Chemische Berichte

Carbodiphosphorane Isomers Based on a 1, 3??Diphosphaindane Skeleton, and Their Precursors

GA Bowmaker, R Herr, H Schmidbaur

文献索引：Bowmaker, Graham A.; Herr, Rudolf; Schmidbaur, Hubert Chemische Berichte, 1983 , vol. 116, # 11 p. 3567 - 3579

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被引用次数: 21

摘要

Abstract In a search for ring-strained carbodiphosphoranes chemical structure image, the diastereomeric bis-phosphanes 1a (RR, SS, RS) and the symmetrical analogue 1c have been converted into the corresponding cyclic methylene-bridged bis-phosphonium bromides 2a, c and hexafluorophosphates 2b. 2a (RR; SS) and 2a (RS) were separated by fractional crystallization. Treatment of 2a–c with base (NH 3 or n-BuLi) yields, in a first step ...