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Reactions between hexafluorobut-2-yne and tricarbonyl[2-(phenylazo)phenyl-C1N′]cobalt and related complexes give substituted quinoline-2-ones via an isolable organometallic intermediate. The latter is formed by formal insertion of CO and the alkyne into the Co-C σ bond of the initial cobalt complex. Some other reactions of the organometallic intermediate are also described.
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Bruce et al. (1975) studied this question.
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