Experimental and theoretical study on 6-substituted pyridoxine derivatives. Synthesis of cyclic 2,4,5,6-tetrakis-(hydroxymethyl)pyridin-3-ol acetonides
作者:N. V. Shtyrlin、A. B. Dobrynin、T. I. Madzhidov、M. V. Pugachev、L. P. Sysoeva、R. Z. Musin、I. A. Litvinov、E. N. Klimovitskii、Yu. G. Shtyrlin
DOI:10.1134/s107042801101012x
日期:2011.1
Synthetic approaches to three cyclic 2,4,5,6-tetrakis(hydroxymethyl) pyridin-3-ol acetonides were developed. Among seven possible mono- and diketals, six-membered cyclic ketal incorporating the hydroxymethyl group in the 4-position turned out to be the most thermodynamically favorable. The experimental data were consistent with the results of quantum-chemical calculations of the Gibbs energies of formation of different acetonides. The structure of the isolated compounds was studied by X-ray diffraction.