Preparation of cyclobutenones and cyclopent-2-enones via epoxy sulfone cyclizations

B Corbel, JM Decesare, T Durst

文献索引：Corbel,B. et al. Canadian Journal of Chemistry, 1978 , vol. 56, p. 505 - 511

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被引用次数: 28

摘要

Epoxysulfones of the type react with about 2 equiv. of CH3MgI in THF to give 3- phenylsulfonylcyclobutanols and 3-phenylsulfonylcyclopentanols in good to excellent yields. 3-Alkyl-3-phenylsulfonylcyclobutanols and-cyclopentanols can be obtained either from the appropriately substituted epoxides or by alkylation of the dianion of the parent 3- phenylsulfonylcycloalkanols. Oxidation of these alcohols with Jones' reagent followed by ...