14613-33-3Relevant articles and documents
A supramolecular hydrogel derived from a simple organic salt capable of proton conduction
Chakraborty, Poulami,Das, Bikash,Pal, Pulak,Datta, Subhadeep,Bera, Sourabh,Dastidar, Parthasarathi
supporting information, p. 5251 - 5254 (2020/07/30)
The supramolecular hydrogel of a simple organic salt derived from a primary amine and a mono-sulfonic acid displayed a proton conductivity of 1.2 × 10-4 S cm-1. The hitherto unknown example of the supramolecular gel displaying proton conductivity provides
Cross Interaction Constants As a Measure of Transition State structure. Part 7. Aminolysis of Alkyl Benzenesulphonates
Lee, Ikchoon,Choi, Young Hoon,Rhyu, Keun Woo,Shim, Chang Sub
, p. 1881 - 1886 (2007/10/02)
Kinetic studies of the reactions of methyl and ethyl benzenesulphonates with anilines and benzylamines in methanol and acetonitrile at 65.0 deg C have been reported.The magnitudes of cross-interaction constants between substituents in the nucleophile (X) and the leaving group (Z),ρxz and βxz, were found to be greater for the ethyl series which indicates a tighter transition state for ethyl rather than methyl derivatives.This unexpected trend has been rationalized by making the assumption that the small electron-donating polar effect, of the α-methyl substituent in the ethyl compounds, requires a tighter transition-state structure in addition to the major effect of steric repulsion on the activation barrier which is present in all SN2 reactions taking place at a carbon centre.
