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The use of Br/Cl to promote regioselective gold-catalyzed rearrangement of propargylic carboxylates: an efficient synthesis of (1Z, 3E)-1-bromo/chloro-2-carboxy-1,3-dienes.

ABSTRACT: A gold-catalyzed synthesis of 1-bromo/chloro-2-carboxy-1,3-dienes is developed using propargylic carboxylates containing halogenated alkynes as substrates. The reaction is highly diastereoselective, and the halogen atom at the alkyne terminus selectively promotes a 1,2-acyloxy migration. The diene products participate in the Diels-Alder and cross-coupling reactions.

SUBMITTER: Wang Y

PROVIDER: S-EPMC3160769 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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The use of Br/Cl to promote regioselective gold-catalyzed rearrangement of propargylic carboxylates: an efficient synthesis of (1Z, 3E)-1-bromo/chloro-2-carboxy-1,3-dienes.

Wang Yanzhao Y Lu Biao B Zhang Liming L

Chemical communications (Cambridge, England) 20101029 48

A gold-catalyzed synthesis of 1-bromo/chloro-2-carboxy-1,3-dienes is developed using propargylic carboxylates containing halogenated alkynes as substrates. The reaction is highly diastereoselective, and the halogen atom at the alkyne terminus selectively promotes a 1,2-acyloxy migration. The diene products participate in the Diels-Alder and cross-coupling reactions. ...[more]

PMID: 21038044

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