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Interpretation:
The structural formula for 2-propanol should be drawn and whether it is primary, secondary, or tertiary alcohol should be indicated.
Concept Introduction:
The formula in which the arrangements of atoms in a molecule are shown is said to be the structural formula.
- An organic compound in which hydroxyl
functional group that is -OH is bonded to the carbon atom is said to be an alcohol. The general formula for alcohol is Cn H2 n + 1 OH. Based on the attachment to the carbon the alcohols are classified as primary, secondary, or tertiary alcohol.
When alcohol (having hydroxyl group) is attached to a primary carbon atom (carbon atom to which one carbon atom is attached) then such alcohol is said to be a primary alcohol.
When alcohol (having hydroxyl group) is attached to a secondary carbon atom (carbon atom to which two carbon atoms are attached) then such alcohol is said to be a secondary alcohol.
When alcohol (having hydroxyl group) is attached to a tertiary carbon atom (carbon atom to which three carbon atoms are attached) then such alcohol is said to be a tertiary alcohol.
Answer to Problem 137AP
Secondary alcohol.
Explanation of Solution
For number of carbons atoms in chain, the prefix is given as:
Carbon-1 meth
Carbon-2 eth
Carbon-3 prop
Carbon-4 but
Carbon-5 pent
Carbon-6 hex
Carbon-7 hept
Carbon-8 oct
Carbon-9 non
Carbon-10 dec
The numbering of the carbon chain is done in such a way that the substituents get the lower number.
The given name is 2-propanol that means the parent chain has 3 number of carbons in the chain and suffix -ol represents it is an alcohol group that is R-OH (where R is
Since, -OH is attached to secondary carbon so, it is a secondary alcohol.
Interpretation:
The structural formula for 2-methyl-2-propanol should be drawn and whether it is primary, secondary, or tertiary alcohol should be indicated.
Concept Introduction:
The formula in which the arrangements of atoms in a molecule are shown is said to be the structural formula.
- An organic compound in which hydroxyl functional group that is -OH is bonded to the carbon atom is said to be an alcohol. The general formula for alcohol is Cn H2 n + 1 OH. Based on the attachment to the carbon the alcohols are classified as primary, secondary, or tertiary alcohol.
When alcohol (having hydroxyl group) is attached to a primary carbon atom (carbon atom to which one carbon atom is attached) then such alcohol is said to be a primary alcohol.
When alcohol (having hydroxyl group) is attached to a secondary carbon atom (carbon atom to which two carbon atoms are attached) then such alcohol is said to be a secondary alcohol.
When alcohol (having hydroxyl group) is attached to a tertiary carbon atom (carbon atom to which three carbon atoms are attached) then such alcohol is said to be a tertiary alcohol.
Answer to Problem 137AP
Tertiary alcohol.
Explanation of Solution
For number of carbons atoms in chain, the prefix is given as:
Carbon-1 meth
Carbon-2 eth
Carbon-3 prop
Carbon-4 but
Carbon-5 pent
Carbon-6 hex
Carbon-7 hept
Carbon-8 oct
Carbon-9 non
Carbon-10 dec
The numbering of the carbon chain is done in such a way that the substituents get the lower number.
The given name is 2-methyl-2-propanol that means the parent chain has 3 number of carbons in the chain and suffix -ol represents it is an alcohol group that is R-OH (where R is aryl/alkyl group) at 2 position, and a methyl substitution at 2 position. So, the structural formula of 2-methyl-2-propanol is:
Since, -OH is attached to tertiary carbon so, it is a tertiary alcohol.
Interpretation:
The structural formula for 4-isopropyl-2-heptanol should be drawn and whether the it is primary, secondary, or tertiary alcohol should be indicated.
Concept Introduction:
The formula in which the arrangements of atoms in a molecule are shown is said to be the structural formula.
- An organic compound in which hydroxyl functional group that is -OH is bonded to the carbon atom is said to be an alcohol. The general formula for alcohol is Cn H2 n + 1 OH. Based on the attachment to the carbon the alcohols are classified as primary, secondary, or tertiary alcohol.
When alcohol (having hydroxyl group) is attached to a primary carbon atom (carbon atom to which one carbon atom is attached) then such alcohol is said to be a primary alcohol.
When alcohol (having hydroxyl group) is attached to a secondary carbon atom (carbon atom to which two carbon atoms are attached) then such alcohol is said to be a secondary alcohol.
When alcohol (having hydroxyl group) is attached to a tertiary carbon atom (carbon atom to which three carbon atoms are attached) then such alcohol is said to be a tertiary alcohol.
Answer to Problem 137AP
Secondary alcohol.
Explanation of Solution
For number of carbons atoms in chain, the prefix is given as:
Carbon-1 meth
Carbon-2 eth
Carbon-3 prop
Carbon-4 but
Carbon-5 pent
Carbon-6 hex
Carbon-7 hept
Carbon-8 oct
Carbon-9 non
Carbon-10 dec
The numbering of the carbon chain is done in such a way that the substituents gets the lower number.
The given name is 4-isopropyl-2-heptanol that means the parent chain has 7 number of carbons in the chain and suffix -ol represents it is an alcohol group that is R-OH (where R is aryl/alkyl group) at 2 position, and anisopropyl substitution at 4 position. So, the structural formula of 4-isopropyl-2-heptanol is:
Since, -OH is attached to secondary carbon so, it is a secondary alcohol.
Interpretation:
The structural formula for 2, 3-dichloro-1-pentanol should be drawn and whether the it is primary, secondary, or tertiary alcohol should be indicated.
Concept Introduction:
The formula in which the arrangements of atoms in a molecule are shown is said to be the structural formula.
- An organic compound in which hydroxyl functional group that is -OH is bonded to the carbon atom is said to be an alcohol. The general formula for alcohol is Cn H2 n + 1 OH. Based on the attachment to the carbon the alcohols are classified as primary, secondary, or tertiary alcohol.
When alcohol (having hydroxyl group) is attached to a primary carbon atom (carbon atom to which one carbon atom is attached) then such alcohol is said to be a primary alcohol.
When alcohol (having hydroxyl group) is attached to a secondary carbon atom (carbon atom to which two carbon atoms are attached) then such alcohol is said to be a secondary alcohol.
When alcohol (having hydroxyl group) is attached to a tertiary carbon atom (carbon atom to which three carbon atoms are attached) then such alcohol is said to be a tertiary alcohol.
Answer to Problem 137AP
Primary alcohol.
Explanation of Solution
For number of carbons atoms in chain, the prefix is given as:
Carbon-1 meth
Carbon-2 eth
Carbon-3 prop
Carbon-4 but
Carbon-5 pent
Carbon-6 hex
Carbon-7 hept
Carbon-8 oct
Carbon-9 non
Carbon-10 dec
The numbering of the carbon chain is done in such a way that the substituents get the lower number.
The given name is 2, 3-dichloro-1-pentanol that means the parent chain has 5 number of carbons in the chain and suffix -ol represents it is an alcohol group that is R-OH (where R is aryl/alkyl group) at 1 position, and 2 chlorine substitution at 2 and 3 position. So, the structural formula of 2, 3-dichloro-1-pentanol is:
Since, -OH is attached to primary carbon so, it is a primary alcohol.
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Chapter 20 Solutions
EBK INTRODUCTORY CHEMISTRY
- Denote the dipole for the indicated bonds in the following molecules. ✓ H3C CH3 B F-CCl3 Br-Cl H3C —Si(CH3)3 CH3 OH HO HO H HO OH vitamin Carrow_forward(a) What is the hybridization of the carbon in the methyl cation (CH3*) and in the methyl anion (CH3)? (b) What is the approximate H-C-H bond angle in the methyl cation and in the methyl anion?arrow_forward10:16 ☑ Vo)) Vo) 4G LTE 76% Complete the following reaction by identifying the principle organic product of the reaction. HO OH ↑ CH2N2 OH ? ○ A. 01 N₂H2C OH ОН B. HO OCH3 OH ○ C. HO OH ŎCH₂N2 ○ D. H3CO OH он Quiz navigation 1 2 3 4 5 11 12 Next page 10 6 7 8 9 10arrow_forward
- Which one of the following statements explain why protecting groups are referred to as “a necessary evil in organic synthesis”? Question 12Select one or more: A. They increase the length and cost of the synthesis B. Every synthesis employs protecting groups C. Protecting group have no role to play in a synthesis D. They minimize the formation of side productsarrow_forwardWhich of the following attributes is a key advantage of the chiral auxiliary approach over the chiral pool approach in asymmetric synthesis? Question 10Select one: A. Chiral auxiliaries are cheaper than chiral pool substrates B. Chiral auxiliary can be recovered and recycled unlike chiral pool substrates. C. The use of chiral auxiliaries provide enantiopure products, while chiral pool reactions are only enantioselective D. The chiral auxiliaries are naturally occurring and do not require synthesisarrow_forwardIn the following molecule, indicate the hybridization and shape of the indicated atoms. CH3 CH3 H3C HO: CI:arrow_forward
- Which of the following are TRUE about linear syntheses? Question 7Select one: A. They are easier to execute B. They are the most efficient strategy for all syntheses C. They are generally shorter than convergent syntheses D. They are less versatile compared to convergent synthesesarrow_forwardWhich of the following characteristics is common among chiral pool substrates? Question 4Select one: A. They have good leaving groups B. They are all achiral C. All have a multiplicity of chiral centres D. They have poor leaving groupsarrow_forwardDetermine whether the following reaction is an example of a nucleophilic substitution reaction: H NO2 H+ NO 2 + Molecule A Molecule B Is this a nucleophilic substitution reaction? If this is a nucleophilic substitution reaction, answer the remaining questions in this table. What word or two-word phrase is used to describe the role Molecule A plays in this reaction? What word or two-word phrase is used to describe the role Molecule B plays in this reaction? Use a 6 + symbol to label the electrophilic carbon that is attacked during the substitution. Highlight the leaving group on the appropriate reactant. O Yes ○ No ☐ 0 dx 000 HE ?arrow_forward
- Draw the major organic product of the Bronsted acid-base reaction. Include all lone pairs and charges as appropriate. Ignore any counterions. :0: NaOH Harrow_forward5. Calculate the total amount of heat transferred as 50 g of wat Specific heat H₂O (g) 2.00 J/g°C -10 °C. Specific heat H₂O (1) Specific heat H₂O (s) 4.18 J/g°C 2.11 J/g°C Heat of vaporization 2260 J/g Heat of fusion 334 J/g Melting point 0°C 6. Calculate the total amount of heat transferred as 25 g of water is heated from 50 °C to 100 °C as a gas. Boiling point 100 °Carrow_forwardCalculate the total amount of heat transferred as 50 g of Water -10°C. Calculate the total amount of heat transferred as 25 g of water is heated from 50°C to 100°C as a gas. \table[[Specific heat H₂O(g), 2.00°C Η 2 g 5. Calculate the total amount of heat transferred as 50 g of wat Specific heat H₂O (g) 2.00 J/g°C -10 °C. 4.18 J/g°C 2.11 J/g°C 2260 J/g 334 J/g Specific heat H₂O (1) Specific heat H₂O (s) Heat of vaporization Heat of fusion Melting point 6. Calculate the total amount of heat transferred as 25 g of water is heated from 50 °C to 100 °C as a gas. Boiling point 100 °C 0°Carrow_forward
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