Ru-SYNPHOS<sup>®</sup>and Ru-DIFLUORPHOS<sup>®</sup>: Highly Efficient Catalysts for Practical Preparation of β-Hydroxy Amides
作者:Virginie Ratovelomanana-Vidal、Béchir Ben Hassine、Jean-Pierre Genet、Ridha Touati、Thouraya Gmiza、Séverine Jeulin、Coralie Deport
DOI:10.1055/s-2005-917089
日期:——
Ru-SYNPHOS® and Ru-DIFLUORPHOS® catalysts were efficiently used for the synthesis of a wide variety of chiral β-hydroxy amides via asymmetric hydrogenation of the corresponding β-keto amides.
Organocatalytic Enantioselective Decarboxylative Aldol Reaction of Malonic Acid Half Thioesters with Aldehydes
作者:Han Yong Bae、Jae Hun Sim、Ji-Woong Lee、Benjamin List、Choong Eui Song
DOI:10.1002/anie.201306297
日期:2013.11.11
Copycat: A highly enantioselective biomimetic aldol reaction of malonicacid half thioesters with a variety of aldehydes affords optically active β‐hydroxy thioesters by employing the cinchona‐derived sulfonamide organocatalyst 1. The synthetic utility of this protocol was demonstrated by performing formal syntheses of the antidepressants (R)‐fluoxetine, (R)‐tomoxetine, (−)‐paroxetine, and (R)‐duloxetine
The synthesis of a chiral fluoxetine intermediate by catalytic enantioselective hydrogenation of benzoylacetamide
作者:Hsiang-Ling Huang、Lee Tai Liu、Shyh-Fong Chen、Hao Ku
DOI:10.1016/s0957-4166(98)00158-x
日期:1998.5
In the presence of a chiral BINAP-ruthenium(II) catalyst, asymmetric hydrogenation of beta-keto propanoic acid N-methyl amide under 200 psi of hydrogen pressure furnished the corresponding 3-hydroxypropanoic acid N-methyl amide as the single enantiomer. The product can be used as an intermediate for chiral fluoxetine. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.