Zhenpei Yu Xiaoran He

Peking University

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Meiyu He

Center for Excellence in Molecular Plant Sciences

Sheng Jin

Zhejiang University of Technology

Jin‐Fang Yuan

Henan University

Xin Zhou

University of Münster

Hongzhong Wang

Shanghai University

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Chinese Academy of Sciences

Peking University

Henan University

Center for Excellence in Molecular Plant Sciences

State Key Laboratory of Cotton Biology

Institute of Zoology

National Natural Science Foundation of China

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National University of Singapore

Institute of Materials Research and Engineering

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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

Rapid Communications in Mass Spectrometry (2001)

Meiyu He Jin‐Fang Yuan Zhenpei Yu Xiaoran He Hongzhong Wang Xin Zhou

Abstract Electron impact mass spectra of five new compounds are reported. Under electron impact conditions all five compounds yielded abundant fragment ions and lower abundances of molecular ions. Apart from the expected i ‐and α‐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 © 2001 John Wiley & Sons, Ltd.

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Collision-induced dissociation

10.1002/rcm.358

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