Chemistry Department, University of Hamburg, D-20146 Hamburg, Germany.
Org Lett. 2010 Feb 19;12(4):728-30. doi: 10.1021/ol902827s.
The title compounds undergo regio- and diastereoselective [2+2]-cycloaddition at the olefinic C-C bond on irradiation (350 nm) in the presence of either methacrylonitrile or 2,3-dimethylbuta-1,3-diene, affording hitherto unknown 1-cyclobutylalk-1-yn-3-ones or 1-bicyclo[4.2.0]octylalk-1-yn-3-ones, respectively.
标题化合物在光照（350nm）下，在丙烯腈或 2,3-二甲基丁-1,3-二烯的存在下，经历区域和立体选择性[2+2]-环加成反应，在烯键上，分别得到迄今为止未知的 1-环丁基-1-炔-3-酮或 1-双环[4.2.0]辛基-1-炔-3-酮。
