4-Nitro-2-phenyloxazole: an electrophilic dienophile for normal Diels–Alder reactions in the oxazole series
作者:Rodolfo Nesi、Stefania Turchi、Donatella Giomi、Sandro Papaleo
DOI:10.1039/c39930000978
日期:——
The title compound 2, obtained by thermal isomerization of the corresponding nitroisoxazole 1, is found to undergo [2 + 4] cycloaddition processes with 2,3-dimethylbuta-1,3-diene and cyclohexa-1,3-diene, respectively.
发现通过相应的硝基异恶唑1的热异构化获得的标题化合物2分别经历了与2,3-二甲基丁-1,3-二烯和环己-1,3-二烯的[2 + 4]环加成过程。