intramolecular cycloaddition reactions. Allenyl 2-halogenated-3-vinylcyclohex-2-enyl ethers underwent a tandem [4+2] cycloaddition/aromatization reaction to afford the corresponding tetrahydro-3H-naphtho[1,8-bc]furan compound in high yield.
取代基对二烯部分的立体和焓效应在分子内环加成反应中起关键作用。对烯丙基2-卤代-3-
乙烯基环己-2-烯基醚进行串联[4 + 2]环加成/芳构化反应,以高收率得到相应的四氢-3H-
萘[1,8- bc ]
呋喃化合物。