Rearrangement of N-alkyl 1,2-amino alcohols. Synthesis of (S)-toliprolol and (S)-propanolol
摘要:
N-alkyl 1,2-amino alcohols were rearranged stereospecifically by using TFAA/Et3N. This rearrangement has been used to synthesize N-isopropyl-3-(aryloxy)-2-hydroxypropylamines, beta-adrenergic blocking agents such as (S)-toliprolol and (S)-propanolol. (C) 2009 Elsevier Ltd. All rights reserved.
Rearrangement of N-alkyl 1,2-amino alcohols. Synthesis of (S)-toliprolol and (S)-propanolol
摘要:
N-alkyl 1,2-amino alcohols were rearranged stereospecifically by using TFAA/Et3N. This rearrangement has been used to synthesize N-isopropyl-3-(aryloxy)-2-hydroxypropylamines, beta-adrenergic blocking agents such as (S)-toliprolol and (S)-propanolol. (C) 2009 Elsevier Ltd. All rights reserved.
Design of a Genetic Algorithm for the Simulated Evolution of a Library of Asymmetric Transfer Hydrogenation Catalysts
作者:Nicolas Vriamont、Bernadette Govaerts、Pierre Grenouillet、Claude de Bellefon、Olivier Riant
DOI:10.1002/chem.200802192
日期:2009.6.15
Breeding newcatalysts: A library of 1980 catalysts was designed for asymmetrichydrogentransfer to acetophenone. The library was submitted to evaluation and further simulated evolution experiments, based on a genetic algorithm (see scheme). We demonstrated that it was easily possible to get 5–6 of the ten best catalysts, while investigating only 10% of the library.
N-alkyl 1,2-amino alcohols were rearranged stereospecifically by using TFAA/Et3N. This rearrangement has been used to synthesize N-isopropyl-3-(aryloxy)-2-hydroxypropylamines, beta-adrenergic blocking agents such as (S)-toliprolol and (S)-propanolol. (C) 2009 Elsevier Ltd. All rights reserved.