作者:Magdy Ahmed Ibrahim、Mohamed Abdel-Megid Abdel-Hamed、Naser Mohamed El-Gohary
DOI:10.1590/s0103-50532011000600019
日期:——
thiazolidine-2,4-dione (2) afforded 5-[4-oxo-4H-chromen-3-yl)methylene]-1,3-thiazolidine-2,4-dione (3). Reaction of 3 with hydrazine hydrate, phenyl hydrazine and hydroxylamine hydrochloride gave the corresponding pyrazole and isoxazole derivatives 4-7. Compound 3 was subjected to react with thiourea, guanidine and cyanoguanidine to give the corresponding pyrimidine derivatives 8-10. Pyrimido[1,2-a]pyrimidine 12
3-甲酰基色酮(1)与噻唑烷-2,4-二酮(2)的缩合得到5- [4-氧代-4H-铬-3-基)亚甲基] -1,3-噻唑烷-2,4-二酮( 3)。3与水合肼,苯肼和盐酸羟胺反应,得到相应的吡唑和异恶唑衍生物4-7。使化合物3与硫脲,胍和氰基胍反应,得到相应的嘧啶衍生物8-10。嘧啶并[1,2-a]嘧啶12,苯并[1,5]二氮杂卓15,吡啶[1,2-b] [1,2,4]三氮杂卓16、1,2,4-三唑并[3,4-由3的反应制得b] [1,3,4] thiadiazepine 19和1,2,4-triazino [3,2-b] [1,3,4] thiadiazepine 20连接的thiazolidine-2,4-dione具有N,N-和N,S-双功能亲核试剂。3对碳亲核试剂的化学反应性产生了连接噻唑烷-2,4-二酮22-25的新杂环部分。