A rapid and convenient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2-ones and thiones
摘要:
A rapid and convenient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2-ones and thiones was developed. The reaction involves a one-pot reaction between oxalacetic acid, thiourea/urea, and aldehyde under microwave irradiation and provides the products in good yields and much shorter reaction times. (C) 2010 Elsevier Ltd. All rights reserved.
method for the one‐pot synthesis of the biologically important heterocyclicmolecules 5‐unsubstituted 3,4‐dihydropyrimidin‐2‐ones and thiones using gem‐dibromomethylarenes, oxalacetic acid, and urea or thiourea. Gem‐dibromomethylarenes are used as aldehyde equivalent for the efficient synthesis of 3,4‐dihydropyrimidin‐2‐ones/thiones. This reaction offers advantages for the synthesis of these compounds
A rapid and convenient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2-ones and thiones
作者:Zhanxiong Fang、Yulin Lam
DOI:10.1016/j.tet.2010.11.075
日期:2011.2
A rapid and convenient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2-ones and thiones was developed. The reaction involves a one-pot reaction between oxalacetic acid, thiourea/urea, and aldehyde under microwave irradiation and provides the products in good yields and much shorter reaction times. (C) 2010 Elsevier Ltd. All rights reserved.