Journal of Heterocyclic Chemistry

Halogenated ketenes. 37. The synthesis of pyranones utilizing the (4+ 2) cycloaddition of ketenes and siloxy dienes

WT Brady, MO Agho

文献索引：Brady, William T.; Agho, Michael O. Journal of Heterocyclic Chemistry, 1983 , vol. 20, p. 501 - 506

全文：HTML全文

被引用次数: 18

摘要

Abstract The reaction of diphenyl-, dichloro-, and chloroketenes with several siloxy dienes results in (4+ 2) and/or (2+ 2) cycloaddition products depending primarily on Substitution in the diene. The (4+ 2) cycloaddition products are easily hydrolyzed to pyranones. These results are discussed in terms of a dipolar intermediate.