147189-93-3Relevant articles and documents
Palladium/Zinc Co-Catalyzed Asymmetric Hydrogenation of γ-Keto Carboxylic Acids
Zhang, Keyang,Zhang, Xuexin,Chen, Jingchao,Liu, Zixiu,Pan, Chunxiang,Zhu, Yuanbin,Wu, Shiyuan,Fan, Baomin
, p. 1229 - 1232 (2021)
A palladium-catalyzed asymmetric hydrogenation of levulinic acid has been successful developed by using Zn(OTf)2 as co-catalyst. The present method not only has provided a strategy in the palladium-catalyzed asymmetric hydrogenation of ketone, but also allowed the preparation of a wide range of chiral γ-valerolactones in good yields with excellent enantioselectivities.
Asymmetric hydrogenation reaction γ - or δ - ketonato compound (by machine translation)
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Paragraph 0068-0074, (2020/03/06)
The invention relates to the field, of organic chemistry, specifically γ - or δ - keto acid compound asymmetric hydrogenation reaction, reaction formula as follows : Wherein R is H,C. 1 - C6 An alkyl or halogen, is R 1 - 5 in number of substituents . wherein n is 1 or 2;Cat. is a chiral spiro pyrimidyl phosphine ligand iridium complex . and γ - or δ - keto acid compound is subjected to an internal esterification reaction to further prepare a lactone compound. (by machine translation)
Chemo-enzymatic synthesis of (R)- and (S)-3,4-dichlorophenylbutanolide intermediate in the synthesis of sertraline
Barbieri, Cinzia,Caruso, Enrico,D'Arrigo, Paola,Pedrocchi Fantoni, Giuseppe,Servi, Stefano
, p. 3931 - 3937 (2007/10/03)
3,4-Dichlorophenacylchloride was reduced with whole cell biocatalysts to give the (R)- or (S)-chlorohydrine in high yields and good to high enantiomeric excess. Yields and enantiomeric purity of the (S)-enantiomer were increased to 95 and >98%, respective