作者:Katsushi Morimoto、Kenzi Makino、Gozyo Sakata
DOI:10.1016/s0022-1139(00)80339-5
日期:1992.12
The reaction of quinoxalin-2-ones (1) with difluorocarbene derived from chlorodifluoro- methane(CHClF2) has afforded 2-difluoromethoxyquinoxalines (2), 1-difluoromethyl- quinoxalin-2-ones (3) and 2-fluoroquinoxalines (4), and with difluorocarbene from dibromodifluoromethane (CBr2F2) afforded 2-bromodifluoromethoxyquinoxalines (5), (2) and (4). Compounds 2 and 5 were readily converted into 4 under basic
喹喔啉-2-酮(1)与衍生自氯二氟甲烷(CHClF 2)的二氟卡宾的反应得到了2-二氟甲氧基喹喔啉(2),1-二氟甲基喹喔啉-2-酮(3)和2-氟喹喔啉(4)。 ,与来自二溴二氟甲烷的二氟卡宾(CBr 2 F 2)一起,得到2-溴二氟甲氧基喹喔啉(5),(2)和(4)。在碱性条件下,化合物2和5容易转化为4。2-溴二氟甲氧基喹喔啉(5a)用聚(氟化氢)吡啶制得2-三氟甲氧基喹喔啉(6a)。