Wen Xia

Northeastern University

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Xianyong Yu

Hunan University of Science and Technology

Yan Xiong

Nanchang Hangkong University

Wei‐Min He

University of South China

Xiaohui Zhang

Peking University

Liangzhen Hu

Chongqing University

Xinhua Xu

Hunan University

Jiaqi Cao

Chongqing University

Ke Zhu

Wuhan University of Technology

Jie Zhang

Hunan University of Science and Technology

Shaowei Zhang

Hunan University of Science and Technology

Cooperative Institutions

Chongqing University

Chinese Academy of Sciences

Hunan University of Science and Engineering

Hunan University

University of Electronic Science and Technology of China

Yong In University

Sichuan Research Center of New Materials

Hunan University of Science and Technology

Zhejiang University

State Key Laboratory of Chemobiosensing and Chemometrics

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Metal-free deoxygenative sulfonylation of quinoline N-oxides with sodium sulfinates via a dual radical coupling process

Organic Chemistry Frontiers (2018)

Long‐Yong Xie Sha Peng Fang Liu Guanrong Chen Wen Xia

The first example of a metal- and reductant-free deoxygenative sulfonylation of quinoline N-oxides with sodium sulfinates via a dual radical coupling process is reported.

Quinoline

Dual role

10.1039/c8qo00661j

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Citations (138)

Crystal structure and NMR study of a bisperoxovanadium complex [NH₄][VO(O₂)₂(ima)]

Journal of Coordination Chemistry (2017)

Shaowei Zhang Wen Xia Yueyue Yang Xianyong Yu Xiaofang Li

A novel bisperoxovanadium complex, [NH4][VO(O2)2(ima)] (1) (ima = imidazole-4-carboxamide), was synthesized by the reaction of NH4VO3 and ima in the presence of H2O2, and the structure was characterized by single-crystal X-ray technology. The adjacent [NH4][VO(O2)2(ima)] monomers further constructed a 3-D supramolecular framework through intra- and intermolecular hydrogen bonding interactions. The composition of the title complex solution was explored using a combination of multinuclear (1H, 13C and 51V) magnetic resonance, heteronuclear single quantum coherence (HSQC), and variable temperature NMR in a 0.15 mol L−1 NaCl/D2O solution that mimics physiological conditions. According to NMR experimental results, a pair of isomers (Isomers A and B) are observed in aqueous solution, which are attributed to different types of coordination modes between the metal center and the ligands; Isomer B (the main product) has the same coordination structure as the crystal structure of [NH4][VO(O2)2(ima)]. The 51V NMR experiment together with single-crystal X-ray diffraction results indicated that Isomer A is the hexa-coordinated peroxovanadium species while Isomer B is the hepta-coordinated species.

Heteronuclear molecule

10.1080/00958972.2017.1374380

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Citations (3)

AgBF₄-catalyzed deoxygenative C2-amination of quinoline N-oxides with isothiocyanates

Organic Chemistry Frontiers (2018)

Long‐Yong Xie Sha Peng Li-Lin Jiang Xia Peng Wen Xia

A general, effective and convenient protocol for the direct synthesis of various 2-aminoquinolines (39 examples) through AgBF₄-catalyzed amination of quinoline N-oxides with isothiocyanates under base-, oxidant-free and mild conditions was developed.

Quinoline

10.1039/c8qo01128a

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Citations (92)

Metal- and Solvent-Free Ultrasonic Multicomponent Synthesis of (Z)-β-Iodo Vinylthiocyanates

ACS Sustainable Chemistry & Engineering (2018)

Linghui Lu Si‐Jia Zhou Meng Sun Jialiang Chen Wen Xia

An eco-friendly and practical method for the ultrasonic multicomponent synthesis of diverse (Z)-β-iodo vinylthiocyanates from cheap and commercially available alkynes, molecular iodine, and KSCN through an intermolecular H-bonding assistance strategy was developed.

Environmentally Friendly

10.1021/acssuschemeng.8b05344

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Citations (90)

Electrocatalysis Decarboxylative Annulation of Benzol[e][1,2,3]-oxathiazine-2,2-dioxides with N-Arylglycines

Chinese Journal of Organic Chemistry (2024)

Linheng He Wen Xia Yuxiang Zhou Xianyong Yu

Annulation

10.6023/cjoc202310027

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Polyhalogenation-Facilitated Spirolactonization at the meta-Position of Phenols

The Journal of Organic Chemistry (2023)

Jiaqi Cao Youcai Ma Liangzhen Hu Wen Xia Xiaohui Zhang

A novel dearomative spirolactonization/polyhalogenation of phenols that employs hypervalent iodine PhICl2 (iodobenzene dichloride) as both an oxidant and chlorine source with an indispensable base, or only using NBS (N-bromosuccinimide) without any additives, is presented. Halide participations are a vital factor in the cascade reaction of 3′-hydroxy-[1,1′-biphenyl]-2-carboxylic acids with good selectivities and reactivities and induced the rapid constructions of multiple C–halogen bonds and directional C═O bonds in a one-step operation under mild conditions. In gaining a good understanding of the mechanism, the increase in number of bromine atoms was inferred rationally from the spirolactonization process, assisted by DFT calculations and high-resolution mass spectrometry. Mechanistic experiments suggest that the formation of a stable carbocation intermediate plays a great role in the migration of oxygen to spirolactonization.

Hypervalent molecule

Iodobenzene

Carbocation

10.1021/acs.joc.2c02527

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Citations (4)

The beeswax-based fish oil oleogels adjusting the stabilization mechanism and lipid digestion of bi-layer emulsions: Spatial conformation and Molecular interaction

Food Hydrocolloids (2024)

Yanmo Pan Shucheng Liu Zongyuan Han Hui-Shan Li Haoyan Lai

Beeswax

Digestion

Lipid digestion

10.1016/j.foodhyd.2024.110561

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Citations (1)

Electro-redox strategy for synthesis of dehydroaltenusin analogs through alkoxy-oxylactonizative phenol dearomatization

Tetrahedron (2022)

Wen Xia Xiaohui Zhang Chenglong Ma Jiaqi Cao Liangzhen Hu

Functional group

10.1016/j.tet.2022.133238

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Citations (2)

Crystal structure and catalytic properties of a vanadium complex cis-[VO₂(Him-py)(im-py)]₂·3H₂O

Journal of Coordination Chemistry (2019)

Meng Sun Shaowei Zhang Jie Zhang Wen Xia Jialiang Chen

The coordination behavior of Him-py (2-(1H-imidazol-2-yl)pyridine) toward vanadium has been explored. The six-coordinate complex, cis-[VO2(Him-py)(im-py)]2·3H2O (1), was synthesized by the coordination reaction of NH4VO3 and Him-py in the aqueous methanol solution, which was characterized by single-crystal X-ray technology. It belongs to the monoclinic space group P21/n with a = 8.0756(6), b = 19.3531(15), c = 11.4433(8), β = 106.905(2), V = 1711.2(2), and Z = 2. The crystal structure shows that the six-coordinate vanadium is bonded to two cis-oxido ligands and two bidentate ligands, Him-py and im-py. Interestingly, when crystals of 1 were immersed in H2O2, a peroxovanadium compound, (H2im-py)[OV(O2)2(Him-py)] (2), was obtained, which crystallizes in the orthorhombic space group Fdd2 with a = 22.600(2), b = 22.7259(13), c = 18.0146(11), V = 9252.4(12), and Z = 16, and consists of a seven-coordinate peroxovanadate(V) ion, one Him-py and one H2im-py ligand. Moreover, we also studied the catalytic activity of 1 in the oxidative bromination of phenol/aniline-like compounds towards mimicking bromoperoxidase reactivity.

Monoclinic crystal system

Orthorhombic crystal system

Reactivity

10.1080/00958972.2019.1618848

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Citations (7)

Crystal structure, NMR and catalytic properties of a bis-peroxovanadium [NH₄][VO(O₂)₂(mpa)]·H₂O

Journal of Coordination Chemistry (2019)

Ping Chen Shaowei Zhang Jie Zhang Wen Xia Xianyong Yu

By reacting NH4VO3 and mpa (mpa = 4-methoxypicolinamide) in the presence of H2O2, a bis-peroxovanadium [NH4][VO(O2)2(mpa)]·H2O (1) was obtained and characterized by X-ray single-crystal diffraction. Structural analyses demonstrate that 1 belongs to the monoclinic space group P21/c and consists of a bis-peroxovanadium [VO(O2)2(mpa)]−, one NH4+ counterion and one free lattice water. Adjacent [VO(O2)2(mpa)]− anions construct a 3D supramolecular framework through intra- and intermolecular hydrogen bonding interactions. The compositions of 1 in solution are investigated by using multinuclear (1H, 13C, and 51V) magnetic resonance, COSY, HSQC, HMBC, and variable temperature NMR in a 0.15 mol L−1 NaCl/D2O solution that mimics the physiological conditions. Comparing the results of single-crystal X-ray and NMR experiments, the VV ion in the undissociated [VO(O2)2(mpa)]− in solution displays a similar seven-coordinate distorted pentagonal bipyramidal geometry with the solid-state crystal. The catalytic activity of the 1 in the oxidative bromination for phenol/aniline-like compounds to mimic bromoperoxidases reactivity was also studied.

Monoclinic crystal system

Reactivity

10.1080/00958972.2018.1564913

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Citations (3)