Rh-catalyzed enantioselectivehydrogenation of oxime acetates was first reported, which afforded a new approach for chiral amine synthesis.
首次报道了肟肟乙酸酯的Rh催化对映选择性氢化,为手性胺的合成提供了一种新方法。
Amine dehydrogenases: efficient biocatalysts for the reductive amination of carbonyl compounds
作者:Tanja Knaus、Wesley Böhmer、Francesco G. Mutti
DOI:10.1039/c6gc01987k
日期:——
Amines constitute the major targets for the production of a plethora of chemical compounds that have applications in the pharmaceutical, agrochemical and bulk chemical industries. However, the asymmetric synthesis of...
Development of a new class of C1-symmetric bisphosphine ligands for rhodium-catalyzed asymmetric hydrogenation
作者:Qian Dai、Wei Li、Xumu Zhang
DOI:10.1016/j.tet.2008.03.110
日期:2008.7
A newclass of C1-symmetric bisphosphine ligands with three hindered quadrants have been obtained through facile synthesis from chiral BINOL derivatives. Their rhodium complexes have exhibited high enantioselectivities (up to 98% ee) in the asymmetric hydrogenation of various unsaturated prochiral olefins, providing an efficient catalytic system for the enantioselective synthesis of chiral amino acids
Practical Enantioselective Hydrogenation of α-Aryl- and α-Carboxyamidoethylenes by Rhodium(I)-{1,2-Bis[(<i>o</i>-<i>tert</i>-butoxyphenyl)(phenyl)phosphino]ethane}
作者:Barbara Mohar、Michel Stephan
DOI:10.1002/adsc.201200780
日期:——
The rhodium(I)-1,2-bis[(o-tert-butoxyphenyl)(phenyl)phosphino]ethane} [Rh(I)-(t-Bu-SMS-Phos)] catalyst system displayed prime efficiency in the hydrogenation of large series of α-amidostyrenes and α-amidoacrylates. Up to >99.9% enantiomeric excesses coupled with very high reaction rates were attained operating routinely under 1–10 bar of hydrogen at 22 °C in methanol. Examples include industrial substrates
Six-membered bis(azaphosphorinane), readily available ligand for highly enantioselective asymmetric hydrogenations
作者:Yongjun Yan、Xumu Zhang
DOI:10.1016/j.tetlet.2006.01.003
日期:2006.3
A new six-membered bis(azaphosphorinane) ligand has been readily prepared starting from an inexpensive chiral epoxide; excellent enantioselectivities (up to over 99% ee) have been achieved in the Rh-catalyzed asymmetric hydrogenations of β-dehydroamino acid derivatives and α-arylenamides.