N-Substituent effects on the diethylzinc addition to benzaldehyde catalysed by bicyclic 1,4-amino alcohols
摘要:
Chiral enantiopure bicyclic 1,4-aminoalcohols were synthesised by a new methodology that provided a common precursor, which was easily N-functionalised with a wide variety of substituents. The final compounds were used as chiral ligands in a model study of the enantioselective addition of diethyl zinc to benzaldehyde, aimed at understanding the influence of the N-substituent on both the rate and stereoselectivity of the reaction. This set of experiments also provided interesting insight into the non-catalysed addition that Occurred by employing commercially available Et(2)Zn solutions. (C) 2009 Elsevier Ltd. All rights reserved.
N-Substituent effects on the diethylzinc addition to benzaldehyde catalysed by bicyclic 1,4-amino alcohols
作者:Dina Scarpi、Ernesto G. Occhiato、Antonio Guarna
DOI:10.1016/j.tetasy.2009.01.021
日期:2009.2
Chiral enantiopure bicyclic 1,4-aminoalcohols were synthesised by a new methodology that provided a common precursor, which was easily N-functionalised with a wide variety of substituents. The final compounds were used as chiral ligands in a model study of the enantioselective addition of diethyl zinc to benzaldehyde, aimed at understanding the influence of the N-substituent on both the rate and stereoselectivity of the reaction. This set of experiments also provided interesting insight into the non-catalysed addition that Occurred by employing commercially available Et(2)Zn solutions. (C) 2009 Elsevier Ltd. All rights reserved.