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Novel aryloxy migrations in substituted diphenyldithiocarbonates under electron impact conditions

✍ Scribed by D. V. Ramana; P. Mahalakshmi; M. George

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
322 KB
Volume
28
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

Unusual expulsion of ‘SO’ was observed from the molecular ions of substituted diphenyldithiocarbonates under electron impact conditions. An initial aryloxy migration to sulphur followed by further rearrangement is proposed for this process, based on the substituent effects. The diarylthioketone radical–cation structure assigned for the [M – SO] ion was confirmed through the collision‐activated dissociation B/E linked‐scan spectra.

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Dual ortho interaction in 2-substituted-
Dual ortho interaction in 2-substituted-3-(2-methylphenyl)-4(3H)-quinazolinones and their thio analogues under electron impact conditions
✍ D. V. Ramana; E. Kantharaj 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 429 KB

## Abstract Competing __ortho__ interactions, involving the CX and the __ortho__‐methyl substituent on the 3‐phenyl moiety, resulting in the eliminations of ^˙^CH~3~ and ^˙^OH/^˙^SH from the molecular ions of 2‐substituted‐3‐(2‐methylphenyl)‐4(3__H__)‐quinazolinones and their thio analogues, were