Synthesis of n,nโฒ-biquinolines by a coup
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Yolanda Benito; Laureano Canoira; J. Gonzalo Rodriguez
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Article
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1987
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John Wiley and Sons
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English
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## Tris(triphenylphosphine)nickel(O) (A) and a zerovalent pyridine-nickel complex (B) have been used as reagents for the coupling reaction of 3-, 6and 8-bromoquinolines: 3,3'-, 6-6'-and 8,8'-Biquinolines were obtained in quantitative yields when A was used as the coupling reagent. B gave always a