Highly Enantioselective Iridium-Catalyzed Hydrogenation of Conjugated Trisubstituted Enones
作者:Bram B. C. Peters、Jira Jongcharoenkamol、Suppachai Krajangsri、Pher G. Andersson
DOI:10.1021/acs.orglett.0c04012
日期:2021.1.1
Asymmetric hydrogenation of conjugated enones is one of the most efficient and straightforward methods to prepare optically active ketones. In this study, chiral bidentate Ir–N,P complexes were utilized to access these scaffolds for ketones bearing the stereogenic center at both the α- and β-positions. Excellent enantiomeric excesses, of up to 99%, were obtained, accompanied with good to high isolated
Kinetic study of microwave-assisted Wittig reaction of stabilised ylides with aromatic aldehydes
作者:Sara Frattini、Monica Quai、Enzo Cereda
DOI:10.1016/s0040-4039(01)01384-3
日期:2001.9
The Wittigreaction of a pool of stabilisedylides and aromatic aldehydes was carried out in a microwave oven. Only a few minutes were needed for high conversion rates under microwave heating in comparison to hour time with traditional methods.
A novel catalytic decarbonylative Heck-type reaction and conjugate addition of aldehydes to unsaturated carbonyl compounds
作者:Luo Yang、Camille A. Correia、Xiangyu Guo、Chao-Jun Li
DOI:10.1016/j.tetlet.2010.08.040
日期:2010.10
A novel rhodium-catalyzed decarbonylative reaction of aldehydes with unsaturated carbonylcompounds was discovered to generate Heck-type reaction product and conjugate addition product.
Method for preparing ortho-substituted aminoferrocenes
申请人:Brock University
公开号:US07982064B2
公开(公告)日:2011-07-19
The present disclosure relates to a method for preparing an ortho-substituted aminoferrocene comprising reacting an aminoferrocene with a Lewis acid and a lithiating reagent in the presence of an electrophile to form the ortho-substituted aminoferrocene.