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Konstantin N. Gavrilov Sergey V. Zheglov Alexei A. Shiryaev 《Inorganica chimica acta》2005,358(6):2077-2081
New chiral P,N-bidentate 1,3,2-diazaphospholidine ligands were obtained by one-step phosphorylation of (2S,3S)-2-(ferrocenylideneamino)-3-methylpentan-1-ol and (4S,5S)-(−)-2-methyl-4-hydroxymethyl-5-phenyl-2-oxazoline. Complexation of the new ligands with [Rh(CO)2Cl]2 and [Pd(allyl)Cl]2 was found to give chelate complexes [Rh(CO)Cl(η2-P,N)] and , correspondingly. With the new P,N-ligands, up to 70% ee was achieved in the asymmetric Pd-catalysed sulfonylation of 1,3-diphenyl-2-propenyl acetate with sodium p-toluenesulfinate. In the enantioselective alkylation of 1,3-diphenyl-2-propenyl acetate with dimethyl malonate, up to 91% enantioselectivity was achieved by using complexes as chiral catalysts. 相似文献
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