2,2'-Biquinoline

2,2'-Biquinoline is an organic compound with the formula (C9H6N)2. It is one of several dimers of the bicyclic heterocycle called quinoline. It is prepared by reductive coupling of 2-chloroquinoline.[1] It is a colorimetric indicator for organolithium compounds.[2]

2,2'-Biquinoline
Names
Other names
2,2'-Biquinolyl; 2-Quinolin-2-ylquinoline; Cuproin
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.003.961
EC Number
  • 204-357-5
UNII
Properties
C18H12N2
Molar mass 256.308 g·mol−1
Appearance White solid
Melting point 194.5 °C (382.1 °F; 467.6 K)
Hazards
GHS pictograms
GHS Signal word Warning
GHS hazard statements
H315, H319, H335
P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

References

  1. Nelson, Todd D.; Crouch, R. David (2004). "Cu, Ni, and Pd Mediated Homocoupling Reactions in Biaryl Syntheses: The Ullmann Reaction". Org. Reactions. 15. doi:10.1002/0471264180.or063.03.
  2. 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.
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