Login / Signup

Specific N-Alkylation of Hydroxypyridines Achieved by a Catalyst- and Base-Free Reaction with Organohalides.

Bin FengYang LiHuan LiXu ZhangHuamei XieHongen CaoLei YuQing Xu
Published in: The Journal of organic chemistry (2018)
A specific N-alkylation of 2-hydroxypyridines is achieved by reacting with organohalides under catalyst- and base-free conditions. The observed HX-facilitated conversion of pyridyl ether intermediates to 2-pyridone products may account for the success and specific N-alkylation of the reaction under the unexpectedly simple conditions. This new reaction may provide a useful alternative for the synthesis of 2-pyridones and analogous structures because of its >99% N-selectivity, relatively broad scopes of both substrates, and no mandatory use of catalysts and bases.
Keyphrases
  • highly efficient
  • ionic liquid
  • room temperature
  • high resolution
  • carbon dioxide
  • electron transfer
  • visible light