Reference

Transformation of 1- and 2-methylnaphthalene by Cunninghamella elegans

Transformation of 1- and 2-methylnaphthalene by Cunninghamella elegans. Cerniglia, Carl E.; Lambert, Kenneth J.; Miller, Dwight W.; Freeman, J. P. (Food Drug Adm., Natl. Cent. Toxicol. Res., Jefferson, AR 72079, USA). Appl. Environ. Microbiol., 47(1), 111-18 (English) 1984. CODEN: AEMIDF. ISSN: 0099-2240. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 10, 51 Cunninghamella elegans Metabolized 1- [90-12-0] and 2-methylnaphthalene (I) [91-57-6] primarily at the Me group to form 1- [4780-79-4] and 2-hydroxymethylnaphthalene (II) [1592-38-7], resp. Other compds. isolated and identified were 5-hydroxy-1naphthoic acid [2437-16-3], 5-hydroxy-2-naphthoic acid (III) [2437-18-5], 6-hydroxy-2-naphthoic acid (IV) [16712-64-4] and phenolic derivs. of 1- and 2-methylnaphthalene. The metabolites were isolated by thin-layer and reverse-phase high-pressure liq. chromatog. and characterized by the application of UV-visible absorption. 1H NMR and mass spectral techniques. Expts. with [8-14C]2-methylnaphthalene indicated that over a 72-h period, 9.8% of I was oxidized to metabolic products. The ratio of org.-sol. to water-sol. metabolites at 2 h was , and at 72 h it was . There are some commonly used reagents like 90-12-0 in this article. Enzymic treatment of the 48-h aq. phase with either b-glucuronidase or arylsulfatase released 60% of the metabolites of I that were extractable with EtOAc. In both cases, the major conjugates released were III and IV. The ratio of the water-sol. glucuronide conjugates to sulfate conjugates was 1:1. Incubation of C. elegans with I under an 18O atm. and subsequent mass spectral anal. of II indicated that hydroxylation of the Me group is catalyzed by a monooxygenase. .

Naphthoic acid derivatives as hydrogen bond donors in supramolecular materials

All Rights Reserved. Naphthoic acid derivatives as hydrogen bond donors in supramolecular materials. Riedel, Paul J.; Kumpfer, Justin R.; Rogness, Donald C.; Wiegel, Kurt N. (Department of Chemistry, University of Wisconsin-Eau Claire, Eau Claire, WI 54702, USA). Journal of Applied Polymer Science, 102(6), 5890-5894 (English) 2006 John Wiley & Sons, Inc. CODEN: JAPNAB.Some commonly used reagents like 855300-33-3 and 16712-64-4 are used in this experiment. ISSN: 0021-8995. DOCUMENT TYPE: Journal CA Section: 75 (Crystallography and Liquid Crystals) The synthesis of a series of 6-hydroxy-2-naphthoic acid derivs. is described. These have been used to form supramol. main-chain liq. cryst. polymers. These hydrogen bond donors are complexed with a series of bisfunctionalized rigid pyridine species. These associative chain structures were analyzed through differential scanning calorimetry and polarizing light thermal optical microscopy. The liq. cryst. phases formed displayed mainly enantiotropic nematic phases that display an increase in clearing temp. as the rigid portions of the supramol. system increased in length. A decrease in the clearing temp. was obsd. as the length of the flexible spacer group increased. Both of these observations follow established trends in liq. cryst. behavior. .