[Et3NH][HSO4]-catalyzed one-pot, solvent-free synthesis and biological evaluation of α-amino phosphonates
作者:Mubarak H. Shaikh、Dnyaneshwar D. Subhedar、Firoz A. Kalam Khan、Jaiprakash N. Sangshetti、Bapurao B. Shingate
DOI:10.1007/s11164-015-2348-z
日期:2016.5
Abstract A series of dimethyl (phenyl(phenylamino)methyl)phosphonates and novel dimethyl ((phenylamino)(2-(prop-2-yn-1-yloxy)phenyl)methyl)phosphonates as potential antifungal agents were synthesized via one-pot, three-component condensation of aldehydes, amines and trimethyl phosphite in solvent-freeconditions using [Et3NH][HSO4] as an efficient, eco-friendly and reusable catalyst. Compared to other
Sodium Dihydrogen Phosphate as an Efficient Catalyst for One-Pot, Three-Component Synthesis of <font>α</font>-Aminophosphonates Under Solvent-Free Conditions at Room Temperature
and general method has been developed for the one-pot, three-component synthesis of α-aminophosphonates from a condensation reaction of trimethyl phosphite, aldehydes, and amines in the presence of sodium dihydrogen phosphate under solvent-free conditions. Thus, α-aminophosphonates were synthesized relatively quickly in good yields at roomtemperature.
Cd(ClO4)2∙xH2O as a novel catalyst for the synthesis of α-aminophosphonates under solvent-free conditions
作者:Someshwar D. Dindulkar、Mudumala Veeranarayana Reddy、Yeon Tae Jeong
DOI:10.1016/j.catcom.2011.10.025
日期:2012.1
we report cadmium perchlorate hydrate to be an novel, expeditious catalyst for the three-component one-pot reaction of an amine, an aldehyde and a H-phosphonate diesters in open air without any solvent, leads to α-aminophosphonates in excellent yields. To the best of our knowledge this finding is the first example of a cadmium perchlorate hydrate catalyzedKabachnik-Fieldsreaction.
Polyaniline containing methanesulfonic acid dopant in semi crystalline with nano fiber morphology was synthesized easily in one step with excellent yield (1.26 g with respect to 1 g of aniline used), pellet density (1.32 g/cm(3)), and reasonably good conductivity (8.6 S/cm). PANI-MSA, formed in organic carrier solvent in the polymerization reaction, was coated on glass slide/glass rod/stainless steel sheet and used as novel reusable polymer based solid add catalyst in the synthesis of alpha-aminophosphonates with excellent yields and the same glass slide was used for the preparation of various alpha-aminophosphonates. (C) 2013 Elsevier B.V. All rights reserved.