The name that appears for a one-carbon branch should be given. Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature . It has three parts: root name, suffix, and prefix. Rules for nomenclature of alkanes : 1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.” 2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH 3 is used as substituent, it is named as methyl. 3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers. 4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule. 5. If two or more substituents are present in molecule, these are named in alphabetical order. 6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones. 7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

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Answer 1

Question

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

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Part II. xiao isolated a compound TAD (Ca H 10 N₂) from tobacco and obtained its IR spectrum. Xiao proposed a chemical structure shown below: % Transmittance 4000 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 (a) Explain why her proposed structure is inconsistent with the IR spectrum obtained (b) TAD exists as a tautomer of the structure xiao proposed. Draw the structure and explain why it is more compatible with the obtained spectrum. (C) what is the possible source for the fairly intense signal at 1621cm1

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Answer 2

Question

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

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Answer 3

Question

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

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Answer 4

Question

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

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Answer 5

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

Answer 6

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

Answer 7

Chapter NW1, Problem 9CTQ

(a)

Interpretation Introduction

Interpretation: The name that appears for a one-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

Answer 8

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

Answer 9

(b)

Interpretation Introduction

Interpretation: The name that appears for the two-carbon branch should be given.

Concept introduction: Systematic way to name different organic compounds is IUPAC nomenclature. It has three parts: root name, suffix, and prefix.

Rules for nomenclature of alkanes:

1 The longest continuous carbon chain is identified first and named in accordance with number of carbon atoms present in it. For example, hydrocarbon with one carbon atom has prefix “meth”, that with two carbon atoms has prefix “eth”, that with three carbon atoms has prefix “prop” and so on. Suffix used for alkanes is “ane.”

2. Substituents attached to parent carbon chain are to be identified. These are named by removal of single hydrogen atom from carbon chain end and named by replacement of suffix “ane” by “yl.” For example if CH3 is used as substituent, it is named as methyl.

3. Carbons of parent chain are named in such way that substituents acquire the lowest numbers.

4. If same substituent is present more than one time in molecule, it is represented by prefix “di”, “tri” and so on. It depends on number of times substituent occurs in molecule.

5. If two or more substituents are present in molecule, these are named in alphabetical order.

6. If carbon chains of same length exist in same molecule, chain with the largest number of side chains, followed by lowest number to substituents, chain with the greatest number of carbon atoms in smaller chain and chain with the least branched side chains are preferred over other ones.

7. Prefix “cyclo” is used if cyclic alkane is present in molecule.

Answer 10

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Answer 13

Ch. NW1 - Prob. 1CTQ Ch. NW1 - (E) Write a correct name below each of the...Ch. NW1 - (E) What suffix do all the names in Model 1 have...Ch. NW1 - (E) What prefix stands for eight carbons?Ch. NW1 - Prob. 5CTQ Ch. NW1 - Prob. 6CTQ Ch. NW1 - Prob. 7CTQ Ch. NW1 - Prob. 8CTQ Ch. NW1 - Prob. 9CTQ Ch. NW1 - Use Model 1 to propose names for three-, four-,...

Solution Summary: The author explains the IUPAC nomenclature, which has three parts: root name, suffix, and prefix.

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