NOVEL METHODS FOR PREPARATION OF SUBSTITUTED PYRIDINES AND RELATED NOVEL COMPOUNDS
申请人:Watkins Edmond Blake
公开号:US20200095245A1
公开(公告)日:2020-03-26
The present invention relates to novel methods of preparation of substituted pyridines and the compounds produced therefrom. In particular, the present invention provides efficient methods for the construction of diversely substituted pyridines, with varying substitution patterns under simple and metal-free conditions with high atom- and pot-economy and excellent functional group tolerance, and which are useful for the synthesis of natural products.
Selective Fluoromethyl Couplings of Alkynes via Nickel Catalysis
作者:Huan Li、Fang Wang、Shengqing Zhu、Lingling Chu
DOI:10.1002/anie.202116725
日期:2022.2.21
A nickel-catalyzedthree-component carbo-fluoromethylation of alkynes with aliphatic halides and BrCF2H or ICH2F in the presence of zinc is described. This process is based on a nickel-mediated radical addition/fluoromethyl coupling domino strategy and provides selective access to a diverse range of biologically valuable CF2H- and CH2F-substituted alkenes with excellent regio- and stereoselectivity
描述了在锌存在下,炔烃与脂肪族卤化物和 BrCF 2 H 或 ICH 2 F 的镍催化三组分碳氟甲基化反应。该过程基于镍介导的自由基加成/氟甲基偶联多米诺策略,并提供对具有优异区域选择性和立体选择性的多种具有生物价值的 CF 2 H-和 CH 2 F-取代烯烃的选择性访问。
Methods for preparation of substituted pyridines and related novel compounds
申请人:Watkins Edmond Blake
公开号:US11117893B2
公开(公告)日:2021-09-14
The present invention relates to novel methods of preparation of substituted pyridines and the compounds produced therefrom. In particular, the present invention provides efficient methods for the construction of diversely substituted pyridines, with varying substitution patterns under simple and metal-free conditions with high atom- and pot-economy and excellent functional group tolerance, and which are useful for the synthesis of natural products.