An efficient and simple method for the synthesis of new benzopyranopyrimidines via a pseudo four-component reaction of salicylic aldehydes, malononitrile and various amines in the presence of a catalytic amount of LiClO(4) is reported. The advantages of this procedure are mild reaction conditions, high yields of products and operational simplicity. (C) 2010 Elsevier Ltd. All rights reserved.
Use of Sodium Molybdate Dihydrate as an Efficient Heterogeneous Catalyst for the Synthesis of Benzopyranopyrimidine Derivatives
作者:Majid M. Heravi、Masoumeh Zakeri
DOI:10.1080/15533174.2012.740717
日期:2013.2.1
Sodium molybdate dihydrate (Na2MoO4.2H2O) has been investigated as a heterogeneous catalyst for the one-pot pseudofour-component synthesis of the benzopyranopyrimidine derivatives. This efficient and facile technique avoids the use of difficult workup and harsh reaction conditions.
Shaikh; Patil; Gaikwad, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2014, vol. 53B, # 10, p. 1288 - 1294