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Chemical ionization induced fragmentations of 2-phenyl-1,3,2-dioxaborolanes and 2-phenyl-1,3,2-dioxaborinanes

✍ Scribed by Richard A. Hancock; Helmut Weigel

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
156 KB
Volume
14
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

Chemical ionization induced fragmentations (with 2‐methylpropane as reagent gas) of 4‐methyl‐ and 4,5‐dimethyl‐2‐phenyl‐1,3,2‐dioxaborolane and 4‐methyl‐2‐phenyl‐1,3,2‐dioxaborinane gave in each case two fragments, a hydrocarbon ion and metaboric acid. Propeae and thence metaboric acid are eliminated from 4,6‐dimethyl‐2‐phenyl‐1,3,2‐dioxaborinane. The mechanisms of the fragmentations are discussed. Under the conditions used 2‐phenyl‐1,3,2‐dioxaborolane and 2‐phenyl‐1,3,2‐dioxaborinane do not fragment.

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