Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 22, Problem 22.38P
The first widely used herbicide for the control of weeds was 2,4-dichlorophenoxyacetic acid (2,4-D). Show how this compound might be synthesized from phenol and chloro-acetic acid by way of the given chlorinated phenol intermediate.
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2. 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 22 Solutions
Organic Chemistry
Ch. 22.1 - Prob. 22.1PCh. 22.1 - Write a structural formula for the product from...Ch. 22.1 - Prob. 22.3PCh. 22.2 - Prob. 22.4PCh. 22.2 - Predict the major produce(s) of each electrophilic...Ch. 22.3 - In SN2 reactions of haloalkanes, the order of...Ch. 22 - Prob. 22.8PCh. 22 - Prob. 22.9PCh. 22 - Addition of m-xylene to the strongly acidic...Ch. 22 - Addition of tert-butylbenzene to the strongly...
Ch. 22 - What product do you predict from the reaction of...Ch. 22 - Other groups besides H+ can act as leaving groups...Ch. 22 - Prob. 22.14PCh. 22 - Prob. 22.15PCh. 22 - Prob. 22.16PCh. 22 - Prob. 22.17PCh. 22 - Suggest a reason why the nitroso group, N=O, is...Ch. 22 - Prob. 22.19PCh. 22 - Prob. 22.20PCh. 22 - The following molecules each contain two aromatic...Ch. 22 - Prob. 22.22PCh. 22 - Prob. 22.23PCh. 22 - The insecticide DDT is prepared by the following...Ch. 22 - Prob. 22.25PCh. 22 - Prob. 22.26PCh. 22 - Prob. 22.27PCh. 22 - Prob. 22.28PCh. 22 - Prob. 22.29PCh. 22 - Prob. 22.32PCh. 22 - Show how to prepare each compound from...Ch. 22 - Prob. 22.34PCh. 22 - Show reagents and conditions to bring about the...Ch. 22 - Prob. 22.36PCh. 22 - Propose a synthesis for each compound from...Ch. 22 - The first widely used herbicide for the control of...Ch. 22 - The first widely used herbicide for the control of...Ch. 22 - Prob. 22.40PCh. 22 - Prob. 22.41PCh. 22 - Prob. 22.42PCh. 22 - Prob. 22.43PCh. 22 - Cancer of the prostate is the second leading cause...Ch. 22 - Prob. 22.45PCh. 22 - Prob. 22.46PCh. 22 - Prob. 22.47PCh. 22 - When certain aromatic compounds are treated with...Ch. 22 - Prob. 22.49PCh. 22 - Following is the structure of miconazole, the...Ch. 22 - Prob. 22.51PCh. 22 - Prob. 22.52PCh. 22 - Prob. 22.53PCh. 22 - Show how the antidepressant venlafaxine (Effexor)...Ch. 22 - Prob. 22.57PCh. 22 - Given this retrosynthetic analysis, propose a...Ch. 22 - Prob. 22.59PCh. 22 - Prob. 22.60PCh. 22 - Prob. 22.61PCh. 22 - A newer generation of antipsychotics, among them...Ch. 22 - Prob. 22.63P
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