NewC2-Symmetric Diphosphite Ligands Derived from Carbohydrates: Effect of the Remote Stereocenters on Asymmetric Catalysis
作者:M. Rosa Axet、Jordi Benet-Buchholz、Carmen Claver、Sergio Castillón
DOI:10.1002/adsc.200600654
日期:2007.8.6
The synthesis of new modular chiral diphosphite ligands with C2-symmetry and carbohydrate backbone is reported. We also report here the synthesis of the corresponding rhodium complexes [Rh(COD)(L)]BF4 (L=diphosphite). All these species have been characterised in solution by NMR spectroscopy and in some cases in the solid state by X-ray diffraction. The solution structures of the hydridorhodiumcarbonyl