作者:Un Chul Lee、Won Lee、Yun Je Kim、Song Ja Park、Do Young Ra、Nam Sook Cho
DOI:10.1080/10426509808035690
日期:1998.8.1
Fragment pathways of 3-alkyl and acyl-5-amino-1,3,4-thiadiazolin-2-ones were completely assigned by mass analyzed kinetic energy spectra (MIKE), collisional activated dissociation (CAD) spectra and high resolution mass spectra. [NH2CS](+) and [S=C=O](+) ions were directly formed from molecular ion of the 3-alkyl compounds and from 5-amino-3H-1,3,4-thiadiazolin-2-one ion (1) which was produced by McLafferty rearrangement from molecular ion of 3-acyl compounds. A loss of neutral SCO was only detected from 3-alkyl substituted molecular ions.