2,2-Dimethyl-2-silanorcarane has been prepared by the stepwise reduction of 7,7-dibromo-2,2-dimethyl-2-silanorcarane with tri-n-butyltinhydride. Treatment of the dibromonorcarane with silver ion or pyrolysis with quinoline releases hydrogen bromide and decomposs the ring system. Trimethyl(dimethylamino)stannane reduces the dibromo compound to a 1.5/1 mixture of the endo- and exo-isomers of 7-bromo-2
Synthesis, resolution, and absolute configuration of 1-phenyl-1-methyl-1-silacyclohexanone-2
作者:A. G. Brook、H. W. Kucera、D. M. MacRae
DOI:10.1139/v70-131
日期:1970.3.1
synthesis and resolution of 1-phenyl-1-methyl-1-silacyclohexanone-2 by oxidative hydroboration of the related silacyclohexene to the silacyclohexanol, resolution of this via the strychnine salt of the phthalate half-ester, and subsequent oxidation of the silacyclohexanol to the silacyclohexanone is described. The carbon analog 1-phenyl-1-methylcyclohexanone-2 was also synthesized in opticallyactive form.