Ammonium Chloride-Catalyzed Three-Component Reaction for the Synthesis of Fused 4H-Chromene Derivatives in Aqueous Medium
作者:Abu Khan、Suchandra Bhattacharjee、Deb Das
DOI:10.1055/s-0033-1340082
日期:——
derivatives using a three-component reaction involving salicylaldehydes, cyclic 1,3-diketones, and thiols in an aqueous medium at room temperature. This protocol was accomplished using the inexpensive and readily available catalyst NH4Cl. The attractive features of this protocol are: use of inexpensive catalyst NH4Cl, good yields, and mild and environmentally benign reaction conditions. An efficient one-pot