作者:Michael G. Hutchings、David P. Devonald
DOI:10.1016/s0040-4039(01)80491-3
日期:1989.1
Cyclisation of 2-arylazophenylacetic acid with oxalyl chloride gives novel 2-aryl-3-cinnolinones in good yield. Mixed ketene acetals derived from the corresponding phenylacetate esters also give the same product, sometimes with 2-arylindazoles, on treatment with titanium tetrachloride.
用草酰氯将2-芳基偶氮苯基乙酸环化,可以高收率得到新的2-芳基-3-肉桂基酮。衍生自相应的乙酸苯酯的混合乙烯酮缩醛在经过四氯化钛处理后,有时也会生成2-芳基吲唑,从而得到相同的产物。