Novel, Efficient, and Green Procedure for the Knoevenagel Condensation Catalyzed by Diammonium Hydrogen Phosphate in Water
- 1 December 2006
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 36 (24) , 3703-3711
Abstract
Knoevenagel condensation of various aromatic and heteroaromatic aldehydes with active methylene compounds such as methyl and ethyl cyanoacetate, malononitrile, and cyanoacetamide proceeds smoothly with stirring in water in the presence of 4 mol% of diammonium hydrogen phosphate. The reactions were carried out at room temperature in short periods with a very simple workup procedure and good to high yields.Keywords
This publication has 36 references indexed in Scilit:
- An Efficient and Green Procedure for the Knoevenagel Condensation Catalyzed by UreaChinese Journal of Chemistry, 2005
- Synthesis of Arylmethylenemalononitriles Catalyzed by KF–Al2O3 under UltrasoundAustralian Journal of Chemistry, 2005
- Phosphane‐Catalyzed Knoevenagel Condensation: A Facile Synthesis of α‐Cyanoacrylates and α‐CyanoacrylonitrilesEuropean Journal of Organic Chemistry, 2004
- An Efficient Knoevenagel Condensation Catalyzed by LaCl3.7H2O in Heterogeneous Medium#Synthetic Communications, 2003
- Organic Reactions in Ionic Liquids: Knoevenagel Condensation Catalyzed by Ethylenediammonium DiacetateSynthesis, 2003
- ONE-POT PREPARATION OF COUMARINS BY KNOEVENAGEL CONDENSATION IN SOLVENT-FREE CONDITION UNDER MICROWAVE IRRADIATIONHeterocyclic Communications, 2001
- Knoevenagel Condensation Catalyzed by USY ZeoliteSynthetic Communications, 1997
- Lithium bromide as a new catalyst for carbon–carbon bond formation in the solid stateJournal of the Chemical Society, Perkin Transactions 1, 1996
- The Knoevenagel Reaction1991
- Knoevenagel condensation in the heterogeneous phase using aluminum phosphate-aluminum oxide as a new catalystThe Journal of Organic Chemistry, 1984