The synthesis and structure of a set of diastereomeric dirhodium(II)
tetrakis[methyl (4S)-1-acyl-2-
oxoimidazolidine-4-carboxylate] compounds are described, including one
X-ray crystal structure. With the N-acyl moiety based on
the mandelic acid enantiomers, these represent the first examples which
incorporate an addititional stereogenic centre in proximity to the axial sites
of the dirhodium(II) face. The preliminary catalytic profiles of these
diastereomeric complexes are also reported.
一组非对映二铑(II)的合成与结构
四[(4S)-1-酰基-2-氧代咪唑烷-4-羧酸甲酯
草酰亚胺唑烷-4-甲酸]化合物的合成和结构,包括一个
X 射线晶体结构。以扁桃酸对映体为基础的 N-酰基
N-酰基以扁桃酸对映体为基础,这些化合物代表了首例
在邻近二铑(II)对映体的轴向位点处加入了一个附加的立体中心。
的轴向位点附近的附加立体中心。这些非对映复合物的初步催化特性
还报告了这些非对映异构体复合物的初步催化特性。