Tetrahedron Letters

Stable unsymmetrical diphosphenes

CN Smit, TA Van der Knaap, F Bickelhaupt

Index: Smit, C.N.; van der Knaap, Th.A.; Bickelhaupt, F. Tetrahedron Letters, 1983 , vol. 24, # 19 p. 2031 - 2034

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Citation Number: 39

Abstract

Abstract Variation of the ortho-alkyl substituents in diaryldiphosphenes revealed that their stability is determined by steric hindrance. By suitable combinations of ortho-substituents, it was therefore possible to prepare the first relatively stable unsymmetrical diphosphenes ( ...