12-Substituted 2-bromo-1,11-dien-6-ynes were found to undergo a palladium-catalyzed biscyclization followed by a diastereospecific 6π-electrocyclic rearrangement or a Diels-Alder reaction to give substituted angularly bisanellated cyclohexadienes or polycyclic bicyclo[4.1.0]hept-2-ene derivatives containing a three-membered ring, depending on the type and pattern of substituents.
发现12取代的2-bromo-1,11-dien-6-ynes经历
钯催化的双环化,然后进行非对映特异性的6π-电环重排或Diels-Alder反应,生成取代的角双
三环的环
己二烯或多环的双环[4.1]。 [0]庚二烯衍
生物含有三元环,取决于取代基的类型和样式。