Chemistry Letters

Preparation of Alkylidenecyclobutanes and Their Transformation to 2, 2-Disubstituted Cyclopentanones.

T Fujiwara, N Iwasaki, T Takeda

Index: Fujiwara, Tooru; Iwasaki, Norie; Takeda, Takeshi Chemistry Letters, 1998 , # 8 p. 741 - 742

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Citation Number: 33

Abstract

抄録 The reaction of ketones with the titanocene reagent prepared by the treatment of 1, 1- bis (phenylthio) cyclobutane with the low valent titanium species Cp< SUB> 2 Ti [P (OEt)< SUB> 3]< SUB> 2 produced the corresponding alkylidenecyclobutanes. These compounds were successfully transformed into 2, 2- disubstituted cyclopentanones by the epoxidation and subsequent ring enlargement. The ...

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