146137-33-9Relevant academic research and scientific papers
Palladium-Catalyzed Diastereoselective Synthesis of 3-Arylbutanoic Acid Derivatives
Zhi, Wubin,Li, Jingya,Zou, Dapeng,Wu, Yusheng,Wu, Yangjie
, p. 12286 - 12293 (2017/12/08)
The first palladium-catalyzed diastereoselective conjugate addition of arylboronic acids to chiral imides is reported. The catalytic system employing 4-tert-butyloxazolidin-2-one as the chiral auxiliary in a mixed solvent system of MeOH/H2O (1:3) under an air atmosphere provides the optically active 3-arylbutanoic acid derivatives in excellent yields with high diastereoselectivity.
Diastereoselective copper-catalysed 1,4-addition of Grignard reagents to N-enoyl oxazolidinones
Drusan, Michal,Galestokova, Zuzana,Sebesta, Radovan
, p. 9881 - 9888 (2013/09/02)
Conjugate additions of organometallic reagents to α,β- unsaturated carboxylic acid derivatives give access to numerous β-substituted chiral building blocks. Chiral oxazolidinones serve as useful surrogates of carboxylic function in the asymmetric conjugate addition of Grignard reagents. N-Enoyl oxazolidinones undergo this 1,4-addition with a catalytic amount of copper salt and using either chiral or achiral phosphine ligands. In particular, chiral ferrocenyl phosphane oxazolines proved useful in achieving high diastereoselectivities. The resulting N-acyl oxazolidinones were obtained in good yields and with high diastereoselectivities (up to single diastereomer).
Diastereoselection in the conjugate additions of organocopper reagents to N-enoyloxazolidinones
Williams, David R.,Kissel, William S.,Li, Jie Jack
, p. 8593 - 8596 (2007/10/03)
A survey of conjugate additions of Yamamoto organocopper reagents to N- enoyl-4-substituted oxazolidinones is reported. Diastereofacial selectivity is reversed for 4-phenyl and 4-benzyloxazolidinones of the same relative configuration. Alkenylcopper reage
Exploration for Large-scale Stereoselective Synthesis of Unusual Amino Acids by using 4-Phenyoxazolidin-2-one as a New Chiral Resolution Reagent
Li, Guigen,Patel, Dinesh,Hruby, Victor J.
, p. 3057 - 3060 (2007/10/02)
Individual isomers of β-branched α-amino acids have been stereoselectively and asymmetrically synthesized in high yield by a new method which uses 4-phenyloxazolidin-2-one as a novel chiral resolution reagent acting simultaneously as the auxiliary.
Diastereospecific tandem Michael-like addition/electrophilic bromination: A one-pot tandem asymmetric synthesis of precursors of unusual amino acids
Li,Jarosinski,Hruby
, p. 2561 - 2564 (2007/10/02)
A systematic series of key intermediates of unusual β-methyl-amino acids have been synthesized by using a modified Evans auxiliary in an asymmetric Michael-like reaction followed by direct bromination in a one-pot reaction.
