Synthesis of 5,7-dihydroxy-8- (N - aryl) benzamido-4- methyl coumarin Derivatives via MSA as an Acidic catalyst

An efficient synthesis of 5,7- dihydroxy-8- (N- aryl) benzamido-4- methyl coumarin derivatives using 5,7- dihydroxy-4- methyl coumarin, benzamide, aromatic aldehydes and MSA ( molibedat sulfuric acid) as heterogeneuos catalyst is described. The thermal solvent- free conditions and green procedures offer adventages such as shorter reaction times, simpl work-up, excellent yield, recovery and reusability of catalyst.

کلیدواژه ها:

5 ، 7- dihydroxy-4- methyl coumarin ، MSA ، benzamide ، aromatic aldehyde