Synthesis of N,N-di(arylmethylidene)arylmethanediamines by flash vacuum pyrolysis of arylmethylazides
作者:Chin-Hsing Chou、Li-Tse Chu、Shao-Jung Chiu、Chin-Fan Lee、Yao-Teng She
DOI:10.1016/j.tet.2004.06.082
日期:2004.7
Flash vacuum pyrolysis of arylmethylazides 7a-d gave 2,4-diazapentadienes 5a-d in high yield (76–92%). The thermal cyclization of 5a-d gave cis-imidazolines 1a-d, further heating or Swern oxidation of 1a-d gave dehydrogenated products, imidazoles 2a-d.
闪蒸真空热解芳基甲基叠氮化物7a - d得到高产率(76-92%)的2,4-二氮杂戊二烯5a - d。的热环化5A - d得到顺-imidazolines 1A - d,进一步加热或Swern氧化1A - d给脱氢产物,咪唑2A - d。