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
一锅法合成2-亚芳基-5,6,7,8-四氢噻唑并[3,2-a]环戊烯-噻吩并[2,3-d]嘧啶-3,5-二酮(3)由 2-thioxo-1,3,4,5,6,7-六氢环戊噻吩并 [2,3-d]-4-one (2)、氯乙酸和适当的醛的三元混合物组成。化合物2在乙醇氢氧化钾中与3-氯戊-2,4-二酮反应,产生S-乙酰丙酮衍生物5f。后一化合物与水合肼和苯肼反应产生2-吡唑硫代衍生物10a、b。化合物5f也与乙酸-吡啶溶液加热环化得到11。2-甲硫基衍生物5a用过氧化氢处理得到相应的氧化产物9。