21870-74-6Relevant articles and documents
Dicyanodiaryl-p-quinodimethanes : An efficient synthesis using a new dilithium reagent and their solvent-dependent properties
Kawase, Takeshi,Wakabayashi, Masaki,Takahashi, Chizuko,Oda, Masaji
, p. 1055 - 1056 (1997)
A series of 7,7-dicyano-8,8-diaryl-p-quinodimethane are readily prepared by the reaction of 4-lithiophenyldicyanomethyl-lithium 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.