~-Vinyl-p-xylylene (16) has been shown to be an intermediate in the base-catalysed decomposition of both p-allylbenzyltrimethylammoniumb romide (17) and p-methylcinnamyltrimethylammoniumb romide (19). Cyclic dimers (28) and (29) (EE and ZZ isomers, respectively ) are produced via the conjugatively extended vinyl head h' to head h' and tail to tail bond-forming reactions, which accompany a copolymer formed mainly via the contrasting head (vinyl-substituted head h and h') to tail linking of ct-vinyl-p-xylylene.
Посилання на статтю:
Reactions proceeding via the reactive intermediate =-vinyl-p-xylylene. Contrasting orientations in the formation of cyclic dimers and polymer / Gerald M. Brooke* and Martin F. Woolley // Polymer. – 1993. – Vol 34. – P. 1282-1288.