Functionalized isothiazoloisoxazole-4,4-dioxide, pyrazoloisothiazole-1,1-dioxide, [1,2]thiazinoisoxazole-4,4-dioxide and benzo[1,2]thiazinoisoxazole-4,4-dioxide systems have been obtained by intramolecular 1,3-dipolar cycloaddition, starting from substituted alpha- and beta-sulfonamides. (C) 1997 Elsevier Science Ltd.
Functionalized isothiazoloisoxazole-4,4-dioxide, pyrazoloisothiazole-1,1-dioxide, [1,2]thiazinoisoxazole-4,4-dioxide and benzo[1,2]thiazinoisoxazole-4,4-dioxide systems have been obtained by intramolecular 1,3-dipolar cycloaddition, starting from substituted alpha- and beta-sulfonamides. (C) 1997 Elsevier Science Ltd.
Stereoselective synthesis of isoxazole and pyrazole annulated sultams via intramolecular 1,3-dipolar cycloaddition reactions
CHIACCHIO, Ugo;PISTARA', Venerando;RESCIFINA, Antonio;
1997-01-01
Abstract
Functionalized isothiazoloisoxazole-4,4-dioxide, pyrazoloisothiazole-1,1-dioxide, [1,2]thiazinoisoxazole-4,4-dioxide and benzo[1,2]thiazinoisoxazole-4,4-dioxide systems have been obtained by intramolecular 1,3-dipolar cycloaddition, starting from substituted alpha- and beta-sulfonamides. (C) 1997 Elsevier Science Ltd.File in questo prodotto:
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