A facile one-pot synthesis of 2,3,6-trisubstituted pyridine derivatives from bicyclic ketal by using TMSOMs (5 equiv.)-BF3·Et2O (1 equiv.)
作者:Jong-Gab Jun、Tae Hee Ha、Dae-Whang Kim
DOI:10.1016/0040-4039(94)88032-8
日期:1994.2
TMSOMs (5equiv.)-BF3·Et2O (1equiv.) complex was studied for the selective cleavage of bicyclicketal and a useful method was found for the preparation of 2,3,6-trisubstitutedpyridine in good yield. The bicyclicketal was cleaved and rearranged to 1,5-diketone which was then reacted with nitrile affording pyridine as a sole product in one-flask.