Amino acids as suitable N-nucleophiles for the aza-Michael reaction of vinylphosphoryl compounds in water
作者:Ekaterina V. Matveeva、Anatoly E. Shipov、Pavel V. Petrovskii、Irina L. Odinets
DOI:10.1016/j.tetlet.2011.09.111
日期:2011.12
β-aminophosphonates and β-aminophosphine oxides in excellent yields and of high purity. The approach is equally suitable for the synthesis of both racemic and opticallyactive compounds. In the case of glycine, the mono and bis(phosphonoethyl)-substituted products are formed in 6:4 ratio and when using a stoichiometric amount of the reactants, N,N-bis[2-(diethoxyphosphoryl)ethyl]glycine was the only product
A Practical and Efficient Green Synthesis of β-Aminophosphoryl Compounds via the Aza-Michael Reaction in Water
作者:Ekaterina V. Matveeva、Anatoly E. Shipov、Irina L. Odinets
DOI:10.1080/10426507.2010.511358
日期:2011.3.31
as a solvent (without any cosolvent) promotes the aza-Michael reaction of diethyl vinylphosphonate and diphenylvinylphosphine oxide with a wide range of N-nucleophiles. The solubility of the starting phosphorus substrate in water does not play a crucial role in the reaction course, decreasing to some extent the reaction rate. The reaction can be performed either at room temperature or under reflux to