In the presence of a chiral iridium complex, commercially available 3-chloro-2-chloromethyl-1-propene (1) was selectively activated for various reductive couplings. Depending on the reaction conditions it allows a selective mono- or bidirectional condensation with one or two external aldehydes with excellent enantiocontrol (>90% ee). This approach occurring simply under mild conditions and avoiding
在手性
铱络合物的存在下,市售的3-
氯-2-
氯甲基-
1-丙烯(1)被选择性地活化用于各种还原偶联。根据反应条件,它可以与一种或两种外部醛选择性地进行单向或双向缩合,同时具有出色的对映体控制(> 90%ee)。这种方法仅在温和条件下发生,避免使用预
金属试剂即可快速构建手性均烯丙基醇,这是重要分子片段的重要前体,例如
呋喃,
吡喃,酮二醇或1,3,5-多元醇。