Direct, oxidative halogenation of diaryl- or dialkylphosphine oxides with (dihaloiodo)arenes
作者:Jasmin Eljo、Graham K. Murphy
DOI:10.1016/j.tetlet.2018.06.044
日期:2018.8
The oxidative halogenation of diaryl- or dialkylphosphine oxides with the hypervalent iodine reagents (difluoroiodo)toluene (p-TolIF2, 1) and (dichloroiodo)benzene (PhICl2, 2) is reported. Phosphoric fluorides could be recovered in 32–75% yield, or they could be trapped with EtOH to give the corresponding phosphinate in typically good yield. Phosphoric chlorides were not readily isolable, and were
与高价碘试剂(difluoroiodo)甲苯(二芳基二烷基膦或氧化物的氧化卤化p -TolIF 2,1)和(dichloroiodo)苯(PhICl 2,2被报告)。磷的氟化物可以32-75%的产率回收,或者可以将其用EtOH捕集,以通常良好的产率得到相应的次膦酸酯。磷氯化物不易分离,并被乙醇和胺亲核试剂截留,以最高90%的收率得到二芳基或二烷基膦酸膦和次膦酰胺。