Synthesis and structure of Cr(CO)3 complexes of biphenyl compounds with axial chirality
作者:Motokazu Uemura、Hikaru Nishimura、Ken Kamikawa、Motoo Shiro
DOI:10.1016/0020-1693(94)03894-5
日期:1994.7
Abstract Chromium complexation of a 2,6,2′-trisubstituted biphenyl compound gave four mono-Cr(CO) 3 and one di-Cr(CO) 3 complexation products in a variable ratio depending on the reaction conditions. However, cross-coupling of (2,6- disubstituted-1-bromobenzene)Cr(CO) 3 with 2-substituted phenylboronic acid catalyzed by palladium(0) produced a stereoselectively coupled product without the formation
摘要2,6,2'-三取代联苯化合物的铬络合反应可根据反应条件以可变比例生成四个单Cr(CO)3和一个二Cr(CO)3络合产物。但是,(2,6-二取代-1-溴苯)Cr(CO)3与钯(0)催化的2-取代苯基硼酸的交叉偶联产生了立体选择性偶联的产物,而没有形成轴向异构体。这些铬配合物的晶体结构通过X射线晶体学测定。