Facile Syntheses of Some Thieno[2,3-d] Pyrimidine Derivatives
作者:A. S. Aly、Kh. M. Abu-Zied、Alaa El-Din M. Gaafar
DOI:10.1080/10426500802059984
日期:2008.11.7
one-pot synthesis 2-arylidene-5,6,7,8-tetrahydrothiazolo[3,2-a] cyclopenteno-thieno[2,3-d] pyrimidine-3,5-diones (3) were prepared via the reaction of a ternary mixture of 2-thioxo-1,3,4,5,6,7-hexahydr cyclopentinothieno [2,3-d]-4-one (2), chloroacetic acid and a proper aldehyde. Compound 2 reacted with 3-chloropent-2, 4-dione in ethanolic potassium hydroxide yielding the S-acetyl acetone derivative 5f