132902-42-2Relevant articles and documents
Asymmetric henry reaction catalyzed by a chiral Cu(II) complex: A facile enantioselective synthesis of (S)-2-nitro-1-arylethanols
Reddy, Basi V. Subba,Reddy, Sankham Madhusudana,Manisha, Swain,Madan, Chinnala
experimental part, p. 530 - 535 (2011/06/17)
A catalytic asymmetric Henry reaction has been developed using a novel chiral Cu(II) complex derived from (R)-2-(diphenylmethanol)-l-(2-pyridylmethyl) pyrrolidine and copper(II) acetate in ethanol under mild conditions. The corresponding chiral 2-nitro-1-
Asymmetric Cyanosilylation of Ketones Catalyzed by Bifunctional Chiral N-Oxide Titanium Complex Catalysts
Shen, Yongcun,Feng, Xiaoming,Li, Yan,Zhang, Guolin,Jiang, Yaozhong
, p. 129 - 137 (2007/10/03)
A new bifunctional catalytic system based on chiral N-oxide titanium complexes has been used for the asymmetric cyanosilylation of ketones. Screening of a variety of chiral N-oxide metal complexes resulted in (1R,2S)-1-(2'-pyridylmethyl)-2-(diphenylhydroxymethyl)pyrrolidine N-oxide titanium complex, which gave O-TMS cyanohydrins in good yields with enantiometric excesses of up to 69 percent. A catalytic cycle based on experimental phenomena and studies was proposed to explain the origin of the asymmetric induction.
Asymmetric Catalysis, Part 91: Enantioselective Monophenylation of cis-1,2-Cyclopentanediol with Triphenylbismuth Diacetate and Chiral Copper(II) Complexes as Catalysts
Brunner, H.,Chuard, T.
, p. 1293 - 1300 (2007/10/02)
The monophenylation of cis-1,2-cyclopentanediol with triphenylbismuth diacetate in the presence of chiral Cu(II) complexes as catalysts gave cis-2-hydroxy-1-phenoxy-cyclopentane with enantiomeric excesses up to 38percent.The optically active ligands used were triamine derivatives of 2,6-bis(aminomethyl)pyridine and diamine derivatives of 2-(aminomethyl)pyridine.Selectivity in the monophenylation occurred only in the presence of the latter as auxiliary ligands. - Keywords.Enantioselective catalysis; Chiral Cu(II) complexes; Monophenylation; Triphenylbismuth diacetate; cis-1,2-Cyclopentanediol.