Organic Chemistry
4th Edition
ISBN: 9780077479824
Author: SMITH, Janice Gorzynski/
Publisher: McGraw-Hill College
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Question
Chapter 27, Problem 27.31P
Interpretation Introduction
(a)
Interpretation: The cyclic product formed on photochemical electrocyclic ring closure of given decatetraene is to be determined.
Concept introduction: Electrocyclic reactions involve ring opening or ring closure in a conjugated polyene. According to Woodward-Hoffmann rules, the acyclic polyene containing even number of bonds in photochemical conditions undergoes reaction in disrotatory fashion and acyclic polyene containing odd number of bonds undergo reaction in conrotatory fashion.
Interpretation Introduction
(b)
Interpretation: The cyclic product formed on photochemical electrocyclic ring closure of given decatetraene is to be determined.
Concept introduction: Electrocyclic reactions involve ring opening or ring closure in a conjugated polyene. According to Woodward-Hoffmann rules, the acyclic polyene containing even number of bonds in photochemical conditions undergoes reaction in disrotatory fashion and acyclic polyene containing odd number of bonds undergo reaction in conrotatory fashion.
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Chapter 27 Solutions
Organic Chemistry
Ch. 27 - Prob. 27.1PCh. 27 - Problem 27.2
For each molecular orbital in Figure...Ch. 27 - Problem 27.3
(a) Using Figure 27.2 as a guide,...Ch. 27 - Problem 27.4
(a) How many molecular orbitals are...Ch. 27 - Prob. 27.5PCh. 27 - Prob. 27.6PCh. 27 - Prob. 27.7PCh. 27 - Prob. 27.8PCh. 27 - Prob. 27.9PCh. 27 - Prob. 27.10P
Ch. 27 - Problem 27.11
What product would be formed by the...Ch. 27 - Consider cycloheptatrienone and ethylene, and draw...Ch. 27 - Problem 27.13
Show that a thermal suprafacial...Ch. 27 - Prob. 27.14PCh. 27 - a Draw the product of the following [4+2]...Ch. 27 - Prob. 27.16PCh. 27 - Prob. 27.17PCh. 27 - Problem 27.18
Using orbital symmetry, explain why...Ch. 27 - Prob. 27.19PCh. 27 - Prob. 27.20PCh. 27 - Prob. 27.21PCh. 27 - Prob. 27.22PCh. 27 - Prob. 27.23PCh. 27 - Problem 27.25
(a) What product is formed by the...Ch. 27 - Prob. 27.25PCh. 27 - Prob. 27.26PCh. 27 - Prob. 27.27PCh. 27 - Prob. 27.28PCh. 27 - Prob. 27.29PCh. 27 - Prob. 27.30PCh. 27 - Prob. 27.31PCh. 27 - Prob. 27.32PCh. 27 - Prob. 27.33PCh. 27 - Prob. 27.34PCh. 27 - Prob. 27.35PCh. 27 - Prob. 27.36PCh. 27 - Prob. 27.37PCh. 27 - Prob. 27.38PCh. 27 - Prob. 27.39PCh. 27 - Prob. 27.40PCh. 27 - Prob. 27.41PCh. 27 - Prob. 27.42PCh. 27 - Prob. 27.43PCh. 27 - Prob. 27.44PCh. 27 - Prob. 27.45PCh. 27 - 27.47 What product is formed from the [5,5]...Ch. 27 - 27.49 Draw structures for A, B, and C in the...Ch. 27 - Prob. 27.48PCh. 27 - Prob. 27.49PCh. 27 - 27.52 Draw the products of each reaction.
c....Ch. 27 - Prob. 27.51PCh. 27 - 27.54 Draw a stepwise, detailed mechanism for the...Ch. 27 - Prob. 27.53PCh. 27 - Prob. 27.54PCh. 27 - 27.58 Draw a stepwise, detailed mechanism for the...Ch. 27 - Prob. 27.56PCh. 27 - Prob. 27.57PCh. 27 - Prob. 27.58PCh. 27 - Prob. 27.59P
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