An efficient synthesis of aryldithiocarbamic acid esters from Michael addition of electron-deficient alkenes with arylamines and CS2 in solid media alkaline Al2O3

An efficient synthesis of dithiocarbamic acid esters from Michael addition of electron-deficient alkenes with arylamines and CS2 in solid media alkaline Al2O3 was presented. This method was suitable for a wide range of amines and a variety of Michael receptors. Specially, a series of aryldithiocarbamic acid esters was obtained from arylamines through this method. The protocol offers clean reactions and high yields with simple experimental procedures. Besides, the alkaline Al2O3 could be reused.