Heterocyclic Compounds
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ChemInform Abstract: Dioxopyrrolines. Part 58. Rearrangement of 2,3-Dioxo-1,4-oxazines to 4, 5-Dioxooxazoles in the Reaction with Dimethylsulfoxonium Methylide.
First published: October 4, 1994
Abstract
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ChemInform Abstract
The mechanism of the reaction of the dioxooxazines (I) with dimethylsulfoxonium methylide (II), causing an unusual ring contraction with introduction of a methylene group to yield (III) is discussed and compared with the reaction of dimethylsulfonium methylide (IV).
