Double Hydroamination of Alkyne via PTC and Microwave-activated Diastereoselective Synthesis of 2,3-dihydroimidazo[1,2-a]pyridine in an Aqueous Media
作者:Malik A. Waseem、Ali Mohd Lone、Farah Ibad、Afshan Ibad、Vijay B. Yadav、Khursheed Ansari、Bashir Ahamad Shairjogrey、Geeta Watal、I. R. Siddiqui
DOI:10.1002/jhet.2875
日期:2017.9
electrophilic alkyne, dimethylacetylenedicarboxylate has been developed. The strategy of the protocol involves heterocyclisation via double hydroamination of dimethylacetylenedicarboxylate in biphasic system catalyzed by benzyltriethylammonium bromide activated by microwave irradiation. The transformation proceeded smoothly and quantitatively at an ambient temperature. The reaction sequence of the protocol