Dirhodium(II) tetrakis(carboxamidates) with chiral ligands. Structure and selectivity in catalytic metal-carbene transformations
作者:Michael P. Doyle、William R. Winchester、Johannes A. A. Hoorn、Vincent Lynch、Stanley H. Simonsen、Ratna Ghosh
DOI:10.1021/ja00075a013
日期:1993.11
chiral dirhodium(II) tetrakis(methyl 2-oxopyrrolidine-5-carboxylaten), Rh 2 (5S-MEPY) 4 and Rh 2 (5R-MEPY) 4 (5), and dirhodium(II) tetrakis(4-benzyl-2-oxazolidinones), Rh 2 (4R-BNOX) 4 and Rh 2 (45-BNOX) 4 (6), to ascertain and understand their relative effectiveness as catalysts for enantiocontrol in metal-carbene transformations. The syntheses, spectral characteristics, and X-ray structures for these
在手性二铑 (II) 四(甲基 2-氧代吡咯烷-5-羧基)、Rh 2 (5S-MEPY) 4 和 Rh 2 (5R-MEPY) 4 (5) 和二铑 (II) 之间进行结构选择性比较tetrakis(4-benzyl-2-oxazolidinones)、Rh 2 (4R-BNOX) 4 和 Rh 2 (45-BNOX) 4 (6),以确定和了解它们作为金属卡宾转化中对映控制催化剂的相对有效性。报告了这些二铑 (II) 化合物的合成、光谱特征和 X 射线结构。每个都有两个氧和两个氮供体原子,它们与每个八面体铑结合,氮配体的顺式取向