Intramolecular Diels-Alder reaction of pyrazines with an alkenyl side chain
作者:Bin Chen、Chu-Yao Yang、De-Yong Ye
DOI:10.1016/0040-4039(96)01868-0
日期:1996.11
IntramolecularDiels-Alderreaction of a series of pyrazines bearing a 5-membered-ω-alkene sidechain in refluxing trifluoroacetic acid led to the formation of bridged tricyclic compounds. These cycloadducts underwent Retro Diels-Alderreaction in refluxing nitrobenzene to give original pyrazines.