Synthesis of n,n′-biquinolines by a coupling reaction of bromoquinolines using organonickel(0) complexes
✍ Scribed by Yolanda Benito; Laureano Canoira; J. Gonzalo Rodriguez
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 424 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0268-2605
No coin nor oath required. For personal study only.
✦ Synopsis
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 mixture of the n,n'-biquinoline and substitution products. A mechanism can be outlined to explain the coupling reaction of bromoquinolines using zerovalent nickel complexes.
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