Rhodium-catalyzed reaction of aroyl chlorides with alkynes or alkenes in the presence of disilanes
作者:Ken Kokubo、Kenji Matsumasa、Masahiro Miura、Masakatsu Nomura
DOI:10.1016/s0022-328x(98)00458-6
日期:1998.6
Internal alkynes effectively undergo aroylarylation, that is 1,2-addition of aroyl and aryl groups, on treatment with aroyl chlorides in the presence of a catalytic amount of [RhCl(cod)]2 and PPh3 using hexamethyldisilane as reducing agent to produce the corresponding 1,3-diaryl-2-propen-1-one derivatives in good yields. The reaction can also proceed using relatively reactive alkenes such as norbornenes
内部炔烃在催化量的[RhCl(cod)] 2和PPh 3的存在下,使用六甲基乙硅烷作为还原剂,通过芳酰氯处理,可以有效地进行芳基芳基化反应,即芳基和芳基的1,2-加成反应。相应的1,3-二芳基-2-丙烯-1-酮衍生物,收率很高。该反应还可以使用相对反应性的烯烃例如降冰片烯代替炔烃进行。用芳酰氯对末端炔烃苯基乙炔进行类似的处理,引起芳酰基甲硅烷基化,得到1-芳基-2-苯基-3-三甲基甲硅烷基-2-丙烯-1-酮。