In the presence of a rhodium catalyst, unactivated BaylisâHillman adducts reacted with arylboronic acids to afford trisubstituted alkenes with good yields. This highly efficient reaction (aerobic conditions, low temperature) is believed to proceeds via an unexpected mechanism involving 1,4-addition/β-hydroxy elimination steps and not Ï-allyl type rhodium intermediates.
在
铑催化剂的作用下,未活化的 BaylisâHillman 加合物与芳基
硼酸发生反应,生成三取代烯烃,且收率很高。这种高效反应(有氧条件、低温)被认为是通过一种意想不到的机制进行的,其中涉及 1,4-加成/δ-羟基消除步骤,而不是Ï-烯丙基型
铑中间体。