Tautomeric design of ortho-hydroxyheterocyclic Schiff bases
作者： Agnieszka Kwocz , Andrzej Kochel , Dorota Chudoba , Aleksander Filarowski
DOI: 10.1016/J.MOLSTRUC.2014.09.073
关键词:
摘要: Abstract The article reports on the synthesis and crystallographic theoretical studies various heterocyclic derivatives of ortho-hydroxy Schiff bases. prevailing one two (enolimine – OH ketoamine NH) tautomeric forms has been stated in studied compounds depending substitutes formation, nitrogen carbon atoms imine group. A specific situation shown (1E)-1-(5-chloro-2-hydroxy-3-nitrophenyl)ethanone oxime compound. potentials proton transfer hydrogen bridges these have found out. Grounded obtained potential curves influence protonation pyridoxal derivative bases analysed. most efficient method impact (by means substitutes) intramolecular equilibrium presented.
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