☆ 4.5 Article

Chromium-Catalyzed Radical Cyclization of Bromo and Chloro Acetals

ORGANOMETALLICS (2010)

期刊

ORGANOMETALLICS

卷 29, 期 24, 页码 6639-6641

出版社

AMER CHEMICAL SOC

DOI: 10.1021/om101068r

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Chemistry, Inorganic & Nuclear Chemistry, Organic

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Natural Sciences and Engineering Research Council of Canada (NSERC)
Canadian Foundation for Innovation
University of British Columbia

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Cyclopentadienyl chromium beta diketiminate catalysts are used for the radical cyclization of bromo and chloro acetals Mn powder activated with PbBr2 or PbCl2 is the stoichio metric reductant and gamma terpinene is the hydrogen atom donor Although the primary cyclized product can be isolated and structurally characterized as the Cr(III) complex this substrate can also be reduced catalytically under mild photolysis conditions

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