دانلود مقالات ISI درباره کتپانتوالکتون + ترجمه فارسی

Modifier–substrate interactions of various types in the Orito reaction: Reversal of the enantioselection in the hydrogenation of ketopantolactone on Pt modified by β-isocinchonine and O-phenylcinchonidine

Keywords: کتپانتوالکتون; Enantioselective hydrogenation; Platinum; Cinchona alkaloid; Ketopantolactone; Reversal of enantioselectivity; Intermediate complexes

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2013 سفارش ترجمه

Influence of support acid–base properties on the platinum-catalyzed enantioselective hydrogenation of activated ketones

Keywords: کتپانتوالکتون; Platinum; Ketopantolactone; Methyl benzoylformate; Asymmetric hydrogenation; Acid–base properties; Metal–support interaction; CO adsorption

دانلود رایگان متن کامل مقاله ISI 10 صفحه سال انتشار : 2010 سفارش ترجمه

Additional data to the origin of rate enhancement in the enantioselective hydrogenation of activated ketones over cinchonidine modified platinum catalyst

Keywords: کتپانتوالکتون; Enantioselective hydrogenation; Rate enhancement; Ethyl pyruvate; Condensation products; Methylbenzoyl formate; Ketopantolactone; Low substrate concentration; Pt/Al2O3; Cinchonidine;

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2009 سفارش ترجمه

Enantioselective hydrogenation of ketopantolactone using Pt–β-ICN chiral catalyst: Correlation between the solution-state concentration of a nucleophilic β-isocinchonine–ketopantolactone complex and enantioselectivity

Keywords: کتپانتوالکتون; Pt–cinchona catalyst; Enantioselective hydrogenation; Intermediate complex; Ketopantolactone; NMR; Origin of enantioselection, Organocatalysis

دانلود رایگان متن کامل مقاله ISI 8 صفحه سال انتشار : 2008 سفارش ترجمه

New data to the origin of rate enhancement on the Pt-cinchona catalyzed enantioselective hydrogenation of activated ketones using continuous-flow fixed-bed reactor system

Keywords: کتپانتوالکتون; Asymmetric hydrogenation; Platinum; Cinchona alkaloids; Methyl benzoylformate; Ketopantolactone; Pyruvic aldehyde dimethyl acetal; Continuous-flow fixed-bed-reactor; Origin of rate enhancement; Ligand acceleration

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2008 سفارش ترجمه

Methylethers of cinchona alkaloids in Pt-catalyzed hydrogenation of ethyl pyruvate and ketopantolactone: Effect of stereochemical factors on the enantioselectivity

Keywords: کتپانتوالکتون; Cinchona alkaloid derivatives; Enantioselective hydrogenations; Ethyl pyruvate; Ketopantolactone; Pt-alumina; Nonlinear phenomenon

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2008 سفارش ترجمه

Hydrogenation of α-ketoesters and ketopantolactone on rhodium modified by cinchona and isocinchona alkaloids

Keywords: کتپانتوالکتون; Ethyl pyruvate; Ethyl 3-methyl-2-oxobutyrate; Ketopantolactone; β-Isocinchonine; Asymmetric hydrogenation; Nonlinear phenomenon; Inversion of enantioselectivity

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2007 سفارش ترجمه

NMR spectroscopic and theoretical evidence of cinchona alkaloid– ketopantolactone complex formation in aprotic solvents: Implications for the mechanism of Pt-catalyzed enantioselective hydrogenation of activated ketones

Keywords: کتپانتوالکتون; Enantioselective hydrogenation; Chiral induction; Supramolecular complex; Intermediate complex; Cinchona; Ketopantolactone; NMR; Molecular modeling

دانلود رایگان متن کامل مقاله ISI 11 صفحه سال انتشار : 2007 سفارش ترجمه

Why are α-hydroxycarboxylic acids poor chiral modifiers for Pt in the hydrogenation of ketones?

Keywords: کتپانتوالکتون; Ketopantolactone; Asymmetric; Enantioselective; Hydrogenation; (R)-Mandelic acid; (S)-Naphthylglycolic acid; FTIR; ATR-IR; Hydrogen bonding; Pt; Rh; Ru

دانلود رایگان متن کامل مقاله ISI 7 صفحه سال انتشار : 2006 سفارش ترجمه

Inversion of enantioselectivity in the hydrogenation of ketopantolactone on a Pt-β-ICN chiral catalyst

Keywords: کتپانتوالکتون; Chiral hydrogenation; Pt-alumina; α- and β-isocinchonine; Ketopantolactone; Intermediate; Conformation; Inversion of enantioselectivity; Sense of enantioselection

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2006 سفارش ترجمه

Rhodium-catalyzed enantioselective hydrogenation of ketopantolactone

Keywords: کتپانتوالکتون; Ketopantolactone; Asymmetric; Hydrogenation; Rh/Al2O3; O-methyl-cinchonidine; O-phenyl-cinchonidine; Nonlinear phenomenon;

دانلود رایگان متن کامل مقاله ISI 5 صفحه سال انتشار : 2005 سفارش ترجمه

Conformational rigidity: a necessary prerequisite of chiral modifiers used in heterogeneous enantioselective catalysis?

Keywords: کتپانتوالکتون; Acid effect; Asymmetric heterogeneous catalysis; Pt/Al2O3; Ketopantolactone; Hydrogenation; Ab initio calculation; NOE; Modifier conformation;

دانلود رایگان متن کامل مقاله ISI 6 صفحه سال انتشار : 2005 سفارش ترجمه

Quaternary ammonium derivatives of cinchonidine as new chiral modifiers for platinum

Keywords: کتپانتوالکتون; N-methyl-cinchonidinium chloride; N,O-dimethyl-cinchonidinium chloride; Asymmetric hydrogenation; Heterogeneous catalysis; Pt/Al2O3; Ketopantolactone;

دانلود رایگان متن کامل مقاله ISI 9 صفحه سال انتشار : 2005 سفارش ترجمه

Reflections on chiral metal surfaces and their potential for catalysis

Keywords: کتپانتوالکتون; Chiral surface; Chiral modification; Metal surface; Asymmetric catalysis; Enantioselective hydrogenation; Platinum; Ketopantolactone;

دانلود رایگان متن کامل مقاله ISI 12 صفحه سال انتشار : 2005 سفارش ترجمه