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Regioselective hydroacylation of 1,3-dienes by cobalt catalysis.

ABSTRACT: We describe a cobalt-catalyzed hydroacylation of 1,3-dienes with non-chelating aldehydes. Aromatic aldehydes provide 1,4-addition products as the major isomer, while aliphatic aldehydes favor 1,2-hydroacylation products. The kinetic profile supports an oxidative cyclization mechanism involving a cobaltacycle intermediate that undergoes transformation with high regio- and stereoselectivity.

SUBMITTER: Chen QA 

PROVIDER: S-EPMC4117386 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Regioselective hydroacylation of 1,3-dienes by cobalt catalysis.

Chen Qing-An QA   Kim Daniel K DK   Dong Vy M VM  

Journal of the American Chemical Society 20140303 10

We describe a cobalt-catalyzed hydroacylation of 1,3-dienes with non-chelating aldehydes. Aromatic aldehydes provide 1,4-addition products as the major isomer, while aliphatic aldehydes favor 1,2-hydroacylation products. The kinetic profile supports an oxidative cyclization mechanism involving a cobaltacycle intermediate that undergoes transformation with high regio- and stereoselectivity. ...[more]

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