Design and synthesis of a tridentate ligand inspired by the phenomenon of self-assembly catalysis and its application in the asymmetric alkynylation of N-(diphenylphosphinoyl) imines
摘要:
On the basis of the phenomenon of self-assembly catalysis, a tridentate ligand was designed and synthesized in two steps. The application in alkynylation of N-(diphenylphosphinoyl) imines gave the expected products. Aromatic, heteroaromatic N-(diphenylphosphinoyl) imines were employed and gave optically active propargylic amines in good yields (up to 89%) and excellent enantioselectivities (up to 96%) by a simple experimental procedure. The direct use of sulfone amides in the alkynylation of N-(diphenylphosphinoyl) aliphatic imines made this method very attractive. (C) 2010 Elsevier Ltd. All rights reserved.
Homochiral Amine Oxides in the Enantioselective Reduction of Ketones
作者:Ian O'Neil、Carl Turner、S. Kalindjian
DOI:10.1055/s-1997-5770
日期:1997.7
The synthesis of a number of novel homochiral prolinol N-oxide derivatives is described. Several of these were found to catalyse the borane reduction of α-chloroacetophenone to (S)-2-chloro-1-phenylethanol in excellent chemical yield and in 96% ee.
Design and synthesis of a tridentate ligand inspired by the phenomenon of self-assembly catalysis and its application in the asymmetric alkynylation of N-(diphenylphosphinoyl) imines
作者:Wenjin Yan、Peng Li、Jingchao Feng、Dong Wang、Shaoqun Zhu、Xianxing Jiang、Rui Wang
DOI:10.1016/j.tetasy.2010.07.020
日期:2010.8
On the basis of the phenomenon of self-assembly catalysis, a tridentate ligand was designed and synthesized in two steps. The application in alkynylation of N-(diphenylphosphinoyl) imines gave the expected products. Aromatic, heteroaromatic N-(diphenylphosphinoyl) imines were employed and gave optically active propargylic amines in good yields (up to 89%) and excellent enantioselectivities (up to 96%) by a simple experimental procedure. The direct use of sulfone amides in the alkynylation of N-(diphenylphosphinoyl) aliphatic imines made this method very attractive. (C) 2010 Elsevier Ltd. All rights reserved.