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Organo-boron compoundsS 0040 Synthesis and Molecular Structure of Substituted 2-Hydroxyperhydro[1,3,2]di-

oxaborinino[5,4-c]pyridines, Perhydro[1,3]dioxano[5,4-c]pyridine, and Their Precursor — 4-Hydroxy-3-(α-hydroxybenzyl)-1-methyl-4-phenylpiperidine. — Title perhydropyridines [(III), (V) and (VI)] are synthesized starting from piperidine (I) and their molecular and crystal structures are determined by X-ray crystallography. In-terestingly, formation of dioxanopiperidine (III) is accompanied by an inversion at the C-8 phenyl position. — (ANH, L. T.; SOLDATENKOV*, A. T.; MAMYRBEKOVA, Z. A.; SOLDATOVA, S. A.; POLYANSKIY, K. B.; TUNG, T. T.; KHRUSTALEV, V. N.; Chem. Heterocycl. Compd. (N. Y.) 44 (2008) 11, 1404-1412; People's Friendship Univ., Moscow 117198, Russia; Eng.) — R. Langenstrassen

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