Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Textbook Question
Chapter 21, Problem 22P
Write a mechanism that can account for the formation of the following product through a series of olefin metathesis reactions from the indicated starting material.
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Diphenylacetylene can be synthesized by the double dehydrohalogenation of 1,2-dibromo-1,2-diphenylethene. The sequence starting from (E)-1,2-diphenylethene consists of bromination to give the dibromide, followed by dehydrohalogenation to give a vinylic bromide, then a second dehydrohalogenation to give diphenylacetylene.(a) What is the structure, including stereochemistry, of the vinylic bromide?(b) If the sequence starts with (Z)-1,2-dibromo-1,2-diphenylethene, what is (are) the structure(s) of the intermediate dibromide(s)? What is the structure of the vinylic bromide?
Chapter 21 Solutions
Organic Chemistry
Ch. 21 - PRACTICE PROBLEM 21.1
For each of the following...Ch. 21 - Prob. 2PPCh. 21 - PRACTICE PROBLEM 21.3 What product would you...Ch. 21 - Prob. 4PPCh. 21 - PRACTICE PROBLEM 21.5 What is the product of the...Ch. 21 - Prob. 6PPCh. 21 - Prob. 7PPCh. 21 - Prob. 8PPCh. 21 - Prob. 9PPCh. 21 - Prob. 10PP
Ch. 21 - Prob. 11PPCh. 21 - Practice Problem 21.12 What products would form...Ch. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - How would you synthesize each of the following...Ch. 21 - Prob. 16PCh. 21 - Predict the product(s) for each of the following...Ch. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - 21.22 Write a mechanism that can account for the...Ch. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - 21.26 In 1985, T. Katz (Columbia University)...Ch. 21 - When the following molecule was exposed to the...Ch. 21 - During the course of the following Stille...Ch. 21 - 1. In “The Chemistry of... Complex Cross...Ch. 21 - Prob. 2LGP
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