132902-39-7Relevant academic research and scientific papers
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.
CHIRAL LIGANDS CONTAINING HETEROATOMS. 6. 1-(2-PYRIDYLMETHYL)PYRROLIDINE IN THE CHIRAL CATALYSIS OF ADDITION OF DIETHYLZINC TO BENZALDEHYDE
Chelucci, Giorgio,Falorni, Massimo,Giacomelli, Giampaolo
, p. 843 - 849 (2007/10/02)
The synthesis of a series of new optically active pyridine ligands from proline derivatives has been developed for the enantioselective addition of dialkyl zinc compounds to aldehydes.The results obtained indicate that the corrdination of a metal atom to the nitrogen of the pyridine ring is essential in determining the stereochemistry of the process.
