Buscar
Mostrando ítems 1-10 de 160
Aromatic nucleophilic substitution in aprotic solvents using hydrogen-bonded biological amines; kinetics studies and quantum chemical calculations
(Wiley, 2015-12)
Intermolecular and intramolecular non-bonding interactions play a crucial role in determining physical and biological properties of relevant amines, and we have recently reported that they are also responsible for changing ...
Specific nucleophile–electrophile interactions in nucleophilic aromatic substitutions
(Royal Society of Chemistry, 2013)
We herein report results obtained from an integrated experimental and theoretical study on aromatic nucleophilic substitution (S(N)Ar) reactions of a series of amines towards 1-fluoro-2,4-dinitrobenzene in water. Specific ...
Specific nucleophile–electrophile interactions in nucleophilic aromatic substitutions
(Royal Society of Chemistry, 2013)
We herein report results obtained from an integrated experimental and theoretical study on aromatic nucleophilic substitution (S(N)Ar) reactions of a series of amines towards 1-fluoro-2,4-dinitrobenzene in water. Specific ...
REACTIVITY AND STERIC EFFECTS IN SNAR REACTIONS OF PYRIDINE AND METHYLPYRIDINES WITH 4-CHLORO-1-ETHYLPYRIDINIUM TETRAFLUOROBORATE
(Royal Soc ChemistryCambridgeInglaterra, 1992)
Nucleophilicity scale for n- and pi-nucleophiles
(ELSEVIER, 2006-08-31)
A recently introduced empirical nucleophilicity index for a series of n- and pi-nucleophiles was evaluated. The index is based on the frontier molecular orbital information of the nucleophile and its electrophilic partner. ...
Nucleophilicity scale for n- and π-nucleophiles
(2006)
A recently introduced empirical nucleophilicity index for a series of n- and π-nucleophiles was evaluated. The index is based on the frontier molecular orbital information of the nucleophile and its electrophilic partner. ...
A further exploration of a nucleophilicity index based on the gas-phase ionization potentials
(ELSEVIER SCIENCE BV, 2008)
An empirical nucleophilicity index based on the gas-phase ionization potentials has been recently shown to be useful categorizing and settling the nucleophilicity power of a series of captodative ethylenes reacting in ...
Synthesis of triaryls: hydroxy and amine dinaphthyl anddiphenanthryl aryls by one-pot electron-transfer nucleophilicsubstitution reactions
(Pergamon-Elsevier Science Ltd., 2014-01)
A new one-pot synthetic route to achieve the preparation of hydroxy and amine binaphthyl and biphenanthryl aryls is here reported. This approach involves the reaction of 1,4-bromoiodobenzene, 4,4′-diiodobiphenyl, and 1,4- ...
Changes in the SNAr reaction mechanism brought about by preferential solvation
(Royal Society of Chemistry, 2015)
We herein report an experimental and theoretical study on preferential solvation effects for the reactions of 1-fluoro and 1-chloro-2,4-dinitrobenzene towards morpholine in acetonitrile, water and mixtures of them of varying ...
Changes in the SNAr reaction mechanism brought about by preferential solvation
(Royal Society of Chemistry, 2015)
We herein report an experimental and theoretical study on preferential solvation effects for the reactions of 1-fluoro and 1-chloro-2,4-dinitrobenzene towards morpholine in acetonitrile, water and mixtures of them of varying ...