2013 | A kinetic study on aminolysis of benzyl 2-pyridyl thionocarbonate and t-butyl 2-pyridyl thionocarbonate: Effects of polarizability and steric hindrance on reactivity and reaction mechanism | 엄익환 | Article |
2013 | A kinetic study on ethylaminolysis of phenyl y-substituted-phenyl carbonates: Effect of leaving-group substituents on reactivity and reaction mechanism | 엄익환 | Article |
2012 | A kinetic study on nucleophilic substitution reactions of phenyl y-substituted-phenyl carbonates with z-substituted-phenoxides: Effect of modification of nonleaving group from benzoyl to phenyloxycarbonyl on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Alkali-metal ion catalysis and inhibition in SNAr displacement: Relative stabilization of ground state and transition state determines catalysis and inhibition in SNAr reactivity | 엄익환 | Article |
2014 | Alkali-metal ion catalysis and inhibition in snar reaction of 1-halo-2,4-dinitrobenzenes with alkali-metal ethoxides in anhydrous ethanol | 엄익환 | Article |
2014 | Alkali-metal ion catalysis in nucleophilic substitution reactions of 5-Nitro-8-quinolyl picolinate with alkali metal ethoxides: Effect of modification of nonleaving group from benzoyl to picolinyl on reactivity and transition state structure | 엄익환 | Article |
2013 | Aminolysis of benzyl 2-pyridyl thionocarbonate and t-butyl 2-pyridyl thionocarbonate: Effects of nonleaving groups on reactivity and reaction mechanism | 엄익환 | Article |
2013 | Dissection of activation parameters in the bell-shaped α-effect following solvent modulation (DMSO-H2O Media) | 엄익환 | Article |
2014 | K+ ion catalysis in nucleophilic displacement reaction of Y-substituted-phenyl picolinates with potassium ethoxide: Effect of substituent y on reactivity and transition state structure | 엄익환 | Article |
2015 | Kinetic and mechanistic studies on quinuclidinolysis of Y-substituted-phenyl picolinates: Effect of amine nature on reactivity and transition- state structure | 엄익환 | Article |
2015 | Kinetic study on alkaline hydrolysis of Y-substituted phenyl picolinates: Effects of modification of nonleaving group from benzoyl to picolinyl on reactivity and reaction mechanism | 엄익환 | Article |
2015 | Kinetic study on alkaline hydrolysis of Y-substituted phenyl X-substituted benzenesulfonates: Effects of changing nucleophile from azide to hydroxide ion on reactivity and transition-state structure | 엄익환; 한소엽 | Article |
2014 | Kinetic study on aminolysis of 2-chloro-4-nitrophenyl x-substituted-benzoates in acetonitrile and in H2O Containing 20mol% DMSO: Effects of medium and substituent X on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Kinetic study on aminolysis of 4-chloro-2-nitrophenyl X-substituted-benzoates in Acetonitrile and in 80 mol % H2O/20 mol % DMSO: Effect of medium on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Kinetic study on aminolysis of 4-nitrophenyl 2-pyridyl carbonate in acetonitrile: Kinetic evidence for a stepwise mechanism with two intermediates | 엄익환 | Article |
2014 | Kinetic study on aminolysis of y-substituted-phenyl picolinates: Effect of h-bonding interaction on reactivity and transition-state structure | 엄익환 | Article |
2014 | Kinetic study on aminolysis of y-substituted-phenyl x-substituted- benzoates: Effects of substituents x and y on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Kinetic study on nucleophilic displacement reactions of 2-chloro-4-nitrophenyl x-substituted-benzoates with primary amines: Reaction mechanism and origin of the a-effect | 엄익환 | Article |
2013 | Kinetic study on nucleophilic displacement reactions of y-substituted-phenyl 2-methylbenzoates with cyclic secondary amines in acetonitrile: Effects of modification of 2-meo in benzoyl moiety by 2-me on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Kinetic study on nucleophilic substitution reaction of 5-nitro-8-quinolyl benzoate, picolinate, nicotinate and isonicotinate with alkali metal ethoxide: Effect of nonleaving group on reactivity and transition state structure | 엄익환 | Article |
2013 | Kinetic study on nucleophilic substitution reactions of 4-Chloro-2-nitrophenyl X-Substituted-benzoates with cyclic secondary Amines: Effect of substituent X on reactivity and reaction mechanism | 엄익환 | Article |
2014 | Kinetic study on nucleophilic substitution reactions of 4-Nitrophenyl X-Substituted-2-Methylbenzoates with cyclic secondary amines in acetonitrile: Reaction mechanism and failure of reactivity-selectivity principle | 엄익환 | Article |
2014 | Kinetic study on nucleophilic substitution reactions of 4-Nitrophenyl X-Substituted-Benzoates with potassium ethoxide: Reaction mechanism and role of K+ Ion | 엄익환 | Article |
2015 | Kinetic study on quinuclidinolysis of O-4-nitrophenyl X-substituted thionobenzoates and O-3,4-dinitrophenyl thionobenzoate: Effect of amine nature on reactivity and reaction mechanism | 엄익환 | Article |
2015 | Kinetic study on S<inf>N</inf>Ar reactions of 1-(Y-substituted-phenoxy)-2,4-dinitrobenzenes with Azide ion: Effect of changing nucleophile from hydroxide to Azide ion on reaction mechanism and reactivity | 엄익환; 한소엽 | Article |
2014 | Kinetic study on SNAr reaction of 1-(Y-Substituted-phenoxy)-2,4- dinitrobenzenes with cyclic secondary amines in acetonitrile: Evidence for cyclic transition-state structure | 엄익환 | Article |
2017 | Medium effect (water versus MeCN) on reactivity and reaction pathways for the SNAr reaction of 1-aryloxy-2,4-dinitrobenzenes with cyclic secondary amines | 엄익환 | Article |
2013 | Metal-ion catalysis in alkaline ethanolysis of 2-pyridyl thionobenzoate: Effects of modification of electrophilic center from C=O to C=S | 엄익환 | Article |
2015 | Nucleophilic Substitution Reactions of 2,4-Dinitrophenyl X-Substituted-Benzenesulfonates and Y-Substituted-Phenyl 4-Nitrobenzenesulfonates with Azide Ion: Regioselectivity and Reaction Mechanism | 엄익환; 한소엽 | Article |
2013 | Nucleophilic substitution reactions of phenyl y-substituted-phenyl carbonates with butane-2,3-dione monoximate and 4-chlorophenoxide: Origin of the α-effect | 엄익환 | Article |