title: Hydride abstraction in positive-ion electrospray interface: oxidation of 1,4-dihydropyridines in electrospray ionization mass spectrometry.
abstract: During the positive-ion mode electrospray ionization mass spectrometry analysis of 1,4-diphenyl-3-benzoyl-1,4-dihydropyridines with methanol as the solvent, the major ion generated is one mass unit lower than the analyte, which can be rationalized as the oxidative aromatization of 1,4-dihydropyridines to pyridine cations.
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou, China.
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Chai
authors.forename: Hezhi
authors.initials: H
authors.lastname: Sun
authors.forename: Jieping
authors.initials: J
authors.lastname: Wan
authors.forename: Yuanjiang
authors.initials: Y
authors.lastname: Pan
authors.forename: Cuirong
authors.initials: C
authors.lastname: Sun