作者:Bin Chen、Chu-Yao Yang、De-Yong Ye
DOI:10.1016/0040-4039(96)01868-0
日期:1996.11
Intramolecular Diels-Alder reaction of a series of pyrazines bearing a 5-membered-ω-alkene side chain in refluxing trifluoroacetic acid led to the formation of bridged tricyclic compounds. These cycloadducts underwent Retro Diels-Alder reaction in refluxing nitrobenzene to give original pyrazines.
在回流的三氟乙酸中,一系列带有5元-ω-烯烃侧链的吡嗪的分子内Diels-Alder反应导致桥连的三环化合物的形成。这些环加合物在回流的硝基苯中进行Retro Diels-Alder反应,得到原始的吡嗪。