Cyclocondensation reactions of heterocyclic carbonyl compounds.. Synthesis of 2,6-bis(6-azauracil-5-yl)aniline and its use for synthesis of some other polynuclear 1,2,4-triazines
作者:Jan Hlaváč、Jan Slouka
DOI:10.1002/jhet.5570340331
日期:1997.5
5-(2-Aminophenyl)-6-azauracil 1 was converted to 7-(6-azauracil-5-yl)isatin 3, semicarbazone 4 of which was recyclized to 2,6-bis(6-azauracil-5-yl)aniline 5. This one served as a starting compound for preparation of other noncondensed two nuclear heterocycles 7, 9, 10 and condensed 1,2,4-triazines 11 and 12 as well.
5-(2-氨基苯基)-6-氮杂尿嘧啶1被转化为7-(6-氮杂尿嘧啶-5-基)Isatin 3,其半卡巴zone 4被循环利用为2,6-双(6-氮杂尿嘧啶-5-基)苯胺5。此之一服务作为起始化合物用于制备其它未冷凝两次核杂环的7,9,10和冷凝1,2,4-三嗪11和12也是如此。