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S-(1,3-Dioxoisoindolin-2-yl)O,O-diethyl phosphorothioate (SDDP): A practical electrophilic reagent for the phosphorothiolation of electron-rich compounds

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Chinese Chemical Letters 2024年第5期35卷 151-154页

作者： Ze-Yuan Ma Mei Xiao Cheng-Kun Li Adedamola Shoberu jian-ping zou Key Laboratory of Organic Synthesis of jiangsu Province College of Chemistry and Chemical EngineeringSoochow UniversitySuzhou 215123China

An efficient synthesis of the electrophilic reagent,S-(1,3-dioxoisoindolin-2-yl)O,O-diethyl phosphorothioate(SDDP)is ***,the synthetic applications of SDDP wherein the transfer of the SP(O)(OEt)_(2) moiety occurs were *** this manner,SDDP underwent facile SP(O)(OEt)_(2) transfer with electron-rich substrates such as ketones,indoles,and thiols to formα-phosphorothiolated ketones,3-phosphorothiolated indoles and S-phosphorothiolated thioethers,respectively.

关键词： Electrophilic reagent Phosphorothiolation Electrophilic substitution

Ubiquitin-specific protease 15 contributes to gastric cancer progression by regulating the Wnt/β-catenin signaling pathway

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World Journal of Gastroenterology 2021年第26期27卷 4221-4235页

作者： Min Zhong Ling Zhou Zhi Fang Yang-Yang Yao jian-ping zou jian-ping Xiong Xiao-Jun Xiang Jun Deng Department of jiangxi Key Laboratory for Individualized Cancer Therapy The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Cancer Center The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND Ubiquitin-specific protease 15(USP15)is an important member of the ubiquitinspecific protease family,the largest deubiquitinase subfamily,whose expression is dysregulated in many types of ***,the biological function and the underlying mechanisms of USP15 in gastric cancer(GC)progression have not been *** To explore the biological role and underlying mechanisms of USP15 in GC *** Bioinformatics databases and western blot analysis were utilized to determine the expression of USP15 in *** was performed to evaluate the correlation between USP15 expression and clinicopathological characteristics of patients with GC.A loss-and gain-of-function experiment was used to investigate the biological effects of USP15 on GC *** sequencing,immunofluorescence,and western blotting were performed to explore the potential mechanism by which USP15 exerts its oncogenic *** USP15 was up-regulated in GC tissue and cell *** expression level of USP15 was positively correlated with clinical characteristics(tumor size,depth of invasion,lymph node involvement,tumor-node-metastasis stage,perineural invasion,and vascular invasion),and was related to poor ***15 knockdown significantly inhibited cell proliferation,invasion and epithelialmesenchymal transition(EMT)of GC in vitro,while overexpression of USP15 promoted these *** of USP15 inhibited tumor growth in ***,RNA sequencing analysis showed that USP15 regulated the Wnt signaling pathway in *** blotting confirmed that USP15 silencing led to significant down-regulation ofβ-catenin and Wnt/β-catenin downstream genes(c-myc and cyclin D1),while overexpression of USP15 yielded an opposite result and USP15 mutation had no *** indicated that USP15 promoted nuclear translocation ofβ-catenin,suggesting activation of the Wnt/β-catenin signaling pathway,which may be the critical mech

关键词： Ubiquitin-specific protease 15 Gastric cancer Wnt/β-catenin Cell proliferation Cell invasion Epithelial-mesenchymal transition

Functional groups to modify g-C3N4 for improved photocatalytic activity of hydrogen evolution from water splitting

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Chinese Chemical Letters 2020年第6期31卷 1648-1653页

作者： Fan Yu Laichun Wang Qiuju Xing Dengke Wang Xunheng jiang Guangchao Li Anmin Zheng Fanrong Ai jian-ping zou Key Laboratory of jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics National Center for Magnetic Resonance in WuhanWuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan 430071China School of Mechanical&Electronic Engineering Nanchang UniversityNanchang 330031 China

Rational modification by functional groups was regarded as one of efficient methods to improve the photocatalytic performance of graphitic carbon nitride(g-C3 N4).Herein,g-C3 N4 with yellow(Y-GCN)and brown(C-GCN)were prepared by using the fresh urea and the urea kept for five years,respectively,for the first *** results show that the H2 production rate of the C-GCN is 39.06μmol/h,which is about 5 times of the ***,in terms of apparent quantum efficiency(AQ.E)at 420 nm,C-GCN has a value of 6.3%and nearly 7.3 times higher than that of Y-GCN(0.86%).The results of XRD,IR,DRS,and NMR show,different from Y-GCN,a new kind of functional group of—N=CH—was firstly in-situ introduced into the C-GCN,resulting in good visible light absorption,and then markedly improving the photocatalytic *** calculation also confirms the effect of the—N=CH—group band structure of ***,XPS results demonstrate that the existence of—N=CH—groups in C-GCN results in tight interaction between C-GCN and Pt nanoparticles,and then improves the charge separation and photocatalytic *** present work demonstrates a good example of"defect engineering"to modify the intrinsic molecular structure of g-C3N4 and provides a new avenue to enhance the photocatalytic activity of g-C3N4 via facile and environmental-friendly method.

关键词： Functional groups Graphitic carbon nitride Hydrogen evolution Photocatalysis Synthesis

Constructing built-in electric field via CuO/NiO heterojunction for electrocatalytic reduction of nitrate at low concentrations to ammonia

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Chinese Chemical Letters 2024年第12期35卷 321-326页

作者： Ying Chen Xingyuan Xia Lei Tian Mengying Yin Ling-Ling Zheng Qian Fu Daishe Wu jian-ping zou Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of EducationSchool of Resources&EnvironmentNanchang UniversityNanchang 330031China National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization School of Environmental and Chemical EngineeringNanchang Hangkong UniversityNanchang 330063China School of Materials and Chemical Engineering Pingxiang UniversityPingxiang 337000China

Electrocatalytic reduction of nitrate(NO_(3)^(-))at low concentrations to ammonia(NH_(4)^(+))still faces chal lenges of low NO_(3)^(-)conversion and NH_(4)^(+)selectivity due to the sluggish mass transfer and insufficien atomic hydrogen(H^(*))***,we propose CuO/NiO heterojunction with the assistance of a built-in electric field to enhance mass transfer and H^(*)*** built-in electric field in Cu O/Ni O is success fully formed as demonstrated by X-ray photoelectron spectroscopy and ultraviolet photoemission spec *** results reveal that Cu O/Ni O achieves high NO_(3)^(-)reduction activity(100%)and NH_(4)^(+)selec tivity(100%)under low NO_(3)^(-)concentration conditions(100 mg/L NO_(3)^(-),ca.22.6 mg/L NO_(3)^(-)-N),which i superior to that of many recently reported *** functional theory calculations furthe clarify that the built-in electric field triggers the enhanced adsorption of reactants on CuO/NiO hetero junction interface and strong d-p orbital hybridization between reactants and CuO/***,the free energy diagram of hydrogen evolution reaction of CuO/NiO confirms the realization of enhanced H^(*)pro ***,coupling experiments and consecutive cycle tests demonstrate the potential of CuO/NiO in practical *** work may open up a new path and guide the development of efficien electrocatalysts for electrocatalytic reduction of NO_(3)^(-)at low concentrations to NH_(4)^(+).

关键词： Electrocatalytic reduction of NO_(3)-NH_(4)^(+)selectivity Built-in electric field H^(*) Low concentrations

Study on the Reaction of α-Thiobenzoylthioformylmorpholine

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Chinese Chemical Letters 1997年第11期8卷 937-938页

作者： Run Sheng ZENG jian ping zou Ai Feng WANG Zhong ELU(Department of Chemistry, Suzhou University, Suzhou 215006) Suzhou Univ Dept Chem Suzhou 215006 Peoples R China

The reactions of α - thiobenzoylthioformylmorpholine and compounds bearing amino group, such as diamine, aminoguanidine, semicarbazide and phenylacetylene have been explored.

关键词： EtOH Thiobenzoylthioformylmorpholine Study on the Reaction of

Oxygen-vacancy-rich phenanthroline/TiO_(2) nanocomposites: An integrated adsorption, detection and photocatalytic material for complex pollutants remediation

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Chinese Chemical Letters 2022年第2期33卷 907-911页

作者： pinghua Chen Huitao Zheng Hualin jiang Jun Liu Xinman Tu Weibo Zhang Bailey Phillips Lei Fang jian-ping zou Key Laboratory of jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China Department of Applied Chemistry College of Environmental and Chemical EngineeringNanchang Hangkong UniversityNanchang 330063China Department of Chemistry Texas A&M UniversityCollege StationTexas 77843United States School of Resources Environmental and Chemical EngineeringNanchang UniversityNanchang 330031China

To address the challenge of treating complex pollutants containing heavy metals and organic compounds,a phenanthroline/TiO_(2)nanocomposite with rich oxygen vacancy defects was synthesized to integrate the functions of pollutant detection, adsorption, and photocatalytic degradation. The results showed that the nanocomposite could adsorb Cr^(3+)and the process could be transduced into a colorimetric signal for qualitative and quantitative detection. The adsorbed heavy metal also exhibited a synergistically enhanced photocatalytic degradation of a model organic pollutant under visible light. The simultaneous adsorption, detection, and photocatalysis could reduce the multifarious operations and high cost of traditional environmental remediation methods, indicating a strong application potential for the nanocomposite.

关键词： Heavy metals Organic contaminants Adsorption Detection Photocatalytic degradation Oxygen vacancy

STUDY ON THE REACTION OF ACYLISOCYANATE AND ARYL UREA

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Chinese Chemical Letters 1992年第7期3卷 493-494页

作者： jian ping zou Zhong E LU Ke Qian CHEN Department of Chemistry Suzhou UniversitySuzhou 215006

Acyl isocyanate(Ⅰ) was synthesized by the reaction of acyl chloride with lead cyanate in dichloromethane, using pyridine as a catalyst. Then, adding aryl urea(Ⅱ) to acyl isocyanate, 1-acyl-5-aryl-biuret (Ⅲ) can be ... 详细信息

关键词： Chen Cl

Advanced municipal wastewater treatment and simultaneous energy/resource recovery via photo(electro)catalysis

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Chinese Chemical Letters 2023年第5期34卷 72-87页

作者： Dengke Wang Siqi Chen Shiqin Lai Weili Dai Lixia Yang Lanqing Deng Mengjuan Suo Xuyang Wang jian-ping zou Sheng-Lian Luo Key Laboratory of jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China

Wastewater management and energy/resource recycling have been extensively investigated via photo(electro)*** both operation processes are driven effectively by the same interfacial charge,each system is practiced separately since they require very different reaction *** this review,we showcase the recent advancements in photo(electro)catalytic process that enables the wastewater treatment and simultaneous energy/resource recovery(WT-ERR).Various literatures based on photo(electro)catalysis for wastewater treatment coupled with CO_(2)conversion,H_(2)production and heavy metal recovery are ***,the fundamentals of photo(electro)catalysis and the influencing factors in such synergistic process are also *** essential feature of the catalysis lies in effectively utilizing hole oxidation for pollutant degradation and electron reduction for energy/resource *** in its infancy,the reviewed technology provides new avenue for developing next-generation wastewater treatment ***,we expect that this review can stimulate intensive researches to rationally design photo(electro)catalytic systems for environmental remediation accompanied with energy and resource recovery.

关键词： Wastewater treatment CO_(2)reduction Hydrogen evolution Metal recovery Photo(electro)catalysis

Covalent coupling promoting charge transport of CdSeTe/UiO-66 for boosting photocatalytic CO_(2)reduction

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Chinese Chemical Letters 2023年第6期34卷 191-194页

作者： Lisha Chen Qianqian Tang Shihao Wu Longshuai Zhang Lifang Feng Yuan Wang Yiling Xie Yan Li jian-ping zou Sheng-Lian Luo Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education School of Resources&EnvironmentNanchang UniversityNanchang 330031China Key Laboratory of jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Chemistry&Molecular Engineering East China University of Science and TechnologyShanghai 200237China

Quantum dots(QDs)based heterojunction is a candidate for the photocatalytic CO_(2)reduction,owing to the large extinction coefficient and easy modification of band ***,the van der Waals interaction causes the large charge resistance and strong recombination centers between QDs and host materials,which makes the poor photocatalytic ***,a covalent bonded CdSeTeQDs and NH_(2)-UiO-66 heterojunction(NUC-x)is constructed through an acylamino(-CONH-).The results indicate that the acylamino between NH_(2)-UiO-66 and Cd Se Te QDs can serve as the transfer channels for the photogenerated charges and stabilize the *** optimized NUC-1200 achieved a CO generation rate of 228.68μmol/g,which is 13 and 4 times higher than that of NH_(2)-UiO-66 and Cd Se Te QDs,*** work provides a new avenue for efficient and stable photocatalysis of QDs.

关键词： Covalent coupling CO_(2)reduction MOFs Quantum dots Photocatalytic