作者:Baldev Singh
DOI:10.1002/jhet.5570280408
日期:1991.6
Diazotization of 2-nitro-4-(4-pyridinyl)aniline (4) in hydrobromic acid gave the corresponding bromo derivative 5 which was treated with cuprous cyanide to give the benzonitrile derivative 6 which in turn was converted to 2-nitroacetophenone derivative 9. Reduction of 9 followed by diazotization of the resulting amine 10 gave 7-(4-pyridinyl)cinnolin-4(1H)-one (11) which was subsequently converted to
2-硝基-4-(4-吡啶基)苯胺(4)在氢溴酸中的重氮化反应得到相应的溴衍生物5,将其用氰化亚铜处理,得到苄腈衍生物6,该苄腈衍生物6随后转化为2-硝基苯乙酮衍生物9。还原9,然后将所得胺10重氮化,得到7-(4-吡啶基)肉桂醇-4(1H)-一(11),其随后转化为1-乙基-1,4-二氢-4-氧代- 7-(4-吡啶基)cinnoline-3-羧酸(14)分三步。