Abstract
A number of first-row transition metal salts catalyze deprotonative dimerization of acidic arenes. Under the atmosphere of oxygen, nickel, manganese, cobalt, and iron chlorides have been shown to dimerize five- and six-membered ring heterocycles as well as electron-poor arenes. Both tetramethylpiperidide and dicyclohexylamide bases can be employed; however, the former afford slightly higher yields.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Catalysis
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Chlorides / chemistry*
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Cobalt / chemistry*
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Dimerization
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Ferric Compounds / chemistry*
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Manganese Compounds / chemistry*
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Molecular Structure
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Nickel / chemistry*
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Protons*
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Stereoisomerism
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Triazoles / chemical synthesis*
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Triazoles / chemistry
Substances
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Chlorides
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Ferric Compounds
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Manganese Compounds
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Protons
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Triazoles
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Cobalt
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nickel chloride
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Nickel
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cobaltous chloride
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manganese chloride
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ferric chloride