The Journal of Organic Chemistry

Diels-Alder Reactions of. alpha.-Substituted Styrenes with p-Benzoquinone

ND Willmore, DA Hoic, TJ Katz

Index: Willmore, Nikolaos D.; Hoic, Diego A.; Katz, Thomas J. Journal of Organic Chemistry, 1994 , vol. 59, # 7 p. 1889 - 1891

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Citation Number: 31

Abstract

Large quantities of carbocyclic helicenes, for example 1, can be made by a new procedure that combines divinyl aromatics with p-benzoquin0ne. l The key to good yields is to substitute alkoxy substituents at the a-positions of the styrenesa2 Although the Diels-Alder reactions of styrenes with p-benzoquinone and other dienophiles have been extensively studied: no similar transformations have been reported for the simplest examples, enol ...