Boron-trihalide-promoted regioselective ring-opening reactions of gem-difluorocyclopropyl ketones
作者:Tang-Po Yang、Qiang Li、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1039/c3cc47879c
日期:——
Boron trihalide-promoted ring-opening reactions of gem-difluorocyclopropyl ketones to give the corresponding β-trifluoromethyl ketones and β-halodifluoromethyl ketones were described. It was found that boron trihalides act as both Lewis acids and nucleophiles and the proximal bond prefers to cleave in this transformation.
描述了硼三卤化物促进的gem-二氟环丙酮开环反应,以生成相应的β-三氟甲基酮和β-卤二氟甲基酮。研究发现,硼三卤化物既可以作为路易斯酸,也可以作为亲核试剂,并且在该转化中,靠近的键更倾向于断裂。