Phenylbiphenyl-2,2â²-ylenebismuth diacetate reacted with nucleophiles under basic conditions to give modest to good yields of the C-phenylated substrates. Under copper catalysis, it reacted with hydroxy or amino groups to give the products of O- or N-phenylation. In both sets of reaction conditions, this reagent showed a reduced reactivity compared to the analogous triphenylbismuth diacetate reagent. It showed also a high regioselectivity as only the phenyl derivatives were detected and isolated.
苯基
联苯-
2,2â²-亚乙基二
乙酸铋与亲核物在碱性条件下发生反应,生成的 C-
苯基化底物产量不高,但质量很好。在
铜催化下,它与羟基或
氨基反应,得到 O-或 N-
苯基化产物。与类似的二
乙酸三苯基铋试剂相比,在这两组反应条件下,该试剂的反应活性都有所降低。它还具有很高的区域选择性,因为只有
苯基衍
生物才能被检测和分离出来。