Alkylation of Pyridines at Their 4-Positions with Styrenes plus Yttrium Reagent or Benzyl Grignard Reagents
作者:Tomoya Mizumori、Takeshi Hata、Hirokazu Urabe
DOI:10.1002/chem.201404635
日期:2015.1.2
A new regioselective alkylation of pyridines at their 4‐position was achieved with styrenes in the presence of yttrium trichloride, BuLi, and diisobutylaluminium hydride (DIBAL‐H) in THF. Alternatively, similar products were more simply prepared from pyridines and benzyl Grignardreagents. These reactions are not only a useful preparation of 4‐substituted pyridines but are also complementary to other