120236-20-6Relevant articles and documents
DIOPHEP, a chiral diastereoisomeric bisphosphine ligand: synthesis and applications in asymmetric hydrogenations
Cesarotti, Edoardo,Abbiati, Giorgio,Rossi, Elisabetta,Spalluto, Paola,Rimoldi, Isabella
, p. 1654 - 1659 (2008)
Novel optically active diphosphine ligands, known as DIOPHEP, have been designed and synthesized starting from a derivative of tartaric acid. The ligands conjugate the sp3 chirality of the precursor of DIOP with the atropisomeric chirality of a biaryl scaffold. The stereorecognition abilities of DIOPHEP-Ru complex catalysts have been investigated in the asymmetric catalytic hydrogenation of some standard substrates suggesting a close relationship between dihedral angles and enantioselectivity.
Dynamic kinetic resolution of β′-keto-β-amino esters using Ru-DTBM-Sunphos catalyzed asymmetric hydrogenation
Li, Xiaoming,Tao, Xiaoming,Ma, Xin,Li, Wanfang,Zhao, Mengmeng,Xie, Xiaomin,Ayad, Tahar,Ratovelomanana-Vidal, Virginie,Zhang, Zhaoguo
, p. 7152 - 7156 (2013/07/26)
A convenient method for the enantioselective synthesis of β′-hydroxy-β-amino esters was developed through intensive investigations of the reaction conditions. Dichloromethane (DCM)/2,2,2- trifluoroethanol (TFE) and 1,2-dichloroethane (DCE)/TFE combination