Quaternary N-alkyl pyrazole derivatives and their method of preparation are described. The pyrazole derivatives are useful as antimicrobial agents.
本文介绍了四元N-烷基吡唑衍生物及其制备方法。这些吡唑衍生物可用作抗微生物剂。
US4207326A
申请人:——
公开号:US4207326A
公开(公告)日:1980-06-10
Iridium‐Catalyzed Regio‐ and Enantioselective Borylation of Unbiased Methylene C(sp
<sup>3</sup>
)−H Bonds at the Position β to a Nitrogen Center
作者:Rongrong Du、Luhua Liu、Senmiao Xu
DOI:10.1002/anie.202016009
日期:2021.3.8
pyrazole‐directed iridium‐catalyzedenantioselectiveborylation of unbiased methylene C−H bonds at the position β to a nitrogen center. The combination of a chiral bidentate boryl ligand, iridium precursor, and pyrazole directing group was responsible for the high regio‐ and enantioselectivity observed. The method tolerated a vast array of functional groups to afford the corresponding C(sp3)−H functionalization