2008 | Reaction Mechanism and Structure of Transition State Determined from Analysis of Bronsted beta(nuc) for Aminolysis of 4-Nitrophenyl Diphenylphosphinate | 엄익환 | Article |
2003 | Regioselectivity and the nature of the reaction mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with primary amines | 엄익환 | Article |
2002 | Reinterpretation of curved hammett plots in reaction of nucleophiles with aryl benzoates: Change in rate-determining step or mechanism versus ground-state stabilization | 엄익환 | Article |
2001 | Remarkable catalytic effect of H+ in Michael-type additions of anilines to 3-butyn-2-one | 엄익환 | Article |
2015 | S<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 inhibition | 엄익환 | Article |
2003 | Significant and differential acceleration of dephosphorylation of the insecticides, paraoxon and parathion, caused by alkali metal ethoxides | 엄익환 | Article |
1992 | Solvent effect on rate for anionic nucleophilic substitution reaction of 4-nitrophenyl acetate in aqueous acetonitrile | 권동숙; 엄익환 | Article |
2001 | Solvent effect on the α-effect for the reactions of aryl acetates with butane-2,3-dione monoximate and p-chlorophenoxide in MeCN-H2O mixtures | 엄익환 | Article |
2006 | Solvent effect on the α-effect: Ground-state versus transition-state effects; a combined calorimetric and kinetic investigation | 엄익환 | Article |
2013 | Structure-reactivity correlations in nucleophilic displacement reactions of Y-substituted-phenyl X-substituted-cinnamates with Z-substituted-phenoxides | 엄익환 | Article |
2006 | Structure-reactivity correlations in nucleophilic substitution reactions of Y-substituted phenyl X-substituted benzoates with anionic and neutral nucleophiles | 엄익환 | Article |
1999 | Structure-reactivity correlations in the reaction of 2,4-dinitrophenyl X-substituted benzoates with alicyclic secondary amines | 엄익환 | Article |
2015 | The alpha-effect in the SNAr reaction of 1-(4-nitrophenoxy)-2,4-dinitrobenzene with anionic nucleophiles: effects of solvation and polarizability on the alpha-effect | 엄익환 | Article |
2001 | The catalytic effect of alkali metal ions on reactions of 8-(5-nitroquinolyl) 2-furoate with alkali metal ethoxides in anhydrous ethanol | 엄익환 | Article |
1997 | The Effect of Acyl Substituent on the α-Effect in the Aminolysis of p-Nitrophenyl X-Substituted Benzoates | 권동숙; 엄익환 | Article |
2001 | The effect of acyl substituents on the α-effect: Contrasting α-effect profiles for reactions of 4-nitrophenyl substituted benzoates with neutral and anionic nucleophiles | 엄익환 | Article |
1998 | The 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 Ethanol | 엄익환 | Article |
1997 | The Effect of Alkali Metal Ions on Nucleophilic Substitution Reactions of Alkali Metal Ethoxides with S-p-nitrophenyl 2-thiofuroate and 2-Thiophenethiocarboxylate in Absolute Ethanol | 권동숙; 엄익환 | Article |
1996 | The effect of alkali metal ions on nucleophilic substitution reactions of p- and m-nitrophenyl 2-thiophenenates with alkali metal ethoxides in absolute ethanol | 권동숙; 엄익환 | Article |
2001 | The effect of alkali metal ions on reactions of 8-(5-nitroquinolyl) 3-furoate with alkali metal ethoxides in anhydrous ethanol | 엄익환 | Article |
1992 | The effect of alkali metal ions on the reaction of 4-nitrophenyl diphenylphosphinate with aryloxides in ethanol | 권동숙; 안병태; 엄익환 | Article |
2003 | The effect of medium on rate and mechanism: Aminolysis of O-4-nitrophenyl thionobenzoate in MeCN and H2O | 엄익환 | Article |
2002 | The effect of medium on the alpha-effect: Nucleophilic substitution reaction of p-nitrophenyl diphenyl phosphinate with butane-2,3-dione monoximate and substituted phenoxides in cationic micelles | 엄익환; 임진경 | Article |
1999 | The effect of solvent on reaction rates and equilibria for the reactions of p-nitrophenyl acetate with alicyclic secondary amines in H2O and DMSO | 엄익환 | Article |
1996 | The effect of solvent on reactions of p-nitrophenyl acetate with alicyclic secondary amines and with anionic nucleophiles in MeCN-H2O mixtures of varying compositions | 권동숙; 엄익환 | Article |
2001 | The effect of solvent on the alpha-effect: C=O, P=O and SO2 centers | 엄익환 | Article |
2000 | The effect of solvent on the alpha-effect: the MeCN-H2O solvent system | 엄익환 | Article |
1995 | The effect of solvent on the α-effect: Abnormal nucleophilic reactivity of substituted acetophenone oximate anions in aqueous DMSO | 권동숙; 엄익환 | Article |
2001 | The effect of solvent on the α-effect: C=O, P=O and SO2 centers | 엄익환 | Article |
2000 | The origin of the alpha-effect: Reactions of p-nitrophenyl X-substituted benzenesulfonates with butane-2,3-dione monoximate and p-chlorophenoxide | 엄익환 | Article |