Efficient one-pot synthesis of β-phosphono malonates and 2-amino-4H-chromen-4-ylphosphonate derivatives by ethylenediamine diacetate-catalyzed three-component reactions
作者:Srinivasa Rao Kolla、Yong Rok Lee
DOI:10.1016/j.tet.2011.10.060
日期:2012.1
One-pot three-component reactions of arylaldehyde or salicylaldehyde with malononitrile (or ethyl-cyanoacetate) and triethyl phosphite are carried out in the presence of ethylenediamine diacetate (EDDA) as a catalyst for the synthesis of biologically interesting beta-phosphono malonates and 2-amino-4H-chromen-4-ylphosphonate derivatives. The value of this method lies in its mild reaction catalyst and conditions, good yields, and ease of handling. (C) 2011 Elsevier Ltd. All rights reserved.
Nanosized zinc oxide as a catalyst for the rapid and green synthesis of β-phosphono malonates
作者:Mona Hosseini-Sarvari、Samane Etemad
DOI:10.1016/j.tet.2008.03.095
日期:2008.6
The design and development of a nano heterogeneous catalyst for the direct addition of P(O)-H bonds across various alkylidenes under solvent-free conditions is described. This is a mild, rapid, and efficient protocol to generate P-C bonds. (C) 2008 Elsevier Ltd. All rights reserved.