El-Nabi, Hisham A. Abd, Journal of Chemical Research - Part S, 2004, # 5, p. 325 - 327
作者:El-Nabi, Hisham A. Abd
DOI:——
日期:——
1-Aryl-5-methoxy-pyrrolones as Synthons for 1,3-Dipolar Cycloadditions
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 heterocyclicsystems 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