A5039808795- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Catalytic Cross-Coupling Reactions
- Asymmetric Hydrogenation and Catalysis
- Sulfur-Based Synthesis Techniques
- Chemical Synthesis and Reactions
- Radical Photochemical Reactions
- Oxidative Organic Chemistry Reactions
- Chemical Synthesis and Analysis
- Cyclopropane Reaction Mechanisms
- Organoboron and organosilicon chemistry
- Fluorine in Organic Chemistry
- Asymmetric Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Catalytic Alkyne Reactions
- Click Chemistry and Applications
- Synthesis and Biological Evaluation
- Innovative Microfluidic and Catalytic Techniques Innovation
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and biological activity
- Synthesis of Organic Compounds
- Ginger and Zingiberaceae research
- Chemical Synthesis and Characterization
- Nonlinear Optical Materials Studies
Guizhou University
2021-2025
Shanghai Ninth People's Hospital
2024-2025
Shanghai Jiao Tong University
2001-2025
Sichuan University
2010-2025
West China Hospital of Sichuan University
2021-2025
Jinan University
2021-2025
Hubei University
2024-2025
Guangzhou Medical University
2024
Henan Agricultural University
2024
Anhui Agricultural University
2024
Catalytic C–H activation has emerged as a powerful tool for sustainable syntheses. In the recent years, notable success was achieved with development of cobalt-catalyzed functionalizations either in situ generated or single-component cobalt-complexes under mild reaction conditions. Herein, progress field organometallic is reviewed until November 2015.
Effective and selective removal of 99TcO4– from aqueous solution is highly desirable for both waste partitioning contamination remediation purposes in the modern nuclear fuel cycle, but significant challenge. We report here a hydrolytically stable radiation-resistant cationic metal–organic framework (MOF), SCU-101, exhibiting extremely fast kinetics, exceptional distribution coefficient, high sorption capacity toward TcO4–. More importantly, this material can selectively remove TcO4–...
Recent advances in transition-metal catalyzed positional-selective alkenylations <italic>via</italic> twofold C–H activation directed by removable or traceless directing groups are reviewed.
Acylated amino acid ligands enabled ruthenium(II)-catalyzed C-H functionalizations with excellent levels of meta-selectivity. The outstanding catalytic activity the ruthenium(II) complexes derived from monoprotected acids (MPAA) set stage for first ruthenium-catalyzed meta-functionalizations removable directing groups. Thereby, meta-alkylated anilines could be accessed, which are difficult to prepare by other means direct aniline functionalizations. robust nature versatile ruthenium(II)-MPAA...
Abstract Carboxylate assistance proved to be the key for success of efficient cobalt(III)‐catalyzed CH cyanations. Thus, an in situ generated cationic cobalt complex was identified as a versatile catalyst site‐selective synthesis various aromatic and heteroaromatic nitriles with ample substrate scope.
Abstract Direct removal of 99 TcO 4 − from the highly acidic solution used nuclear fuel is beneficial for recovery uranium and plutonium more importantly aids in elimination Tc discharge into environment. However, this task represents a huge challenge given combined extreme conditions super acidity, high ionic strength, strong radiation field. Here we overcome using cationic polymeric network with significant uptake capabilities four aspects: fastest sorption kinetics, highest capacity, most...
Expedient C-H aminocarbonylations of unactivated (hetero)arenes and alkenes were accomplished with a cobalt(III) catalyst that shows high functional group tolerance. The functionalization occurred excellent chemo-, site-, diastereoselectivity enabled step-economical reactions isocyanates or acyl azides.
We report one of the most efficient scavenger materials, a cationic crystalline coordination polymer SBN for trapping ReO4–, surrogate 99TcO4–, as an anionic radioactive contaminant great concern. The uptake capacity ReO4– reaches 786 mg/g, value noticeably higher than state art anion-exchange resins and other inorganic or hybrid anion sorbents. Once being captured, is greatly immobilized, almost no can be eluted using large excess nitrate, carbonate, phosphate anions. processes are featured...
Direct removal of 99TcO4– from alkaline nuclear waste is desirable because the management and environmental protection relevant to energy but yet be achieved given that combined features decent base-resistance high uptake selectivity toward anions with low charge density have not been integrated into a single anion-exchange material. Herein, we proposed strategy overcoming these challenges by rationally modifying imidazolium unit cationic polymeric network (SCU-CPN-4) bulky alkyl groups...
Based on the basic idea of expanding interlayer spacing MXene, utilizing effect gallic acid-modified cellulose nanofibers for rapid moisture separation, flexible sensing and driving composite film with a perfect balance among humidity signal response mechanical properties was prepared. Inspired by stacking autumn fallen leaves, nanofibers-based films were formed self-assembly under vacuum filtration blending MXene. The enhanced (tensile strength 131.1 MPa, puncture load 0.88 N, tearing...
The prodrug design strategy offers a potent solution for improving therapeutic index and expanding drug targets. However, current activation designs are mainly responsive to endogenous stimuli, resulting in unintended release systemic toxicity. In this study, we introduce 3-vinyl-6-oxymethyl-tetrazine (voTz) as an all-in-one reagent modular preparation of tetrazine-caged prodrugs chemoselective labeling peptides produce bioorthogonal activable peptide-prodrug conjugates. These stable can...
Using a temperature-dependent synthetic approach, four distinct new silver(I) coordination polymers resulting from the different conformations adopted by flexible ligand at temperatures were obtained.
Cationic ruthenium(II) complexes enabled efficient redox-neutral annulations of alkynes with readily available oximes. The catalytic dehydrative C-H/N-O bond functionalization proved to be broadly applicable and was shown proceed through a reversible cyclometalation.
Carboranyl aldehydes are among the most useful synthons in derivatization of carboranes. However, compared to utilization carboranyl carboxylic acids selective B–H bond functionalizations, synthetic application is limited due weakly coordinating nature aldehyde group. Herein, direct arylation o-carboranyl has been developed via Pd-catalyzed cage functionalization. With help glycine generate a directing group (DG) situ, series B(4,5)-diarylated- and B(4)-monoarylated-o-carboranyl were...
A cobalt(III)-catalyzed C–H/N–H bond functionalization for the synthesis of 1-aminoisoquinolines from aryl amidines and diazo compounds has been developed. The reaction proceeds under mild conditions, obviates need oxidants, produces only N2 H2O as byproducts, features a broad substrate scope.
Abstract The full control of positional selectivity is prime importance in C–H activation technology. Chelation assistance served as the stimulus for development a plethora ortho -selective arene functionalizations. In sharp contrast, meta functionalizations continue to be scarce, with all ruthenium-catalysed transformations currently requiring difficult remove or modify nitrogen-containing heterocycles. Herein, we describe unifying concept access wealth -decorated arenes by unique ligand...
Efficient cobalt(III)-catalyzed (hetero)aryl and alkenyl C–H hydroarylations of maleimides maleate esters have been achieved under remarkably mild reaction conditions. Thus, the versatile cobalt(III) catalyst [Cp*CoI2(CO)] showed excellent atom−and step−economy as well high chemo- site-selectivity providing expedient access to pharmacologically useful succinimides with wide functional group tolerance.
Selenium is of great concern owing to its acutely toxic characteristic at elevated dosage and the long-term radiotoxicity 79Se. The contents selenium in industrial wastewater, agricultural runoff, drinking water have be constrained a value 50 μg/L as maximum concentration limit. We reported here uptake using structurally well-defined cationic layered rare earth hydroxide, Y2(OH)5Cl·1.5H2O. sorption kinetics, isotherms, selectivity, desorption selenite selenate on Y2(OH)5Cl·1.5H2O pH 7 8.5...
Abstract Cationic ruthenium complexes derived from KPF 6 or AgOAc enabled efficient oxidative CH functionalizations on aryl and heteroaryl amidines. Thus, annulations of diversely decorated internal alkynes provided expedient access to 1‐aminoisoquinolines, while catalyzed activations with substituted acrylates gave rise structurally novel 1‐iminoisoindolines. The powerful ruthenium(II) catalysts displayed a remarkably high site‐, regio‐ and, chemoselectivity. Therefore, the catalytic...
Abstract Carboxylate assistance proved to be the key for success of efficient cobalt(III)‐catalyzed CH cyanations. Thus, an in situ generated cationic cobalt complex was identified as a versatile catalyst site‐selective synthesis various aromatic and heteroaromatic nitriles with ample substrate scope.
A novel visible-light-induced carboperfluoroalkylation of alkenes using perfluoroalkyl iodides and bromides as Rf sources, leading to isoquinoline-1,3-diones, was developed. This method offers rapid entry perfluorinated isoquinoline-1,3(2H,4H)-diones from N-alkyl-N-methacryloyl benzamides under mild reaction conditions, allowing for the incorporation a wide variety groups such CF3, C3F7, C4F9, C6F13, C8F17, C10F21, CF2CO2Et.
The reaction of various organozinc pivalates with anthranils provides anilines derivatives, which cyclize under acidic conditions providing condensed quinolines. Using alkenylzinc pivalates, electron-rich arylzinc or heterocyclic zinc produces directly the quinolines several structures belong to new scaffolds. These N-heterocycles are particular interest for organic light emitting diodes their high photoluminescence quantum yields and long exciton lifetimes as well hole-transporting...