October 15, 2005
View Full PaperSynthesis of Isoxazoles via Electrophilic Cyclization
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Abstract
reaction: see text A variety of 3,5-disubstituted 4-halo(seleno)isoxazoles are readily prepared in good to excellent yields under mild reaction conditions by the reaction of 2-alkyn-1-one O-methyl oximes with ICl, I2, Br2, or PhSeBr.