Fragmentation mechanism of novel compounds: 3,3-dichloro-1-[2-(2,2-dichloro-1-oxoethylthio) phenyl]-4-(4-methoxyphenyl)-4-(1-phenylvinyl)-2-azetidinone and its derivatives

摘要

Electron impact mass spectra of five new compounds are reported. Under electron impact conditions ail five compounds yielded abundant fragment ions and lower abundances of molecular ions. Apart from the expected i-and alpha -cleavages, three additional unusual fragmentation processes were observed. The proposed fragmentation mechanisms were supported by D-labeling experiments, accurate mass measurements, and mass-analyzed ion kinetic energy spectrometry, Copyright (C) 2001 John Wiley & Sons, Ltd. [References: 9]