1133-17-1Relevant articles and documents
-
Ipatieff,Corson
, p. 1417 (1937)
-
Recognition of ionic guests by ionic β-cyclodextrin derivatives
Wenz, Gerhard,Strassnig, Christian,Thiele, Carolin,Engelke, Annegret,Morgenstern, Bernd,Hegetschweiler, Kaspar
experimental part, p. 7202 - 7211 (2009/08/14)
Inclusion compounds of cationic, anionic, and neutral p-substituted derivatives of feri-butylbenzene complexed in β-cyclodextrin and its ionic 6-mono and 6-hepta derivatives were systematically investigated by isothermal titration calorimetry (ITC). All inclusion compounds showed 1:1 stoichiometry with binding constants ranging from 10 to 3 × 106 M -1. The binding free energies could be subdivided into apolar and electrostatic contributions. The electrostatic interactions could be quantitatively described by Coulomb's law by taking into account the degree of protonation of hosts and guests, the orientations of the guests within the hosts, and ion shielding as described by the Debye-Hueckel-Onsager theory. The orientations of the guests within the cyclodextrin cavities were determined by ROESY NMR spectroscopy.
REACTIVITY OF STERICALLY HINDERED DERIVATIVES OF AROMATIC SULFONIC ACIDS II. EFFECTS OF SUBSTRATE STRUCTURE AND MEDIUM POLARITY ON THE HYDROLYSIS OF BENZENESULFONYL CHLORIDES
Vizgert, R. V.,Rubleva, L. I.,Maksimenko, N. N.
, p. 2259 - 2262 (2007/10/02)
The kinetics of the hydrolysis of substituted benzenesulfonyl chlorides XArSO2ClN2 mechanism.