Chiral synthesis via organoboranes. 13. A highly diastereoselective and enantioselective addition of [(Z)-.gamma.-alkoxyallyl]diisopinocampheylboranes to aldehydes
Hoffmann, Reinhard W.; Kemper, Bruno; Metternich, Rainer, Liebigs Annalen der Chemie, 1985, # 11, p. 2246 - 2260
作者:Hoffmann, Reinhard W.、Kemper, Bruno、Metternich, Rainer、Lehmeier, Thomas
DOI:——
日期:——
Asymmetric γ-Methoxyallylation with the Robust 10-TMS-9-Borabicyclo[3.3.2]decanes
作者:Lorell Muñoz-Hernández、John A. Soderquist
DOI:10.1021/ol900865y
日期:2009.6.18
The asymmetric gamma-methoxyallylboration of aldehydes with the configurationally very stable 1 gives nonracemic threo-beta-methoxyhomoallylic alcohols 7 (65-93%) with excellent selectivity (96-99% de, 98-99% ee). The corresponding homoallylic amines 10 are obtained from N-H aldimines with similar efficiency (72-96%) and with excellent diastereoselectivity (98% de) but with lower enantioselectivity (56-86% ee). These new reagents provide ready access to a Taxol side chain derivative.
BROWN, HERBERT C.;JADHAV, PRABHAKAR K.;BHAT, KRISHNA S., J. AMER. CHEM. SOC., 110,(1988) N 5, 1535-1538
作者:BROWN, HERBERT C.、JADHAV, PRABHAKAR K.、BHAT, KRISHNA S.