Chemistry letters

Dicyanodiaryl-p-quinodimethanes: an efficient synthesis using a new dilithium reagent and their solvent-dependent properties

T Kawase, M Wakabayashi, C Takahashi, M Oda

Index: Kawase, Takeshi; Wakabayashi, Masaki; Takahashi, Chizuko; Oda, Masaji Chemistry Letters, 1997 , # 10 p. 1055 - 1056

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Citation Number: 6

Abstract

抄録 A series of 7, 7-dicyano-8, 8-diaryl-< I> p-quinodimethane are readily prepared by the reaction of 4-lithiophenyldicyanomethyllithium with diaryl ketones; the 8-(4- dimethylaminophenyl) compounds thus obtained show solvent-dependent absorption spectra and bond rotation of the exocyclic double bonds and form a head-to-tail dimeric structure in the crystal.