329015-59-0Relevant academic research and scientific papers
New P-stereogenic triaminophosphines and their derivatives: Synthesis, structure, conformational study, and application as chiral ligands
Toselli, Nicolas,Fortrie, Remy,Martin, David,Buono, Gerard
experimental part, p. 1238 - 1245 (2010/11/02)
The synthesis, structural, and conformational studies of new P-chiral triaminophosphines, which feature an indolidine and a 1,2,3,4- tetrahydroquinolidine pattern, respectively, are reported. These compounds can feature very different 3D-structures, although they both could be seen a priori as close derivatives of the previously reported 3-phenyl-1,3-diaza-2- phosphabicyclo[3.3.0]octane. The consequences for the use of such compounds and their derivatives in asymmetric metal-catalysis are discussed on the basis of preliminary results in asymmetric cobalt-catalyzed [6+2] cycloaddition.
Catalytic asymmetric borane reduction of prochiral ketones by the use of diazaborolidine catalysts prepared from chiral β-diamines
Sato, Shinsuke,Watanabe, Hiroyasu,Asami, Masatoshi
, p. 4329 - 4340 (2007/10/03)
The catalytic asymmetric borane reduction of prochiral ketones was examined in the presence of chiral diazaborolidine catalysts prepared in situ from chiral β-diamines and borane. Chiral secondary alcohols were obtained with modest to high enantiomeric excesses (up to 92% ee) using (S)-2-[(4-trifluoromethyl)anilinomethyl]indoline 2f. (C) 2000 Elsevier Science Ltd.
