Abstract
This review is composed of several chapters dealing with research on the o-hydroxy aryl Schiff bases. The introduction comments on modern problems of quasi-aromatic formation which participates in o-hydroxy aryl Schiff bases as well as some potential applications of compounds of this type. The main part of the paper describes quantummechanical calculations of potential curves, electron-topological parameters depending on tautomeric equilibrium, the influence of substitution in the phenol ring and imine moiety, and the influence of environment on the potential curves. A difference between the impact of steric effect in o-hydroxy aryl Schiff bases and o-hydroxy benzoyl compounds is presented based on calculations of potential curve. A method of calculating the isotopic effect is described. A scheme of the “thermodynamic cycle” is presented estimating steric interrelations in the molecule and, in particular, the intramolecular hydrogen bonding energy.
Keywords: Schiff Bases, Hydrogen Bonding, Intramolecular, o-hydroxy aryl, isotopic effect
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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