作者:Clara Baldoli、Emanuela Licandro、Stefano Maiorana、Ernesto Menta、Antonio Papagni
DOI:10.1055/s-1987-27921
日期:——
2-(2-Aminoaryl)-2-oxo-triphenylphosphoniumethylides 2a-d, readily available by standard procedures, are converted into 4-oxo-1,4-dihydrocinnolines 7a-d by treatment with nitrous acid and subsequent basic hydrolysis of the intermediate phosphoranes 6a-d.
2-(2-氨基芳基)-2-氧-三苯基膦乙烯基化合物2a-d,通过标准方法易于获得,通过与亚硝酸的处理以及随后对中间磷烷6a-d的碱性水解,转化为4-氧-1,4-二氢肉桂啶7a-d。