Enantioselective metal complex catalysis. 6. Rhodium catalysts for asymmetric hydrosilylation based on chiral phosphites |
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| Authors: | E Yu Zhorov K N Gavrilov V A Pavlov A T Teleshev L S Gorshkova É E Nifant'ev E I Klabunovskii |
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| Institution: | (1) N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow |
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| Abstract: | A study has been made of the asymmetric hydrosilylation of acetophenone by diphenylsilane under the influence of rhodium complexes with chiral phosphites. The enantioselective nature of the reaction depends on the phosphite structure, the acetophenone/rhodium and ligana/rhodium ratios, and the temperature. The maximum optical yield (24%) is attainod on the complex Rh(COD)Cl]2/(S, S)-2-ethoxy-4,5-dicarbisopropoxy-1,3-2-dioxophiospholane.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 983–989, May, 1991. |
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