Synthesis of New (Pyrimido[4,5-<i>e</i>][1,3,4] thiadiazin-7-yl)hydrazine Derivatives
作者:Javad Azizian、Ramin Miri、Mohammad Kazem Mohammadi、Fatemeh Sheikholeslami Farahani、Javad Hosseini、Mohsen Nikpour
DOI:10.1080/10426500903299893
日期:2010.7.30
New (pyrimido[4,5-e][1,3,4]thiadiazin-7-yl)hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as bidentate nucleophiles with 5-bromo-2,4-dichloro-6-methylpyrimidine as an electrophile and further replacement of chlorine atom on the seven number position of pyrimido[4,5-e][1,3,4]thiadiazin by hydrazine in boiling ethanol.
新的 (pyrimido[4,5-e][1,3,4]thiadiazin-7-yl) 肼是通过作为双齿亲核试剂的 2-苯基肼碳二硫代烷基酯与 5-溴-2,4-二氯-6 的环缩合反应合成的-甲基嘧啶作为亲电子试剂,并在沸腾的乙醇中用肼进一步取代嘧啶并[4,5-e][1,3,4]噻二嗪的七个数位上的氯原子。