2381-19-3Relevant articles and documents
Air-Driven Potassium Iodide-Mediated Oxidative Photocyclization of Stilbene Derivatives
Matsushima, Tomoya,Kobayashi, Sayaka,Watanabe, Soichiro
, p. 7799 - 7806 (2016/09/09)
A new method has been developed for the potassium iodide-mediated oxidative photocyclization of stilbene derivatives. Compared with conventional iodine-mediated oxidative photocyclization reactions, this new method requires shorter reaction times and affords cyclized products in yields of 45-97%. This reaction proceeds with a catalytic amount of potassium iodide and works in an air-driven manner without the addition of an external scavenger. The radical-mediated oxidative photocyclization of stilbene derivatives using TEMPO was also investigated.
Efficient helicene synthesis: Friedel-crafts-type cyclization of 1,1-difluoro-1-alkenes
Ichikawa, Junji,Yokota, Misaki,Kudo, Takao,Umezaki, Satoshi
supporting information; experimental part, p. 4870 - 4873 (2009/02/08)
(Chemical Equation Presented) The unique properties of fluorine substituents, leaving groups that also stabilize an a carbocation, are exploited in a high-yielding synthesis of substituted [4]- to [6]helicenes in three or four steps from commercially available compounds: Two fused benzene rings are constructed in the title reaction of readily prepared 1,1-difluoro-1-alkenes containing two aryl groups followed by dehydrogenation (see scheme).
Synthesis of alkyl-substituted benzo[c]phenanthrenes and chrysenes by photocyclization.
Nagel,Kupper,Antonson,Wallcave
, p. 3626 - 3628 (2007/10/05)
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