Photoinduced Intermolecular [4+2] Cycloaddition Reaction for Construction of Benzobicyclo[2.2.2]octane Skeletons
作者:Qiang Liu、Junlei Wang、Dazhi Li、Chao Yang、Wujiong Xia
DOI:10.1021/acs.joc.6b02547
日期:2017.2.3
skeletons has been explored. Under UV-light irradiation, o-divinylbenzenes underwent a pericyclic reaction to form the cyclic o-quinodimethane intermediates which were subsequently reacted with olefins through [4+2] addition to construct the benzobicyclo[2.2.2]octane skeletons in mild conditions. Gram scale reactions demonstrated the synthetic potential application of this protocol.
探索了一种新型的高效合成高度取代的苯并双环[2.2.2]辛烷骨架的方法。在紫外光照射下,邻-二乙烯基苯经历周环反应以形成环状邻-喹二甲烷中间体,随后通过[4 + 2]加成使其与烯烃反应,从而在温和条件下构建苯并双环[2.2.2]辛烷骨架。革兰氏反应证明了该方案的合成潜力。