14387-21-4Relevant articles and documents
Rhodium-catalyzed asymmetric hydrogenation of β-cyanocinnamic esters with the assistance of a single hydrogen bond in a precise position
Li, Xiuxiu,You, Cai,Yang, Yusheng,Yang, Yuhong,Li, Pan,Gu, Guoxian,Chung, Lung Wa,Lv, Hui,Zhang, Xumu
, p. 1919 - 1924 (2018/02/23)
With the assistance of hydrogen bonds, the first asymmetric hydrogenation of β-cyanocinnamic esters is developed, affording chiral β-cyano esters with excellent enantioselectivities (up to 99% ee). This novel methodology provides an efficient and concise synthetic route to chiral GABA-derivatives such as (S)-Pregabalin, (R)-Phenibut, (R)-Baclofen. Interestingly, in this system, the catalyst with a single H-bond donor performs better than that with double H-bond donors, which is a novel discovery in the metalorganocatalysis area.
A short, chemoenzymatic route to chiral β-aryl-γ-amino acids using reductases from anaerobic bacteria
Fryszkowska, Anna,Fisher, Karl,Gardiner, John M.,Stephens, Gill M.
supporting information; experimental part, p. 533 - 535 (2010/05/11)
A short chemoenzymatic synthesis of β-aryl-γ-aminobutyric acids has been developed, based on a highly enantioselective biocatalytic reduction of β-aryl-β-cyano-α,β-unsaturated carboxylic acids.
