Synthesis of β-Lactones by the Regioselective, Cobalt and Lewis Acid Catalyzed Carbonylation of Simple and Functionalized Epoxides
作者:Jong Tae Lee、P. J. Thomas、Howard Alper
DOI:10.1021/jo010295e
日期:2001.8.1
The PPNCo(CO)(4) and BF(3) x Et(2)O catalyzed carbonylation of simple and functionalized epoxides in DME gives the corresponding beta-lactones regioselectively in good to high yields. The carbonylation occurred selectively at the unsubstituted C-O bond of the epoxide ring, and this reaction tolerates various functional groups such as alkenyl, halide, hydroxy, and alkyl ether.
在DME中PPNCo(CO)(4)和BF(3)x Et(2)O催化的简单和功能化环氧化物的羰基化反应以良好或高收率选择性地产生相应的β-内酯。羰基化选择性地发生在环氧环的未取代的CO键上,该反应可耐受各种官能团,例如烯基,卤化物,羟基和烷基醚。