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Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
Organic Photocatalytic Cyclization of Polyenes: A Visible-Light-Mediated Radical Cascade Approach
Zhongbo Yang1,2, Han Li3, Long Zhang1,2
1Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86)-10-6255-4449http://luosz.iccas.ac.cn.
Abstract:
A visible-light-mediated, organic photocatalytic stereoselective radical cascade cyclization of polyprenoids is described. The desired cascade cyclization products are achieved in good yields and high stereoselectivities with eosin Y as photocatalyst in hexafluoro-2-propanol. The catalyst system is also suitable for 1,3-dicarbonyl compounds, which require only catalytic amounts of LiBr to promote the formation of the corresponding enols.
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