The asymmetric synthesis of phosphorus- and sulfur-containing tricarbonyl(η6-arene)chromium complexes using the chiral base approach
作者:Azhar Ariffin、Alexander J. Blake、Richard A. Ewin、Wan-Sheung Li、Nigel S. Simpkins
DOI:10.1039/a905610f
日期:——
transformation of tricarbonyl[η6-(diphenylphosphinoyl)benzene]chromium(0) 12 into the corresponding ortho-silylated complex in up to 86% ee. A tin derivative was prepared similarly and was then used to prepare other derivatives via reduction to the corresponding phosphine, followed by transmetallation–electrophilic quench. In the case of tricarbonyl(η6-1,3-dihydroisobenzothiophene)chromium(0) the chiral