I. Hannus et al., SPECTRA OF CARBANIONS FORMED FROM ALLYL CYANIDE DURING ISOMERIZATION IN ZEOLITE NAY-FAU WITH STRONG BASIC SITES, Journal of molecular structure, 348, 1995, pp. 345-348
Double bond isomerization of allyl cyanide to crotononitrile over a ba
sic zeolite catalyst was monitored by IR and UV-VIS spectroscopy in or
der to get information on the surface intermediates involved. Due to t
he spectral changes the occurence of a carbanionic intermediate seems
to be highly probable characterized by an absorption at 400 nm.