It's all in the ligand: By choice of the appropriate diphosphine ligand a previously linear‐selective alkyne hydroacylation process can be “switched” to be highly branched‐selective (see scheme, l=linear, b=branched). Structural data for the ortho‐iPr‐dppe–rhodium catalyst suggest restricted rotation of the phosphine aryl units may be responsible for the observed selectivity.
全部都在
配体中:通过选择合适的二
膦配体,可以将先前的线性选择性
炔烃加氢酰化过程“切换”为高度支化的选择性(参见方案,l =线性,b =分支)。用于结构数据邻-我
镨DPPE-
铑催化剂建议限制膦芳基单元的旋转可以是负责观察到的选择性。