A new synthetic method of Gallium dodecyl sulfate (Ga (DS)3)

摘要

α, β-unsaturated electron-deficient compounds and bis-indolylmethanes were successfully synthesized by gallium dodecyl sulfate (Ga(DS)3) catalyzed Michael addition using indoles and α, β-unsaturated ketones(or aldehyde) as reactant, respectively. The samples were characterized by 1~H NMR (400 MHz), HRMS, and Electrothermal Digital Melting-point. The results showed that the α, β-unsaturated electron-deficient compounds and bis- indolylmethanes could be effectively catalyzed by using Ga(DS)3 to give the corresponding adducts in good to excellent yields in water media.