Synthesis and Reactions of 1-Alkyl-2, 1-benzisoxazolium Salts

抄録

1-Alkyl-2, 1-benzisoxazolium salts were prepared by the reaction of 2, 1-benzisoxazoles with trialkyl orthoformates in the presence of Lewis acids as well as with Meerwein's reagents or dialkoxycarbonium hexachloroantimonates. Reactions of these quarternary salts with various nucleophilic reagents afforded 3-substituted 1-alkyl-2, 1-benzisoxazoline derivatives.