PYRAZOLE SYNTHESIS BY COUPLING OF CARBOXYLIC ACID DERIVATIVES AND ENAMINES
申请人:Neumann Julia
公开号:US20130012715A1
公开(公告)日:2013-01-10
The invention describes a novel process for synthesizing pyrazoles by means of oxidative conversion of enamines with suitable N-containing carboxylic acid derivatives.
这项发明描述了一种通过氧化转化烯胺和适当的含氮羧酸衍生物合成吡唑的新方法。
US8716485B2
申请人:——
公开号:US8716485B2
公开(公告)日:2014-05-06
An efficient copper-catalyzed formation of highly substituted pyrazoles using molecular oxygen as the oxidant
作者:Mamta Suri、Thierry Jousseaume、Julia J. Neumann、Frank Glorius
DOI:10.1039/c2gc35476d
日期:——
An efficient Cu-catalyzed formation of tetra-substituted pyrazoles is reported. In this atom economic process, readily available enamines and nitriles are reacted by C–C and N–N bond formation. Oxygen has been successfully used as the oxidant, which has important economic and environmental advantages. A broad scope of enamines and nitriles can be utilized in this process.