ORGANIC CHEM BUNDLE >BI<
10th Edition
ISBN: 9781260719567
Author: Carey
Publisher: MCG
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Chapter 13, Problem 58P
Interpretation Introduction
Interpretation:
The mechanism for the conversion of hexamethylbenzene to compound B by directly inferring the structure of A is to be suggested.
Concept introduction:
In Friedel-Crafts reaction, the reaction of
The electrophile in Friedel-Crafts alkylation is the alkyl cation. The alkyl cation is generated by treating an alkyl chloride with aluminum chloride.
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On being heated with a solution of sodium ethoxide in ethanol, compound A (C7H15Br) produced a mixture of two alkenes B and C, each of which had the molecular formula C7H14. Catalytic hydrogenation of major isomer B or minor isomer C gave only 3-ethylpentane. Suggest structures and mechanisms for compounds A, B, and C consistent with these observations.
Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide (HC≡CNa) )with 1,12-dibromododecane. On treatment of compound A with sodium amide, it was converted to compound B (C14H24). Ozonolysis of compound B gave the diacid HO2C(CH2)12CO2H. Catalytic hydrogenation of compound B over Lindlar palladium gave compound C (C14H26), while hydrogenation over platinum gave compound D (C14H28). Sodium-ammonia reduction of compound B gave compound E (C14H26). Both C and E yielded O═CH(CH2)12CH═O on ozonolysis. Assign structures to compound A through E so as to be consistent with the observed transformations.
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Chapter 13 Solutions
ORGANIC CHEM BUNDLE >BI<
Ch. 13.2 - Based on Hammonds postulate which holds that the...Ch. 13.3 - Prob. 2PCh. 13.3 - Using : O =N+= O : as the electrophile, write a...Ch. 13.4 - Prob. 4PCh. 13.5 - Prob. 5PCh. 13.6 - Prob. 6PCh. 13.6 - Write a reasonable mechanism for the formation of...Ch. 13.6 - tert-Butylbenzene can be prepared by alkylation of...Ch. 13.6 - Prob. 9PCh. 13.7 - The reaction shown gives a single product in 88...
Ch. 13.7 - Prob. 11PCh. 13.8 - Using benzene and any necessary organic or...Ch. 13.10 - Prob. 13PCh. 13.11 - Prob. 14PCh. 13.12 - Prob. 15PCh. 13.12 - Prob. 16PCh. 13.13 - Prob. 17PCh. 13.13 - Prob. 18PCh. 13.14 - Reaction of chlorobenzene with p-chlorobenzyl...Ch. 13.15 - Prob. 20PCh. 13.15 - Prob. 21PCh. 13.15 - Prob. 22PCh. 13.16 - Prob. 23PCh. 13.16 - Prob. 24PCh. 13.17 - Prob. 25PCh. 13.18 - Prob. 26PCh. 13.19 - Write the structure of the expected product from...Ch. 13.20 - Prob. 28PCh. 13.20 - Prob. 29PCh. 13.21 - Prob. 30PCh. 13.21 - Offer an explanation for the observation that...Ch. 13.21 - Prob. 32PCh. 13 - Write the structure of the organic product in each...Ch. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - Prob. 38PCh. 13 - Prob. 39PCh. 13 - Treatment of the alcohol shown with sulphuric acid...Ch. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - Prob. 43PCh. 13 - Arrange the following five compounds in order of...Ch. 13 - Prob. 45PCh. 13 - Prob. 46PCh. 13 - Prob. 47PCh. 13 - Give reagents suitable for carrying out each of...Ch. 13 - Prob. 49PCh. 13 - Prob. 50PCh. 13 - Which is the best synthesis of the compound shown?Ch. 13 - What combination of acyl chloride or acid...Ch. 13 - A standard synthetic sequence for building a...Ch. 13 - Prob. 54PCh. 13 - Prob. 55PCh. 13 - Prob. 56PCh. 13 - Prob. 57PCh. 13 - Prob. 58PCh. 13 - Prob. 59PCh. 13 - Prob. 60DSPCh. 13 - Prob. 61DSPCh. 13 - Prob. 62DSPCh. 13 - Prob. 63DSP
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