作者:Hisham A. Abd El-Nabi
DOI:10.1016/s0040-4020(00)00056-9
日期:2000.5
described to convert the title compound into more complex nitrogen heterocyclic systems in a short and attractive pathway. Spiroisoxazolidine 6 was obtained from the reaction of nitrone 3 with ethyl vinyl ether. Chloroformylation of pyrrolone 2 gave 1-aryl-2-chloro-5-methoxy-pyrrol-3-carbaldehyde 4. Substitution of chlorine atom with unsaturated nucleophiles 8a,b and then modifying the aldehyde function into
描述了一种通用方法,可以通过短而诱人的途径将标题化合物转化为更复杂的氮杂环系统。由硝酮3与乙基乙烯基醚的反应获得螺异恶唑烷6。吡咯酮的酰氯化2得到1-芳基-2-氯-5-甲氧基吡咯-3-甲醛4。与不饱和亲核试剂氯原子的取代8A,b,然后修改该醛官能团成1,3-偶极子10和14个布置三环杂环11,12和15经由分子内1,3-偶极环加成反应。