APPLICATION OF THE IRIDIUM COMPLEX IN ASYMMETRIC CATALYTIC HYDROGENATION FOR UNSATURATED CARBOXYLIC ACID
申请人:Zhejiang Jiuzhou Pharmaceutical Co., Ltd.
公开号:EP2275398A1
公开(公告)日:2011-01-19
The present invention relates to a preparation method of carboxylic acids with optical activity, particularly, publishes that very useful chiral carboxylic acids can be obtained by the asymmetric catalytic hydrogenation of tri-substituted α,β-unsaturated carboxylic acids, with the complexes of the chiral phosphor nitrogen ligands and iridium used as the catalysts which show high activity and enantioselectivity (up to 99.8% ee), thus provides a more efficient method with higher enantioselectivity for asymmetric catalytic hydrogenation of chiral carboxylic acid-like compounds, and has important application value to asymmetric hydrogenation of chiral carboxylic acids.
Pd-Catalyzed Regioselective Decarboxylative/C–H α-Alkoxyalkenylation of Heterocycles Using α-Carboxyvinylethers
作者:Jean-Baptiste E. Y. Rouchet、Mahmoud Hachem、Cédric Schneider、Christophe Hoarau
DOI:10.1021/acscatal.7b01330
日期:2017.8.4
A direct introduction of vinyl ethers into C-H bond of heterocycles is reported. For this purpose, decarboxylative direct C-H cross-coupling of 1,3-diazoles with alpha-carboxyvinyl ethers as coupling partners was achieved under Pd(0)/Cu(I) cooperative catalysis to produce various alpha-heteroarylated vinylethers. This methodology was applied to the innovative production of heteroarylated enolizable ketones and naturally occurring bis-oxa(thia)zoles.
Stoermer; Voht, Justus Liebigs Annalen der Chemie, 1915, vol. 409, p. 42
作者:Stoermer、Voht
DOI:——
日期:——
α-Aryloxy and α-Aryl Thiol Cinnamic Acids
作者:Domenick Papa、Erwin Schwenk
DOI:10.1021/ja01204a025
日期:1947.12
Basic derivatives of substituted cinnamic acids and methods of preparing same