Enantioselective hydrogenation of β-keto sulfones with chiral Ru(II)-catalysts: synthesis of enantiomerically pure butenolides and γ-butyrolactones
摘要:
A series of beta-hydroxy sulfones were synthesized with high enantioselectivities via a new enantioselective ruthenium-catalyzed hydrogenation using MeO-BIPHEP as a ligand. Some beta-hydroxy sulfones were used in the synthesis of optically active butenolides and gamma-butyrolactones with high yields and enantioselectivities over 95%. (C) 1999 Elsevier Science Ltd. All rights reserved.
Enantioselective hydrogenation of β-keto sulfones with chiral Ru(II)-catalysts: synthesis of enantiomerically pure butenolides and γ-butyrolactones
摘要:
A series of beta-hydroxy sulfones were synthesized with high enantioselectivities via a new enantioselective ruthenium-catalyzed hydrogenation using MeO-BIPHEP as a ligand. Some beta-hydroxy sulfones were used in the synthesis of optically active butenolides and gamma-butyrolactones with high yields and enantioselectivities over 95%. (C) 1999 Elsevier Science Ltd. All rights reserved.
A new ruthenium-promoted hydrogenation of β-keto sulfones using MeO-BIPHEP as ligand is reported with complete conversions and enantiomeric excesses over 95%.
Enantioselective bioreduction of β-keto sulfones with the fungus Curvularia lunata
作者:Vicente Gotor、Francisca Rebolledo、Ramón Liz
DOI:10.1016/s0957-4166(01)00048-9
日期:2001.3
beta -Keto sulfones bearing bulky groups are reduced with high enantioselectivities to the corresponding optically active beta -hydroxy sulfones by the fungus Curvularia lunata CECT 2130; the cells can be re-used without loss of their catalytic activity. (C) 2001 Published by Elsevier Science Ltd.
Enantioselective hydrogenation of β-keto sulfones with chiral Ru(II)-catalysts: synthesis of enantiomerically pure butenolides and γ-butyrolactones
A series of beta-hydroxy sulfones were synthesized with high enantioselectivities via a new enantioselective ruthenium-catalyzed hydrogenation using MeO-BIPHEP as a ligand. Some beta-hydroxy sulfones were used in the synthesis of optically active butenolides and gamma-butyrolactones with high yields and enantioselectivities over 95%. (C) 1999 Elsevier Science Ltd. All rights reserved.