polycyclic aromatic compounds and process for their production and their use in xerografiche techniques

摘要

1470459 Vinyl substituted polycyclic aromatic compounds XEROX CORP 25 June 1974 [27 June 1973] 28048/74 Heading C5E [Also in Divisions C2 C3 and G2] Vinyl substituted polycyclic aromatic compounds of the formula Q-CH = CH 2 (where Q is a polycyclic aromatic group having at least 3 fused ring nuclei) are prepared by contacting an aldehyde Q-CHO with a phosphine ylide Y 3 P=CH#-#Y 3 PSP+/SP-CH 2 SP-/SP (where Y is alkyl, phenyl or alkylphenyl). Examples of Q are 1,2- benzanthracene; 1,2,5,6-dibenzanthracene; 1- methyl - 2,3 - benzocrysene; 2,3 - benzocrysene; 3,4-benzopyrene and a crysene group. The reaction may be carried out at 20-85‹ C.