Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 18, Problem 2LGP
Dehydroabietic acid is a natural product isolated from Pinus palustris. It is structurally related to abietic acid, which comes from rosin. The synthesis of dehydroabietic acid (J. Am. Chem. Soc. 1962, 84, 284–292) was accomplished by Gilbert Stork. In the course of this synthesis, Stork discovered his famous enamine reaction.
(a) Write detailed mechanisms for the reactions from 6 to 8 below.
(b) Write detailed mechanisms for all of the reactions from 9 to 11 in Stork’s synthesis of dehydroabietic acid. Note that 11 contains a dithioacetal, which forms similarly to acetals you have already studied (Chapter 16).
(Fleming, I., Selected
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Chapter 18 Solutions
Organic Chemistry
Ch. 18 - Prob. 1PPCh. 18 - Practice Problem 18.2 Would optically active...Ch. 18 - Prob. 3PPCh. 18 - Practice Problem 18.4 Why do we say that the...Ch. 18 - Prob. 5PPCh. 18 - Practice Problem 18.6 (a) Write a reaction...Ch. 18 - PRACTICE PROBLEM 18.7
Show how you would use the...Ch. 18 - Practice Problem 18.8 The acetoacetic ester...Ch. 18 - Practice Problem 18.9
In the synthesis of the keto...Ch. 18 - PRACTICE PROBLEM 18.10 How would you use the...
Ch. 18 - PRACTICE PROBLEM 18.11
How would you use the...Ch. 18 - PRACTICE PROBLEM 18.12 Outline all steps in a...Ch. 18 - PRACTICE PROBLEM 18.13
The antiepileptic drug...Ch. 18 - PRACTICE PROBLEM 18.14 Show how you could employ...Ch. 18 - Prob. 15PCh. 18 - Treating a solution of cis-1-decalone with base...Ch. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - Prob. 19PCh. 18 - Prob. 20PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - Prob. 23PCh. 18 - The synthesis of cyclobutanecarboxylic acid given...Ch. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - Compound J, a compound with two four-membered...Ch. 18 - Prob. 30PCh. 18 - Prob. 31PCh. 18 - 18.32 Shown below is a synthesis of the elm bark...Ch. 18 - 18.33 (a) A compound U gives a negative iodoform...Ch. 18 - 18.34 Compound A has the molecular formula and...Ch. 18 - Prob. 35PCh. 18 - Prob. 36PCh. 18 - Prob. 37PCh. 18 - Prob. 38PCh. 18 - 1. -Carotene is a highly conjugated hydrocarbon...Ch. 18 - Dehydroabietic acid is a natural product isolated...
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