Carbohydrate-based tolylsulfonyl hydrazines: effective catalysts for Michael addition of indoles to electron-deficient olefins in water.
[摘要]:Carbohydrate-based tolylsulfonyl hydrazines were used for the first time to catalyze the Michael reaction of indoles to electron-deficient olefins in aq. media to afford 3-substituted indole derivs. in good to excellent yields at room temp.
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