Bismuth(III)-Catalyzed Rapid Synthesis of 2,3-Disubstituted Quinoxalines in Water
作者:Jhillu Yadav、Basi Reddy、Kokku Premalatha、Kattela Shiva Shankar
DOI:10.1055/s-0028-1083230
日期:2008.12
A variety of 2,3-disubstituted quinoxalines are readily prepared in high yields under extremely mild conditions by cyclocondensation of arene-1,2-diamines with 1,2-dicarbonyls using a catalytic amount of bismuth(III) triflate. The reactions of 2,3-diaminopyridine with 1,2-dicarbonyls produce pyrido[2,3-b]pyrazine derivatives under similar conditions.
在极温和的条件下,通过使用催化剂三氟甲基铋(III) 提供的少量三氟酸盐,能高产率地合成多种 2,3-二取代喹喔啉。将芳香族 1,2-二胺与 1,2-二酮环缩合反应。2,3-二氨基吡啶与 1,2-二酮在类似条件下反应生成吡啶[2,3-b]吡唑衍生物。