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Nd@C3N4-photoredox/chlorine dual catalyzed synthesis and evaluation of antitumor activities of 4-alkylated sulfonyl ketimines

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Chinese Chemical Letters 2025年第2期36卷 412-416页

作者： hong-tao ji Yu-Han Lu Yan-Ting Liu Yu-Lin Huang jiang-Feng Tian Feng Liu Yan-Yan Zeng Hai-Yan Yang Yong-hong Zhang Wei-Min He Department of Ophthalmology The Affiliated Nanhua Hospital Hengyang Medical School University of South China School of Chemistry and Chemical Engineering University of South China Department of Lung Cancer and Gastroenterology Hunan Cancer Hospital The Affiliated Cancer Hospital of Xiangya School of Medicine Central South University

The first example of Nd@C3N4-photoredox/chlorine dual catalyzed alkylation with unactivated alkanes as the alkyl sources has been developed,which allows for the synthesis of various 4-alkylated cyclic sulfonyl *** this process,chlorine functions as both a redox and hydrogen atom transfer *** synergism of the reversible Nd2+/Nd3+and Clˉ/Cl˙redox pairs significantly enhances overall photocatalytic *** in vitro anticancer activity of 4-alkylated products was evaluated by using the CCK8assay against both human choroidal melanoma （MUM-2B） and lung cancer （A549） *** 3da showed approximately triple the potency of 5-fluorouracil.

关键词： Chlorine Dual catalysis Hydrogen atom transfer Redox catalyst Semiconductor

Approach of technical decision-making by element flow analysis and Monte-Carlo simulation of municipal solid waste stream

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Journal of Environmental Sciences 2007年第5期19卷 633-640页

作者： TIAN Bao-guo SI ji-tao ZHAO Yan WANG hong-tao HAO ji-ming Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China

This paper deals with the procedure and methodology which can be used to select the optimal treatment and disposal technology of municipal solid waste （MSW）, and to provide practical and effective technical support to policy-making, on the basis of study on solid waste management status and development trend in China and abroad. Focusing on various treatment and disposal technologies and processes of MSW, this study established a Monte-Carlo mathematical model of cost minimization for MSW handling subjected to environmental constraints. A new method of element stream （such as C, H, O, N, S） analysis in combination with economic stream analysis of MSW was developed. By following the streams of different treatment processes consisting of various techniques from generation, separation, transfer, transport, treatment, recycling and disposal of the wastes, the element constitution as well as its economic distribution in terms of possibility functions was identified. Every technique step was evaluated economically. The Mont-Carlo method was then conducted for model calibration. Sensitivity analysis was also carried out to identify the most sensitive factors. Model calibration indicated that landfill with power generation of landfill gas was economically the optimal technology at the present stage under the condition of more than 58% of C, H, O, N, S going to landfill. Whether or not to generate electricity was the most sensitive factor. If landfilling cost increases, MSW separation treatment was recommended by screening first followed with incinerating partially and composting partially with residue landfilling. The possibility of incineration model selection as the optimal technology was affected by the city scale. For big cities and metropolitans with large MSW generation, possibility for constructing large-scale incineration facilities increases, whereas, for middle and small cities, the effectiveness of incinerating waste decreases.

关键词： municipal solid waste element stream analysis Monte-Carlo method technical decision-making

Chromium-catalyzed asymmetric synthesis of 1,3-diols

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Chinese Chemical Letters 2017年第6期28卷 1182-1184页

作者： hong-tao ji Qing-Shan Tian jian-Nan Xiang Guo-Zhu Zhang College of Chemistry and Chemical Engineering Hunan University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of Sciences

An efficient,chromium-catalyzed highly enantioselective preparation of protected 1,3-diols has been *** the presence of a chiral chromium catalyst using the carbazole-based bisoxazoline as the chiral ligand,a variety of optically pure 1,3-diols were synthesized in 34%-87%yields with up to 98%*** benzyl as well as silyl ethers were suitable substitutions for the hydroxyl ***,aromatic,aliphatic and α,β-unsaturated aldehydes are well tolerated under the mild reaction conditions.

关键词： 1 3-Diol Asymmetric Chromium-catalyzed Allylation Bisoxazoline

TBAI/H_(2)O-cooperative electrocatalytic decarboxylation coupling-annulation of quinoxalin-2(1H)-ones with N-arylglycines

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Chinese Chemical Letters 2023年第7期34卷 112-116页

作者： Yu-Han Lu Zhuo-tao Zhang hong-Yu Wu Min-Hang Zhou Hai-Yang Song hong-tao ji Jun jiang jin-Yang Chen Wei-Min He Hengyang Medical School University of South ChinaHengyang 421001China School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China

The first example of TBAI/H_(2)O cooperative electrocatalytic coupling-annulation of quinoxalin-2(1H)-ones with N-arylglycines was developed. A broad range of tetrahydroimidazo[1,5-a]quinoxalin-4(5H)-ones were obtained in good to excellent yields with exclusive chemoselectivities and excellent regioselectivities. The H-hydrogen bond served as a key factor for the electrocatalytic production of aminomethyl radical at lower oxidative potential.

关键词： Green chemistry Electrochemistry Aminomethyl radical Annulation reaction

Sono-photocatalytic amination of quinoxalin-2(1H)-ones with aliphatic amines

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Chinese Chemical Letters 2024年第10期35卷 269-272页

作者： Wen-tao Ouyang Jun jiang Yan-Fang jiang Ting Li Yuan-Yuan Liu hong-tao ji Li-Juan Ou Wei-Min He School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China School of Materials Science and Engineering Hunan Institute of TechnologyHengyang 421002China National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass Nanjing Forestry UniversityNanjing 210037China

The first example of sono-photocatalytic bond formation was *** both visible light and ultrasound wave as the energy,various 3-aminoquinoxalin-2(1H)-ones were efficiently obtained with good functional group tolerance in the absence of any additive or external *** with the conventional photocatalysis,sono-photocatalysis not only dramatically improved the reaction rates and yields,but also reduced energy consumption.

关键词： Sono-photocatalysis External photocatalyst-free Quinoxalin-2(1H)-ones Amination Aliphatic amines

Electrochemical radical annulation of 2-alkynyl biaryls with diselenides under catalyst-and chemical oxidant-free conditions

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Chinese Chemical Letters 2023年第12期34卷 146-149页

作者： Jun jiang Ke-Li Wang Xiao Li Chao Wu hong-tao ji Xiang Chen Wei-Min He Postdoctoral Mobile Station of Basic Medical Sciences Hengyang Medical SchoolUniversity of South ChinaHengyang 421001China

A facile and efficient electrochemical method for sustainable constructing both selanyl phenanthrenes and selanyl polycyclic heteroaromatics(32 examples,71%-97%yields)through the radical annulation of 2-alkynyl biaryls and 2-heteroaryl-substituted alkynyl benzenes with diselenides at ambient temperature under additive-,chemical oxidant-,catalyst-free and mild conditions was established.

关键词： Green chemistry Radical annulation Diselenides Electrochemical

Inguinal and subinguinal micro-varicocelectomy, the optimal surgical management of varicocele： a meta-analysis

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Asian Journal of Andrology 2015年第1期17卷 74-80,I0008页

作者： Jun Wang Shu-jie Xia Zhi-hong Liu Le tao ji-Fu Ge Chen-Min Xu jian-Xin Qiu Department of Urology Shanghai First People's Hospital Medical College of Shanghai Jiao Tong University Shanghai China.

Conventional meta-analyses have shown inconsistent results for the efficacy of various treatments of varicoceles. Therefore, we performed a multiple-treatment meta-analysis to assess the effectiveness and safety of 10 methods of varicocelectomy and embolization/sclerotherapy. We systematically reviewed 35 randomized controlled trials and observational studies, from 1966 to August 5, 2013, which compared any of the following treatments for varococeles： laparoscopic, retroperitoneal, open inguinal and subinguinal varicocelectomy, microsurgical subinguinal and inguinal varicocelectomy, percutaneous venous embolization, Tauber antegrade sclerotherapy, retrograde sclerotherapy and expectant therapy （no treatment）. Inguinal and subinguinal microsurgery, open inguinal, laparoscopic varicocelectomy showed a significant advantage over expectant therapy in terms of pregnancy rates （odds ratio （OR）： 3.48, 2.68, 2.92 and 2.90, respectively）. Compared with retroperitoneal open surgery, inguinal microsurgery showed an improvement of sperm density （mean difference （MD）： 10.60, 95% confidence interval （Cl）： 1.92-19.60） and sperm motility （MD： 9.09, 95% Cl. 4.88-13.30）. Subinguinal and inguinal microsurgery outperformed retroperitoneal open surgery in terms of recurrence （OR： 0.05, 0.06 respectively）. Tauber antegrade sclerotherapy and subinguinal microsurgery were associated with the lowest risk of hydrocele formation. The odds of overall complication, compared with retroperitoneal open varicocelectomy, were lowest for inguinal microsurgery （OR = 0.07, 95% Ch 0.02-0.19）, followed by subinguinal microsurgery （OR = 0.09, 95% CI. 0.02-0.19）. Inguinal and subinguinal micro-varicocelectomy had the highest pregnancy rates, significant increases in sperm parameters, with low odds of complication. These results warrant additional properly conducted randomized controlled clinical studies with larger sample sizes.

关键词： meta-analysis varicocele varicocelectomy

Sustainable and practical semi-heterogeneous photosynthesis of 5-amino-1,2,4-thiadiazoles over WS_(2)/TEMPO

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Chinese Chemical Letters 2024年第8期35卷 250-253页

作者： jia-Cheng Hou hong-tao ji Yu-Han Lu jia-Sheng Wang Yao-Dan Xu Yan-Yan Zeng Wei-Min He School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China

An eco-friendly and practical method for the clean preparation of 5-amino-1,2,4-thiadiazoles was *** WS_(2)as the semiconductor photocatalyst,both TEMPO and O_(2)(in air)as the redox catalysts,a variety of thiadiazoles were semi-heterogeneously formed in high to quantitative yields and could be easily collected by CPME extraction and ***,the catalytic system can be reusable for at least 5 reaction runs.

关键词： Green chemistry Thiadiazoles Heterogeneous catalyst Redox catalyst Extraction

External photocatalyst-free C-H alkylation of N-sulfonyl ketimines with alkanes under visible light

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Chinese Chemical Letters 2023年第9期34卷 134-137页

作者： Hai-Yang Song Fang Xiao Jun jiang Chao Wu hong-tao ji Yu-Han Lu Ke-Li Wang Wei-Min He School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China Xiangya School of Public Health Central South UniversityChangsha 410078China

A simple,practical and eco-friendly visible light-induced alkylation of N-sulfonyl ketamine under metal-,additive-,external photocatalyst-free conditions was *** photocatalytic method utilized low cost and abundant alkanes as the atom economy alkyl sources with H2O2as the environmentally beneficial oxidant,allowing for the efficient construction of diverse valuable 4-alkylated sulfonyl *** N-sulfonyl ketamine played a dual role of reactant and photocatalyst,thus simplifying the reaction system.

关键词： Green chemistry External photocatalyst-free N-Sulfonyl ketimines Alkanes Alkylation