M. Doyle, W. Winchester, J. Hoorn
Nov 1, 1993
Citations
1
Influential Citations
165
Citations
Quality indicators
Journal
Journal of the American Chemical Society
Abstract
Structure-selectivity comparisons are made between 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 dirhodium(II) compounds are reported. Each possesses two oxygen- and two nitrogen-donor atoms bound to each octahedral rhodium with a cis orientation of the nitrogen ligands