A5016066470- Catalytic C–H Functionalization Methods
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Shenzhen University
2022-2025
Beijing University of Technology
2017-2025
Yangzhou University
2023-2025
Tsinghua University
2025
Zhengzhou University of Aeronautics
2024
Henan University of Technology
2024
Shandong University
2024
Liaoning University of Traditional Chinese Medicine
2023
China University of Mining and Technology
2014-2023
University of Jinan
2022-2023
Open AccessCCS ChemistryMINI REVIEW1 Apr 2022Recent Applications of Homogeneous Catalysis in Electrochemical Organic Synthesis Xu Cheng†, Aiwen Lei†, Tian-Sheng Mei†, Hai-Chao Xu†, Kun Xu† and Chengchu Zeng† Cheng† *Corresponding authors: E-mail Address: [email protected] School Chemistry Chemical Engineering, Nanjing University, 210023 †X. Cheng, A. Lei, T. Mei, H. Xu, K. C. Zeng contributed equally to this work.Google Scholar More articles by author , Lei† College Molecular Sciences,...
An efficient electrochemical approach for the C(sp<sup>2</sup>)–H phosphonation of quinoxalin-2(1<italic>H</italic>)-ones and C(sp<sup>3</sup>)–H xanthenes has been developed.
Abstract Three-dimensional (3D) grid porous electrodes introduce vertically aligned pores as a convenient path for the transport of lithium-ions (Li-ions), thereby reducing total distance Li-ions and improving reaction kinetics. Although there have been other studies focusing on 3D fabricated by printing, still exists gap between electrode design their electrochemical performance. In this study, we try to bridge through comprehensive investigation effects various parameters including...
Abstract As an alternative to bulk counterparts, metal–organic framework (MOF) nanoparticles isolated within conductive mesoporous carbon matrices are of increasing interest for electrochemical applications. Although promising, a “clean” surface is generally associated with poor compatibility and weak interactions metal/ligand precursors, which leads the growth MOFs inhomogeneous particle sizes on outer pore walls. Here, general methodology in situ synthesis eight nanoMOF composites...
Electrochemical generation of N-acyloxy amidyl radicals via an inner-sphere electron-transfer process is described for the first time. With NaBr as catalyst and electrolyte, in situ generated undergo intramolecular C(sp2/sp3)-H aminations to give lactams with unprecedented regio- chemoselectivities. Moreover, synthetic utility current method demonstrated by synthesis PJ34 Phenaglaydon.
An electrochemical C–H acylation of electron-deficient N-heteroarenes with α-keto acids is reported. This first Minisci reaction proceeded using NH4I as a redox catalyst. A broad N-heteroarene scope and high functional group tolerance are observed. Selective monoacylation achieved via control acyl radical at low concentration. The results cyclic voltammetry experiments disclose that the electrogenerated I2 likely active species to initiate oxidative decarboxylation carboxylate anion an...
A practical, electrochemical method is developed for the direct dehydrogenative lactonization of C(sp2/sp3)–H bonds under external oxidant- and metal-free conditions, delivering diverse lactones, including coumarin derivatives with excellent regioselectivity. The scalable nature this newly process was demonstrated on a 40 g scale following an operationally simple protocol. remote C(sp3)–H would constitute important synthetic advance toward C–O bond formation.
Go tandem! The first example of the direct amidation alcohols with N-substituted formamides has been developed. A series tertiary amides, including challenging N,N-dimethyl-substituted were obtained in moderate to good yields under transition-metal-free conditions (see scheme). TBHP=tert-butyl hydroperoxide. Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by...
Electrochemical fluoromethylation triggered lactonizations of alkenes were achieved under chemical oxidant-, catalyst- and additional supporting electrolyte-free conditions.
A highly efficient synthesis of trans-alkenylazaarene under catalyst-free conditions was developed via the addition methylazaarenes to N-sulfonyl aldimines and a subsequent C–N elimination in situ. one-pot procedure for this addition–elimination also developed. The reaction could tolerate broad substrate scope give corresponding alkenylazaarenes high yields.
Abstract Arylation of carbonyls, one the most common approaches toward alcohols, has received tremendous attention, as alcohols are important feedstocks and building blocks in organic synthesis. Despite great progress, there is still a gap to develop an ideal arylation method featuring mild conditions, good functional group tolerance, readily available starting materials. We now show that electrochemical can fill gap. By taking advantage synthetic electrochemistry, commercially aldehydes...
An electrochemical methodology for the Minisci-type trifluoromethylation of electron-deficient heterocycles mediated by cheap and easily available bromide ions has been developed.
An electro-generated trifluoromethyl radical mediated by a bromide ion is efficiently applied to the trifluoromethylarylation/cyclization of <italic>N</italic>-arylacrylamides.
Abstract The α‐C–H functionalization of carbonyl compounds represents a cornerstone organic chemistry. Site‐selective α‐C−H bond to afford more versatile functionalized groups has become promising strategy for atom‐economical C−C and C−X formation. Organic electrosynthesis is revolutionizing the nature synthesis, this field seen explosive growth in recent years. In review, we discuss advances use electrochemistry oxidative published since 2000. magnified image
Abstract An efficient protocol for the synthesis of 3‐aminoquinoxalinones via electrochemical dehydrogenative C‐3 amination quinoxalin‐2(1 H )‐ones was developed. With aliphatic amines and azoles as nitrogen sources, a series obtained in up to 99% yield. This direct electrolytic method avoids use transition metals external oxidants, represents an appealing alternative 3‐aminoquinoxalinones. magnified image
An efficient and practical (hetero)benzylic sp3 C-H oxidation method has been developed. Notably, this user-friendly protocol employs inexpensive potassium tert-butoxide (KOtBu) as a promoter proceeds under mild conditions using oxygen the oxidant. A large variety of products were prepared in good to excellent yields. The utility "green" methodology was further demonstrated by scale-up preparation biologically valued molecule.
The first example of electrochemically enabled, NiCl<sub>2</sub>-catalyzed reductive decarboxylative coupling <italic>N</italic>-hydroxyphthalimide esters with quinoxalinones was developed.
Open AccessCCS ChemistryRESEARCH ARTICLE1 May 2022Electrophotocatalytic Si–H Activation Governed by Polarity-Matching Effects Yangye Jiang, Kun Xu and Chengchu Zeng Jiang Faculty of Environment Life, Beijing University Technology, 100124 , *Corresponding authors: E-mail Address: [email protected] https://doi.org/10.31635/ccschem.021.202101010 SectionsSupplemental MaterialAboutAbstractPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Trialkylsilanes...
The Minisci alkylation of N-heteroarenes with unactivated alkanes under external oxidant-free conditions provides an economically attractive route to access alkylated but remains underdeveloped. Herein, a new electrophotocatalytic strategy alkyl radicals from strong C(sp3 )-H bonds was reported for the following reactions in absence chemical oxidants. This realized first example cerium-catalyzed reaction directly abundant excellent atom economy. It is anticipated that general design...