One-pot three-component Mannich-type reaction catalyzed by trifluoromethanesulfonic acid in water
作者:Gang Li、Hankui Wu、Zhiyong Wang、Xianli Wang
DOI:10.1134/s0023158411010113
日期:2011.2
One-pot three-componentMannich-typereaction of ketones, aldehydes and amines was efficiently catalyzed by liquid trifluoromethanesulfonic acid in water at ambient temperature. The high yield of corresponding β-amino ketones compounds were achieved. The proposed method is mild, green, simple and efficient.
Aluminium dodecatungstophosphate (AlPW12O40)—An efficient catalyst for three-component Mannich reaction in water
作者:Gang Li、Ruiling Long、Suling Yang、Liping Zhang
DOI:10.1134/s0023158411040045
日期:2011.7
One-pot, three-component Mannich reactions of ketones, aldehydes and amines were efficiently catalyzed by AlPW12O40 in water at ambient temperature to give the corresponding beta-amino ketones in good to excellent yields. The method has the following merits: Firstly, Catalyst AlPW12O40 is non-corrosive and environmentally benign; Secondly, loading amount of catalyst is very low, less than 1 mol %; Thirdly, water as solvent is green and safe.