2,2′-Biquinoline is an organic compound with the formula (C9H6N)2. It is one of several biquinolines. It is prepared by reductive coupling of 2-chloroquinoline.[2] It is a colorimetric indicator for organolithium compounds.[3]
Ligand properties
2,2′-Biquinoline is a bidentate ligand. Unlike the related complexes of 2,2′-bipyridine, the metal does not typically occupy the plane of the biquinoline.
References
- ^ Folting, K.; Merritt, L. L. (1977). "2,2'-Biquinolyl". Acta Crystallographica Section B. 33 (11): 3540–3542. doi:10.1107/S0567740877011406.
- ^ Nelson, Todd D.; Crouch, R. David (2004). "Cu, Ni, and Pd Mediated Homocoupling Reactions in Biaryl Syntheses: The Ullmann Reaction". Organic Reactions. 15: 265–555. doi:10.1002/0471264180.or063.03. ISBN 0471264180.
- ^ Watson, Spencer Charles; Eastham, Jerome F. (1967). "Colored Indicators for Simple Direct Titration of Magnesium and Lithium Reagents". Journal of Organometallic Chemistry. 9: 165–8. doi:10.1016/S0022-328X(00)92418-5.
- ^ Ha, Kwang (2012). "(2,2′-Biquinoline-κ2-N,N′)dibromidopalladium(II)". Acta Crystallographica Section E. 68 (5): m618. doi:10.1107/S1600536812015425. PMC 3344352. PMID 22590118.