作者:P.Mark Jackson、Christopher J. Moody、Pritom Shah
DOI:10.1016/s0040-4039(00)82201-7
日期:1988.1
Pyrano[3,4-b]thiophen-5-ones are stable thiophene-2,3-quinodimethanes that undergo Diels-Alder reaction with alkynes to give, after loss of carbon dioxide, benzothiophenes; dibenzothiophenes can be prepared similarly from the corresponding benzothiophene-2,3-quinodimethane equivalent.
吡喃并[3,4- b ]噻吩-5-酮是稳定的噻吩-2,3-喹二甲烷,与炔烃进行狄尔斯-阿尔德反应,在失去二氧化碳后产生苯并噻吩。可以由相应的苯并噻吩-2,3-喹二甲烷当量类似地制备二苯并噻吩。