1,2-diastereoselection induced by chiral silicon in the addition of Grignard reagents to acylsilanes
摘要:
The reaction of acylsilanes 1 with Grignard reagents gives the diastereomeric alpha-hydroxysilanes 3. The level of asymmetric induction depends on the nature of R1 and R2. Good results were obtained for R1 = t-Bu, R2 = Me and R1 = alpha-Napht, R2 = Ph. Subsequent desilylation occurs with predominant inversion of configuration at carbon.
Synthese von racemischem Acetyl(t-butyl)methylphenylsilan und Acetylmethylphenyl[(trimethylsilyl)methyl]silan: Substrate für stereoselektive mikrobielle Reduktionen
TACKE, REINHOLD;FRITSCHE, KIRSTEN;TAFEL, ANDREA;WUTTKE, FRANK, J. ORGANOMET. CHEM., 388,(1990) N-2, C. 47-55
作者:TACKE, REINHOLD、FRITSCHE, KIRSTEN、TAFEL, ANDREA、WUTTKE, FRANK
DOI:——
日期:——
Synthese von racemischem Acetyl(t-butyl)methylphenylsilan und Acetylmethylphenyl[(trimethylsilyl)methyl]silan: Substrate für stereoselektive mikrobielle Reduktionen
1,2-diastereoselection induced by chiral silicon in the addition of Grignard reagents to acylsilanes
作者:Bianca F Bonini、Stefano Masiero、Germana Mazzanti、Paolo Zani
DOI:10.1016/s0040-4039(00)93607-4
日期:1991.11
The reaction of acylsilanes 1 with Grignard reagents gives the diastereomeric alpha-hydroxysilanes 3. The level of asymmetric induction depends on the nature of R1 and R2. Good results were obtained for R1 = t-Bu, R2 = Me and R1 = alpha-Napht, R2 = Ph. Subsequent desilylation occurs with predominant inversion of configuration at carbon.