Functionalized isothiazoloisoxazole-4,4-dioxide, pyrazoloisothiazole-[1,2]-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.
Stereoselective Synthesis of Isoxazole and Pyrazole Annulated Sultams Via Intramolecular 1,3-Dipolar Cycloaddition Reactions
PIPERNO, Anna;ROMEO, Giovanni;ROMEO, Roberto
1997-01-01
Abstract
Functionalized isothiazoloisoxazole-4,4-dioxide, pyrazoloisothiazole-[1,2]-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.File in questo prodotto:
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