Synthesis of acetyldimethyl(phenyl) silane and its enantioselective conversion into (R)-(1-hydroxyethyl) dimethyl(phenyl) silane by plant cell suspension cultures of Symphytum officinale L. and Ruta graveolens L.
作者:Reinhold Tacke、Stephan A. Wagner、Susanne Brakmann、Frank Wuttke、Udo Eilert、Lutz Fischer、Christoph Syldatk
DOI:10.1016/0022-328x(93)80452-h
日期:1993.10
Starting from chlorodimethyl(phenyl)silane (3), acetyldimethyl(phenyl)silane (1) was prepared by a two-step synthesis in a total yield of 90% [PhMe2SiCl (3) → PhMe2SiC(OMe)=CH2 (4) → PhMe2SiC)(O)Me (1)]. The prochiral acetylsilane 1 was transformed enantioselectively into (R)-(1-hydroxyethyl)dimethyl(phenyl)silane [(R)-2] using plant cell suspension cultures of Symphytum officinale L. or Ruta graveolens
Asymmetric Hydrogenation of Aromatic, Aliphatic, and α,β-Unsaturated Acyl Silanes Catalyzed by Tol-binap/Pica Ruthenium(II) Complexes: Practical Synthesis of Optically Active α-Hydroxysilanes