4214-62-4Relevant academic research and scientific papers
Specific N-Alkylation of Hydroxypyridines Achieved by a Catalyst- and Base-Free Reaction with Organohalides
Feng, Bin,Li, Yang,Li, Huan,Zhang, Xu,Xie, Huamei,Cao, Hongen,Yu, Lei,Xu, Qing
, p. 6769 - 6775 (2018/05/29)
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
Preparation of N-alkyl 2-pyridones via a lithium iodide promoted oto N-alkyl migration: Scope and mechanism
Tasker, Sarah Z.,Bosscher, Michael A.,Shandro, Christina A.,Ryu, Keun Ah,Snapper, Gregory S.,Utter, Jarrad M.,Anderson, Carolyn E.,Lanni, Erica L.,Ellsworth, Bruce A.
, p. 8220 - 8230,11 (2020/10/15)
An efficient and inexpensive LiI-promoted O- to N-alkyl migration of 2-benzyloxy-, 2-allyloxy-, and 2-propargyloxypyridines and heterocycles is reported. The reaction produces the corresponding N-alkyl 2-pyridones and analogues under green, solvent-free conditions in good to excellent yields (30 examples, 20-97% yield). This method has been shown to be intermolecular and requires heat and lithium cation to occur.
Synthesis of substituted N-benzyl pyridones via an O- To N-alkyl migration
Lanni, Erica L.,Bosscher, Michael A.,Ooms, Bartel D.,Shandro, Christina A.,Ellsworth, Bruce A.,Anderson, Carolyn E.
, p. 6425 - 6428 (2008/12/21)
(Chemical Equation Presented) A new LiI-promoted O- to N-alkyl migration has been developed for the conversion of O-alkylated 2-hydroxy pyridines, quinolines, and pyrimidines to the corresponding N-alkylated heterocycles in good to excellent yields (57-99%). This method serves as an efficient means for the preparation of N-benzyl pyridones, quinolones, and pyrimidones.
Structure Investigations on Products from the Reaction of Organocopper, Organolithium and Organomagnesium Reagents with 2(1H)-Pyrimidinones
Rise, Frode,Romming, Christian,Undheim, Kjell
, p. 459 - 468 (2007/10/02)
Alkyl- and arylcuprates and alkyl- and aryllithium and -magnesium reagents form 3,4- or/and 3,6-adducts with 1-benzyl-2(1H)pyrimidinones.The effect of 5-halo substituents on the reactivity and regioselectivity is reported.Structure analyses were made by NMR spectroscopy.Dehydrogenation gives the conjugated, substituted pyrimidinines.X-Ray crystallographic data for 1-benzyl-5-chloro-4-phenyl-2(1H)-pyrimidinone and its regioisomer 1-benzyl-5-chloro-6-phenyl-2(1H)-pyrimidinone are discussed.
