Intramolecular general base and intermolecular nucleophilic catalysis of carbonate ester hydrolysis. Hydrolysis of ethyl 2-hydroxy-5-nitrophenyl carbonate
EDT-TTF-CONHCatOH, a catechol-appended TTF derivative, 5 was synthesized through a straightforward strategy. The electronic absorption and the electrochemical investigations as well as molecular orbital calculations for compounds 4 and 5 have been performed. The electrochemical measurements of 5 indicate that it is a suitable candidate for the formation of zwitterionic molecular solids and also two-component radical cation salts. The crystal structure of compound 5 reveals supramolecular dimers assembled via a set of O-H center dot center dot center dot O hydrogen bonds between the catechol and amide units. (C) 2013 Elsevier Ltd. All rights reserved.
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Transition-state structures for the hydrolysis of cyclic and acyclic carbonates