Browsing "화학·나노과학전공" byAuthorUm I.-H.

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Showing results 144 to 173 of 175

Issue DateTitleAuthor(s)Type
2003Regioselectivity and the nature of the reaction mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with primary amines엄익환Article
2002Reinterpretation of curved hammett plots in reaction of nucleophiles with aryl benzoates: Change in rate-determining step or mechanism versus ground-state stabilization엄익환Article
2001Remarkable catalytic effect of H+ in Michael-type additions of anilines to 3-butyn-2-one엄익환Article
2015S<inf>N</inf>Ar reactions of 1-halo-2,4-dinitrobenzenes with alkali-metal ethoxides: Differential stabilization of ground state and transition state determines alkali-metal ion catalysis or inhibition엄익환Article
2003Significant and differential acceleration of dephosphorylation of the insecticides, paraoxon and parathion, caused by alkali metal ethoxides엄익환Article
1992Solvent effect on rate for anionic nucleophilic substitution reaction of 4-nitrophenyl acetate in aqueous acetonitrile권동숙; 엄익환Article
2001Solvent effect on the α-effect for the reactions of aryl acetates with butane-2,3-dione monoximate and p-chlorophenoxide in MeCN-H2O mixtures엄익환Article
2006Solvent effect on the α-effect: Ground-state versus transition-state effects; a combined calorimetric and kinetic investigation엄익환Article
2013Structure-reactivity correlations in nucleophilic displacement reactions of Y-substituted-phenyl X-substituted-cinnamates with Z-substituted-phenoxides엄익환Article
2006Structure-reactivity correlations in nucleophilic substitution reactions of Y-substituted phenyl X-substituted benzoates with anionic and neutral nucleophiles엄익환Article
1999Structure-reactivity correlations in the reaction of 2,4-dinitrophenyl X-substituted benzoates with alicyclic secondary amines엄익환Article
2001The catalytic effect of alkali metal ions on reactions of 8-(5-nitroquinolyl) 2-furoate with alkali metal ethoxides in anhydrous ethanol엄익환Article
1997The Effect of Acyl Substituent on the α-Effect in the Aminolysis of p-Nitrophenyl X-Substituted Benzoates권동숙; 엄익환Article
2001The effect of acyl substituents on the α-effect: Contrasting α-effect profiles for reactions of 4-nitrophenyl substituted benzoates with neutral and anionic nucleophiles엄익환Article
1998The Effect of Alkali Metal Ions on Acyl-Transfer Reactions: Unusually High Na+ Ion Selectivity in the Reaction of 8-(5-Nitroquinolyl) Benzoate with Alkali Metal Ethoxides in Ethanol엄익환Article
1997The Effect of Alkali Metal Ions on Nucleophilic Substitution Reactions of Alkali Metal Ethoxides with S-p-nitrophenyl 2-thiofuroate and 2-Thiophenethiocarboxylate in Absolute Ethanol권동숙; 엄익환Article
1996The effect of alkali metal ions on nucleophilic substitution reactions of p- and m-nitrophenyl 2-thiophenenates with alkali metal ethoxides in absolute ethanol권동숙; 엄익환Article
2001The effect of alkali metal ions on reactions of 8-(5-nitroquinolyl) 3-furoate with alkali metal ethoxides in anhydrous ethanol엄익환Article
1992The effect of alkali metal ions on the reaction of 4-nitrophenyl diphenylphosphinate with aryloxides in ethanol권동숙; 안병태; 엄익환Article
2003The effect of medium on rate and mechanism: Aminolysis of O-4-nitrophenyl thionobenzoate in MeCN and H2O엄익환Article
1999The effect of solvent on reaction rates and equilibria for the reactions of p-nitrophenyl acetate with alicyclic secondary amines in H2O and DMSO엄익환Article
1996The effect of solvent on reactions of p-nitrophenyl acetate with alicyclic secondary amines and with anionic nucleophiles in MeCN-H2O mixtures of varying compositions권동숙; 엄익환Article
2001The effect of solvent on the α-effect: C=O, P=O and SO2 centers엄익환Article
2000The origin of the α-effect: Dissection of ground-state and transition- state contributions엄익환Article
2004The α-effect and its modulation by solvent엄익환Article
2009The α-effect and mechanism of reactions of Y-substituted phenyl benzenesulfonates with hydrogen peroxide ion엄익환Article
2014The α-effect in hydrazinolysis of 4-chloro-2-nitrophenyl x-substituted-benzoates: Effect of substituent x on reaction mechanism and the α-effect엄익환Article
2013The α-effect in nucleophilic substitution reactions of Y-substituted-phenyl diphenylphosphinates with HOO- and OH -엄익환Article
2013The α-effect in nucleophilic substitution reactions of Y-substituted-Phenyl X-substituted-cinnamates with Butane-2,3-dione monoximate엄익환Article
2005The α-effect in reactions of sp-hybridized carbon atom: Michael-type reactions of 1-aryl-2-propyn-1-ones with primary amines엄익환Article

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