Nano‐magnetitesupportedN‐heterocycliccarbene‐coppercomplex with wingtipferrocene has been prepared via multi‐step procedure. The complex has been characterized by various analytical techniques such as fourier transform infrared (FT‐IR), fourier transform Raman (FT‐Raman), X‐ray photoelectron spectroscopy (XPS), X‐ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample
Efficient Cu-catalyzed intramolecular <i>O</i>-arylation for synthesis of benzoxazoles in water
作者:Yanling Tang、Minxin Li、Hui Gao、Gaoxiong Rao、Zewei Mao
DOI:10.1039/d0ra00570c
日期:——
An efficient method was developed for synthesis of benzoxazoles by Cu-catalyzed intramolecular O-arylation of o-halobenzanilides in water. This strategy provides several advantages, such as high yields, water as a green solvent and functional groups tolerance.
Copper-catalyzed regioselective 2-amination of o-haloanilides with aqueous ammonia
作者:Yan-Ling Tang、Mei-Ling Li、Jin-Chun Gao、Yun Sun、Lu Qu、Feng Huang、Ze-Wei Mao
DOI:10.1016/j.tetlet.2021.153001
日期:2021.4
An efficient Cu(II)-vasicine catalytic system has been developed for intramolecular CN bond formation. In this way, regioselective 2-amination of o-haloanilides with aqueous ammonia in EtOH has been achieved. This strategy provides several advantages, such as good regioselectivity, high yields and functional group tolerance.