typically volatile or highly toxic, or they require harsh reaction conditions. Incorporation of both CN and HCF2 into organic molecules, such as alkenes, is a worthwhile but challenging task. A method for photocatalyzed cyanodifluoromethylation of alkenes has been developed, which employs a Ph3P+CF2CO2−/NaNH2 (or NH3) reagent system. Ph3P+CF2CO2− functions as both the HCF2 and CN carbon source. A cyanide
二
氟甲基化是一种直接且广泛应用的策略,用于将HCF 2掺入有机分子中。相反,
氰化试剂通常是挥发性的或剧毒的,或者它们需要苛刻的反应条件。将CN和HCF 2都掺入有机分子(例如烯烃)中是一项值得但具有挑战性的任务。一种用于烯烃的光催化cyanodifluoromethylation方法已被开发出来,其采用的Ph线3 P + CF 2 CO 2 - / NaNH 2(或NH 3)的试剂系统。pH值3 P + CF 2 CO 2 -作为HCF 2和CN碳源。在温和的条件下原位产生
氰化物阴离子,从而避免使用有毒的
氰化试剂。光催化方法允许在温和的室温条件下将一系列烯烃进行
氰基二
氟甲基化。产物中的CN基团可以通过标准方法进一步衍生。