Synthesis and molecular structure of 2,4,8a-triaryl-6-methylperhydro[1,3,2] dioxaborinino[5,4-c]pyridines

Condensation of arylboronic acids with 4-hydroxy-3-(α-hydroxybenzyl)- 1-methyl-4-phenylpiperidine afforded 2,4,8a-triarylperhydro[1,3,2] dioxaborinino[5,4-c]pyridines. The molecular structure of 6-methyl-2,4,8a- triphenylperhydro[1,3,2]dioxaborinino[5,4-c]pyridine was established by X-ray diffraction analysis.