作者:Francesca Cicogna、Giovanni Ingrosso、Fabio Lodato、Fabio Marchetti、Maurizio Zandomeneghi
DOI:10.1016/j.tet.2004.09.070
日期:2004.12
9-Anthroylacetone undergoes a head-to-tail [4π+4π] photo-dimerisation reaction that leads to the formation of 5,11-bis(1,3-diketobutyl)-5,6,11,12-tetrahydro-5,12,6,11-di-o-benzeno-dibenzo[a,e]cyclooctene both in solution and in the solid state when irradiated with different sources (sunlight, tungsten lamp, xenon lamp, UV laser beam 351–364 nm), the reaction being accompanied by a colour variation
9-蒽基丙酮经历从头到尾的[4π+4π]光二聚反应,导致形成5,11-双(1,3-二酮丁)-5,6,11,12-四氢-5,当用不同的光源(阳光,钨丝灯,氙气灯,UV激光束351–364 nm)照射时,在溶液和固态下均具有12,6,11-二-邻-苯并二苯并[ a,e ]环辛烯,反应伴随着从鲜黄色到无色的颜色变化。对于固态反应,评估了> 0.023 mol /爱因斯坦的量子产率。有趣的是,二聚体在热(T> 130°C)并通过短紫外线波长照射进行光化学处理。报道了9-蒽基丙酮的单晶X射线结构及其二聚体。