New features of isoxazole chemistry. The reaction of ethyl 4-nitro-3-phenylisoxazole-5-carboxylate with 2,3-dimethylbuta-1,3-diene
作者:Rodolfo Nesi、Donatella Giomi、Sandro Papaleo、Laura Quartara
DOI:10.1039/c39860001536
日期:——
The title compound (2) was found to undergo a (2 + 4) cycloaddition with 2,3-dimethylbuta-1,3-diene affording the tetrahydro-1,2-benzisoxazole (3), which could be easily converted into the corresponding dihydro derivative (4) by elimination of the NO2 and CO2Et groups.
发现标题化合物(2)与2,3-二甲基丁-1,3-二烯进行(2 + 4)环加成,得到四氢-1,2-苯并恶唑(3),可以很容易地转化为相应的通过消除NO 2和CO 2 Et基团形成二氢衍生物(4)。