Zinc Di(l-prolinate)-Mediated Synthesis of α-Aminophosphonates under Mild Conditions
作者:Nelson Domingues、Aline de Oliveira、Ramesh Katla、Mariana Rocha、Tábata Albuquerque、Caren da Silva、Vicente Kupfer、Andrelson Rinaldi
DOI:10.1055/s-0036-1588065
日期:——
Abstract An efficient method has been developed for the preparation of α-aminophosphonates by using zinc di(l-prolinate) as a catalyst under mild reaction conditions. The method has the advantages of high yields, short reaction times, and easy workup conditions. An efficient method has been developed for the preparation of α-aminophosphonates by using zinc di(l-prolinate) as a catalyst under mild reaction
A new, efficient and recyclable [Ce(<scp>l</scp>-Pro)]<sub>2</sub>(Oxa) heterogeneous catalyst used in the Kabachnik–Fields reaction
作者:Caren D. G. da Silva、Aline R. Oliveira、Mariana P. D. Rocha、Ramesh Katla、Eriton Rodrigo Botero、Érica C. da Silva、Nelson Luís C. Domingues
DOI:10.1039/c5ra27064b
日期:——
Herein we introduce a new catalyst for the Kabachnik–Fields reaction, [Ce(L-Pro)]2(Oxa), using a very accessible, simple and efficient methodology for α-aminophosphonate synthesis using an aromatic aldehyde, an aromaticamine and diphenyl phosphite. This procedure was developed using a low catalyst loading of cerium(III) prolinate and it has allowed for the recycling of the catalyst.
Abstract For the first time, α-aminophosphonates were obtained by a simple and efficient one-pot method from the reaction between aldehyde, aniline, and triphenylphosphite in the presence of acetic acid as a catalyst and solvent at room temperature. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements
A green and efficient procedure for the synthesis of α-aminophosphonates has been developed in water as a green and nonhazardous solvent, from condensation between aromatic aldehydes, aniline, and triphenyl phosphite at 80°C. This methodology has a number of advantages including clean reaction conditions, easy work-up, and environmentally friendly.
Synthesis of α-aminophosphonates using solvate ionic liquids
作者:Daniel J. Eyckens、Luke C. Henderson
DOI:10.1039/c7ra04407k
日期:——
A range of α-aminophosphonates were accessed in high yields and very rapidly, using solvate ionicliquids as the reaction media. Reactions typically required less than 10 minutes to go to completion and precipitation of these products into water excludes the use of traditional work up procedures, giving the products in very high crude purity. Excellent functional group tolerance for both the aldehyde