(+/-)-1-(1-Naphthyl)ethanol - CAS 57605-95-5
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CAS 57605-95-5 (+/-)-1-(1-Naphthyl)ethanol

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1.High hydrostatic pressure perturbs the interactions between CF(0)F(1) subunits and induces a dual effect on activity.
Souza MO1, Creczynski-Pasa TB, Scofano HM, Gräber P, Mignaco JA. Int J Biochem Cell Biol. 2004 May;36(5):920-30.
Chloroplast ATP-synthase is an H(+)/ATP-driven rotary motor in which a hydrophobic multi-subunit assemblage rotates within a hydrophilic stator, and subunit interactions dictate alternate-site catalysis. To explore the relevance of these interactions for catalysis we use hydrostatic pressure to induce conformational changes and/or subunit dissociation, and the resulting changes in the ATPase activity and oligomer structure are evaluated. Under moderate hydrostatic pressure (up to 60-80 MPa), ATPase activity is increased by 1.5-fold. This is not related to an increase in the affinity for ATP, but seems to correlate with an enhanced turnover induced by pressure, and an activation volume for the ATPase reaction of -23.7 ml/mol. Higher pressure (up to 200 MPa) leads to dissociation of the enzyme, as shown by enzyme inactivation, increased binding of 8-anilinonaphthalene-1-sulfonate (ANS) to hydrophobic regions, and labeling of specific Cys residues on the beta and alpha subunits by N-iodoacetyl-N'-(5-sulfo-1-naphthyl)ethylene-4-diamine (IAEDANS).
2.Immobilization of intracellular carbonyl reductase from Geotrichum candidum for the stereoselective reduction of 1-naphthyl ketone.
Bhattacharyya MS1, Singh A, Banerjee UC. Bioresour Technol. 2010 Mar;101(6):1581-6. doi: 10.1016/j.biortech.2009.09.080. Epub 2009 Oct 21.
Different cell disintegration methods were used for the liberation of intracellular carbonyl reductase from Geotrichum candidum, in its active form. Solid shear (bead milling) was proved to be the best method for the extraction of the enzyme. Various solid supports were checked for the immobilization of the purified enzyme. Carbonyl reductase was immobilized on silica with an optimized protein loading of 4 mg/g support. Cross-linking with glutaraldehyde rendered the preparation more stable and suitable for use in consecutive batches. Carbonyl reductase of G. candidum immobilized on silica support and cross-linked by glutaraldehyde was found to be highly efficient biocatalyst formulation for the production of S(-)-1-(1'-naphthyl) ethanol.
3.Synthesis and antihyperglycemic activity of 2-(substituted phenyl)-3-{[4-(1-naphthyl)-1,3-thiazol-2-yl] amino}-4-oxo-1,3-thiazolidin-5-ylacetic acid derivatives.
Imran M1, Yar MS, Khan SA. Acta Pol Pharm. 2009 Jan-Feb;66(1):51-6.
The title compounds were prepared by brominating 1-acetylnaphthalene in chloroform followed by condensation with substituted benzaldehyde thiosemicarbazones using ethanol to get 4-naphthalen-1-yl-2-{2-[(substituted phenyl)methylidene]hydrazino}-1,3-thiazoles. These thiazole derivatives were then cyclized to title compounds by reacting with thiomalic acid in dioxane using ZnCl2. All the synthesized compounds were characterized on the basis of their IR, 1H NMR, and elemental analysis. The antihyperglycemic study was divided into two phases. Phase-I involved evaluation of blood glucose lowering ability of thiazolidinones in normal rats by sucrose-loaded model (SLM). Phase-II study included the evaluation of blood sugar by alloxan model.
4.Influence of fluorine atoms and aromatic rings on the acidity of ethanol.
Ramírez RE1, García-Martínez C, Méndez F. J Phys Chem A. 2009 Oct 8;113(40):10753-8. doi: 10.1021/jp810475z.
Absolute gas-phase acidities Delta(acid)G(0)(OH) and Delta(acid)G(0)(CH) were calculated at the B3LYP and MP2 levels using six different standard basis sets for the OH and CH heterolytic bond cleavage of ethanol and twelve derivatives of the type CH(3-n)F(n)CHX(r)OH, where n ranges from zero to three and represents the number of fluorine atoms and r represents hydrogen and the type of aromatic ring, namely: X(0) = hydrogen, X(1) = phenyl, X(2) = 1-naphthyl, and X(3) = 9-anthryl. The similarity between calculated and experimental Delta(acid)G(0)(OH) values for ethanol (1a), 2-fluoroethanol (1b), 2,2-difluoroethanol (1c), 2,2,2-trifluoroethanol (1d), and 1-phenylethanol (2a) was used to validate the right theoretical method for this study. Substituent partial contributions to hydroxyl-, methylene-, and methine-hydrogen acidities were evaluated by linear combination. Good parameter fittings of the primary and secondary alcohols were obtained and interpreted as additive contribution of the substituent effects.