1268854-58-5Relevant articles and documents
Biginelli-type reaction: Efficient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2-ones and thiones from gem-dibromomethylarenes
Kambappa, Vinaya,Ganganahalli Kotturappa, Chandrashekara,Sheshachar Manjunath, Raghavendra,Doddakunche Shivaramu, Prasanna
, p. 3475 - 3482 (2020)
In the present study, we are reporting a simple and efficient method for the one-pot synthesis of the biologically important heterocyclic molecules 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, including ready availability of the starting materials, experimental simplicity and in good yields. Besides, the synthesized molecules are interesting for their biological and pharmacological actions.
A rapid and convenient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2- ones and thiones
Fang, Zhanxiong,Lam, Yulin
experimental part, p. 1294 - 1297 (2011/04/12)
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