作者:Masaya Suzuki、Kazunori Imai、Hidetsugu Wakabayashi、Atsuko Arita、Kohei Johmoto、Hidehiro Uekusa、Keiji Kobayashi
DOI:10.1016/j.tet.2011.05.032
日期:2011.7
cyclohexa-2,5-dien-1-one (6) spiro-conjoined with a dihydrobenzofuran framework, and the photochemical behavior of this compound in solution as well as in the solid state are described. The photoreaction of 6 in solution affords two rearranged products, one (7) accompanied by the enlargement of the oxygen heterocyclic ring and the other (8) accompanied by cyclopentadienone fragmentation. In the solid state
描述了与二氢苯并呋喃骨架螺旋连接的环己-2,5-二烯-1-酮(6)的意外形成,以及该化合物在溶液中以及在固态下的光化学行为。溶液中6的光反应提供了两种重排产物,一种(7)伴随着氧杂环的扩大,另一种(8)并伴有环戊二烯酮断裂。在固态下,前者是溶剂化和去溶剂化晶体的唯一光产物。通过溶剂分子的热释放获得去溶剂化的晶体,为多晶固体,并通过从X射线粉末衍射数据从头确定,然后进行Rietveld精炼,阐明了其结构。