Site-Selective Copper-Catalyzed Amination and Azidation of Arenes and Heteroarenes via Deprotonative Zincation
作者:Charles E. Hendrick、Katie J. Bitting、Seoyoung Cho、Qiu Wang
DOI:10.1021/jacs.7b07661
日期:2017.8.23
effective for a wide range of arenes, including nonactivated arenes bearing simple functionalities such as fluoride, chloride, ester, amide, ether, nitrile, and trifluoromethyl groups as well as heteroarenes including indole, thiophene, pyridine, and isoquinoline. An analogous C-H azidation is also accomplished using azidoiodinane for direct introduction of a useful azide group onto a broad scope of arenes
Copper-catalyzed electrophilic amination of sodium sulfinates at room temperature
作者:Haibo Zhu、Yajing Shen、Qinyue Deng、Tao Tu
DOI:10.1039/c5cc06069a
日期:——
By using O-benzoyl hydroxylamines as amine source, the first convenient copper-catalyzed electrophilic amination of sodium sulfinates has been realized. Even with 2 mol% catalyst loading, the protocol provided an efficient...
Copper-Catalyzed Electrophilic Amination of Benzoxazoles via Magnesation
作者:Sangback Lee、Yunmi Lee
DOI:10.1002/ejoc.201900335
日期:2019.5.26
A mild and efficient method for the synthesis of 2‐aminobenzoxazoles through a Cu‐catalyzed electrophilicamination of benzoxazole derivatives with O‐benzoyl hydroxylamines by direct magnesation has been developed.
Direct Synthesis of Sulfinamides by the Copper-Catalyzed Electrophilic Amidation of Sulfenate Anions
作者:Qiang Dai、Junliang Zhang
DOI:10.1002/adsc.201701510
日期:2018.3.20
A method for the construction of sulfinamides via the copper‐catalyzedelectrophilic amination of sulfenate anions usingN‐benzoyloxyamines as the amination reagents. This procedure featured with the capture of in‐situ generated sulfenate anions from β‐sulfinyl esters under mild conditions, which provides an efficient strategy for the synthesis of diverse sulfinamides in moderate to good yields.
Both copper‐ and cobalt‐catalyzed aminations of arylzincs using N‐benzoyloxy amines are possible. Thus, thienylzincs prepared by transmetalation from thienylmagnesium halides obtained by various methods including deprotometalation were aminated with success. In addition, triarylamines were prepared from aminothiophenes by consecutive copper‐catalyzed N‐arylations using iodoarenes.