Co-crystals of caffeine and hydroxy-2-naphthoic acids: unusual formation of the carboxylic acid dimer in the presence of a heterosynthon.
Dejan-Kresimir Bucar, Rodger F Henry, Xiaochun Lou, Richard W Duerst, Thomas B Borchardt, Leonard R MacGillivray, Geoff G Z Zhang
Index: Mol. Pharm. 4(3) , 339-46, (2007)
Full Text: HTML
Abstract
A group of caffeine-containing co-crystals of hydroxy-2-naphthoic acids were synthesized and analyzed via single-crystal X-ray diffraction and IR analysis. The imidazole-carboxylic acid synthon was observed in co-crystals involving 1-hydroxy-2-naphthoic and 3-hydroxy-2-naphthoic acid. In the case of 6-hydroxy-2-naphthoic acid, the co-crystal exhibits a hydrogen-bonded carboxylic acid dimer in the presence of a hydroxyl-caffeine heterosynthon.
Related Compounds
Related Articles:
2012-05-01
[Int. J. Pept. Res. Ther. 18(2) , 117-124, (2012)]
2009-12-01
[Biosci. Biotechnol. Biochem. 73(12) , 2796-9, (2009)]
2013-01-01
[Chem. Pharm. Bull. 61(7) , 740-6, (2013)]
Synthesis and characterization of wholly aromatic polyesters derived from 6-hydroxy-5-phenyl-2-naphthoic acid or 4'-hydroxy-3'-phenylbiphenyl-4-carboxylic acid and 4-hydroxybenzoic acid. Huh S-M and Jin J.
[Macromolecules 30(10) , 3005-3013, (1997)]
New cholesteric liquid-crystal epoxy resins derived from 6-hydroxy-2-naphthoic acid. Espinosa MA, et al.
[J. Polym. Sci. A Polym. Chem. 39(16) , 2847-58, (2001)]