[bmim]OH-promoted one-pot, three-component synthesis of β-nitro sulfides in water
作者:Barahman Movassagh
DOI:10.1080/10426507.2016.1146272
日期:2016.8.2
GRAPHICAL ABSTRACT ABSTRACT A task-specific ionic liquid, [bmim]OH, has been found to be a highly efficient catalyst for one-pot, three-component coupling of aryl aldehydes, nitromethane, and thiols for the synthesis of β-nitro sulfides in water. The main advantages of the present protocol include the use of inexpensive simple substrates and an ionic liquid as a basic catalyst.
Catalytic cross-Michael/Michael reactions of nitroalkenes and ethyl acrylate with pronucleophiles including thiols, dimethyl methylmalonate, and 2-nitropropane to linear three-component products were developed by using a catalytic amount of DBU in DMSO. Tandem sulfa-Michael/Michael/aldol reactions of a thiol, a nitroalkene, ethyl acrylate, and an aldehyde proceeded to give a linear four-component product