Concept explainers
(a)
Interpretation:
The IUPAC name for the given alcohol has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in
alkane with “-ol”. - The numbering has to be given so that the hydroxyl group gets the least numbering.
- Name and location of any other substituent present in the chain has to be identified.
- If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
(b)
Interpretation:
The IUPAC name for the given alcohol has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”.
- The numbering has to be given so that the hydroxyl group gets the least numbering.
- Name and location of any other substituent present in the chain has to be identified.
- If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
(c)
Interpretation:
The IUPAC name for the given alcohol has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”.
- The numbering has to be given so that the hydroxyl group gets the least numbering.
- Name and location of any other substituent present in the chain has to be identified.
- If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
(d)
Interpretation:
The IUPAC name for the given alcohol has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”.
- The numbering has to be given so that the hydroxyl group gets the least numbering.
- Name and location of any other substituent present in the chain has to be identified.
- If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
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Chapter 3 Solutions
Organic And Biological Chemistry
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- Draw a Lewis structure for each of the following molecules and assign charges where appropriate. The order in which the atoms are connected is given in parentheses. a. CIFCIF b. BrCNBrCN 0 c. SOCI2 × (CISCIO) SOC₁₂ (CISCI) You can draw both an octet and a valence shell expanded structure. Considering the following structural information, which is the better one: The measured S-OS-O bond length in SOC12SOCl2 is 1.43 Å. For comparison, that in SO2SO2 is 1.43 Å [Exercise 1-9, part (b)], that in CHзSOHCH3 SOH d. CH3NH2CH3NH2 (methanesulfenic acid) is 1.66 A. e. CH3OCH3 CH3 OCH3 NH2 f. N2H2× (HNNH) N2 H2 (HNNH) g. CH2COCH₂ CO h. HN3× (HNNN) HN3 (HNNN) i. N20 × (NNO) N2O (NNO)arrow_forwardbre The reaction sequence shown in Scheme 5 demonstrates the synthesis of a substituted benzene derivative Q. wolsd works 2 NH2 NaNO2, HCI (apexe) 13× (1 HNO3, H2SO4 C6H5CIN2 0°C HOTE CHINO₂ N O *O₂H ( PO Q Я Scheme 5 2 bag abouoqmics to sounde odi WEIC (i) Draw the structure of intermediate O. [2 marks] to noitsmot od: tot meinedogm, noit so oft listsb ni zaupaib bas wa (ii) Draw the mechanism for the transformation of aniline N to intermediate O. Spoilage (b) [6 marks] (iii) Identify the reagent X used to convert compound O to the iodinated compound [tom E P. vueimado oilovonsa ni moitos nolisbnolov ayd toes ai tedw nisiqx (iv) Identify the possible structures of compound Q. [2 marks] [2 marks] [shom 2] (v) bus noires goiribbeolovo xnivollot adj to subora sidab Draw the mechanism for the transformation of intermediate P to compound Q. [5 marks] vi (vi) Account for the regiochemical outcome observed in the reaction forming compound Q. [3 marks]arrow_forwardPROBLEM 4 Solved Show how 1-butanol can be converted into the following compounds: a. PROBLEM 5+ b. d. -C= Narrow_forward
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