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External surface modification of as-made ZSM-5 and their catalytic performance in the methanol to propylene reaction

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Chinese Journal of Catalysis 2018年第8期39卷 1418-1426页

作者： Xuebin Zhao Yang Hong Linying Wang Dong Fan Nana Yan Xiaona Liu Peng Tian Xinwen Guo Zhongmin Liu State Key Laboratory of fine chemicals PSU-DUT Joint Center for Energy ResearchSchool of Chemical EngineeringDalian University of TechnologyDalian116024LiaoningChina National Engineering Laboratory for Methanol to Olefins State Energy Low Carbon Catalysis and Engineering R＆D CenterDalian National Laboratory for Clean EnergyCollaborative Innovation Center of Chemistry for Energy Materials（iChEM）Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023LiaoningChina University of Chinese Academy of Sciences Beijng100049China

Post-synthetic treatment of high-silica as-made ZSM-5 with organic template in the micropores was explored to reduce/remove the external surface acid density of ZSM-5. It is found that Na_2H_2 EDTA treatment can selectively remove the surface Al atoms, but generates new acid sites（likely silanol nests） on the external surface. H_3PO_4 treatment is unable to remove surface Al atoms, while small amount of P is left on the external surface, which effectively decreases the acid density. The catalytic performance of the resultant materials is evaluated in the methanol conversion reaction. H_3PO_4 treatment can effectively improve both the catalytic lifetime and the stability of propene *** occurs due to a combination of the increased tolerance to the external coke deposition and the depressed coking rate（reduced side reactions）. Na_2H_2 EDTA treatment only prolongs the catalytic lifetime, resulting from the improved tolerance to the external coke deposition. Under the optimized H_3PO_4 treatment condition, the resultant ZSM-5 gives a catalytic lifetime of about 1.5 times longer than the precursor. Moreover, the propene selectivity is improved, showing a slight increasing trend until the deactivation.

关键词： Methanol topropene ZSM‐5 zeolite Modification Phosphoricacid Ethylenediamine tetraaceticacid

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Design and Synthesis of Highly Dispersed Faujasite Nanocrystals with inorganic materials

Design and Synthesis of Highly Dispersed Faujasite Nanocryst...

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第19届全国分子筛学术大会

作者： He Han Xinwen Guo Chunshan Song Michael Tsapatsis State Key Laboratory of fine chemicals PSU-DUT Joint Centre for Energy ResearchSchool of Chemical EngineeringDalian University of Technology Department of Chemical Engineering and Materials Science University of Minnesota Department of Energy and Mineral Engineering EMS Energy InstitutePSU-DUT Joint Centre for Energy ResearchPennsylvania State University

＜正＞Highly dispersed faujasite（FAU）nanocrystals have great potential as catalysts or adsorbents to more efficiently petrochemical synthesis or separationHere,we present a synthetic strategy of FAU nanocrystals by first mixing the sol at high water content compositions that favor nanocrystal formation and then lowering the water to

关键词： synthesis zeolite FAU nanocrystals freeze drying

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Chemotherapy drugs derived nanoparticles encapsulating mRNA encoding tumor suppressor proteins to treat triple-negative breast cancer

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Nano Research 2019年第4期12卷 855-861页

作者： Chengxiang Zhang Xinfu Zhang Weiyu Zhao Chunxi Zeng Wenqing Li Bin Li Xiao Luo Junan Li Justin Jiang Binbin Deng David W. McComb Yizhou Dong Division of Pharmaceutics & Pharmaceutical Chemistry College of Pharmacy The Ohio State University Columbus OH 43210 USA Present address: State Key Laboratory of fine chemicals Dalian University of Technology Dalian 116024 China College of Pharmacy The Ohio State University Columbus OH 43210 USA Center for Electron Microscopy and Analysis The Ohio State University Columbus OH 43212 USA Department of Materials Science and Engineering The Ohio State University Columbus OH 43210 USA Department of Biomedical Engineering The Ohio State University Columbus OH 43210 USA The Center for Clinical and Translational Science The Ohio State University Columbus OH 43210 USA The Comprehensive Cancer Center The Ohio State University Columbus OH 43210 USA Dorothy M. Davis Heart & Lung Research institute The Ohio State University Columbus OH 43210 USA Department of Radiation Oncology The Ohio State University Columbus OH 43210 USA

Triple-negative breast cancer(TNBC)is one type of the most aggressive breast can cers with poor prog no *** is of great urgency to develop new therapeutics for treati ng *** on curre nt treatment guideline and genetic informatio n of TNBC,a combi nation al therapy platform in tegrati ng chemotherapy drugs and mRNA encoding tumor suppressor proteins may become an efficacious *** this study,we developed paclitaxel amino lipid(PAL)derived nanoparticles(NPs)to incorporate both chemotherapy drugs and P53 *** PAL P53 mRNA NPs showed superior properties compared to Abraxane? and Lipusu? used in the clinic including high paclitaxel loading capacity(24 wt.%,calculated by paclitaxel in PAL),PAL encapsulation efficiency(94.7%±6.8%)and mRNA encapsulation efficiency(88.7%±0.7%).Meanwhile,these NPs displayed synergetic cytotoxicity of paclitaxel and P53 mRNA in cultured TNBC *** importantly,we demonstrated in vivo anti-tumor efficacy of PAL P53 mRNA NPs in an orthotopic TNBC mouse ***,these chemotherapy drugs derived mRNA NPs provide a new platform to integrate chemotherapy and personalized medicine using tumor genetic information,and therefore represent a promising approach for TNBC treatment.

关键词： clitaxel amino lipid derived nano particles mRNA therapeutics combi nation therapy triple- negative breast cancer

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Conformation Governed Reactivity of Fused Thia-Sapphyrin Dimers Bearing Multiply Fused Heteroaromatic Rings

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CCS Chemistry 2023年第6期5卷 1332-1342页

作者： Qizhao Li Masatoshi Ishida Chengjie Li Glib Baryshnikov Feng Sha Bin Zhu Xinyan Wu HansÅgren Hiroyuki Furuta Yongshu Xie Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237 Department of Chemistry Graduate School of ScienceTokyo Metropolitan UniversityTokyo 192-0397 Department of Science and Technology Laboratory of Organic ElectronicsLinköping UniversityNorrköping SE-60174 Department of Physics and Astronomy Uppsala UniversityUppsala SE-75120 Department of Applied Chemistry Graduate School of EngineeringKyushu UniversityFukuoka 819-0395 Research Organization of Science and Technology Ritsumeikan UniversityKusatsu 525-8577

Suitable conformations and proper alignment of complex natural macrocycles are essential for achieving their unique ***,such artificial macrocycle prototypes are still limited due to synthetic *** this respect,directly linked porphyrin analog dimers display tunable conformations and intriguing properties,and thus,they may be employed as a class of promising ***,we report that one-pot oxidative dimerization of thiahydrosapphyrin 1 yields dimers,2anti and 2syn,comprising a transoid-oriented plate-like bipyrrolo[1,2-a]*** thiophene-containing tetrapyrrole arching subunits in 2 lie at the opposite(anti)and same(syn)sides of the plate,***,multiply fused cisoid-orientated dimer 3 was also obtained;a polycyclic pyrrolo-bridged bipyrroloindole derivative tethered with fullyπ-conjugated bridges was ***,the anti-dimer 2anti underwent subsequent oxidative fusion to furnish a further-fused[6.***.5.7.5.***.5.6]-octacyclic compound *** contrast,the syn-orientated 2syn could not be further fused due to the long distance between the potential reaction *** study provides a unique approach to the fused dimeric porphyrin analogs for potential near-infrared optical materials by a simple oxidation *** also reveals the importance of conformation-modulated reactivity for constructing complex porphyrin arrays.

关键词： porphyrins porphyrinoids sapphyrins π-conjugated systems porphyrin oligomers nearinfrared dyes macrocycles

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New sustainable polymers with on-demand depolymerization property

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Science China Chemistry 2024年第9期67卷 2803-2841页

作者： Yangyang Sun Zesheng An Yanshan Gao Rongrong Hu Ye Liu Hua Lu Xiao-Bing Lu Xuan Pang Anjun Qin Yong Shen Youhua Tao Yu-Zhong Wang Junpeng Wang Gang Wu Guang-Peng Wu Tie-Qi Xu Xing-Hong Zhang Yuetao Zhang Zhenbiao Zhang Jian-Bo Zhu Miao Hong Zhibo Li State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China State Key Laboratory Base of Eco-Chemical Engineering College of Chemical EngineeringQingdao University of Science and TechnologyQingdao266042China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth China University of TechnologyGuangzhou 510640China State Key Laboratory of fine chemicals Frontiers Science Center for Smart MaterialsDalian University of TechnologyDalian 116024China Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE) National Engineering Laboratory of Eco-Friendly Polymeric Materials(Sichuan)College of ChemistryState Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610064China School of Polymer Science and Polymer Engineering the University of AkronAkronOH 44325USA MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationSuzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

To combat the crisis of today's synthetic polymers arising from unsustainable production and disposal,it is essential for the synthetic polymer community to reshape the current polymer industry with sustainable *** an emerging class of sustainable polymers,the development of chemically depolymerizable polymers(CDPs),which can undergo closed-loop depolymerization/repolymerization cycles to reproduce virgin polymers without the loss of properties from recovered monomers,offers an ideal solution to preserve finite natural resources,provides a feasible solution to the end-of-life issue of polymer waste,and thereby establishes a circular materials ***,two grand key challenges have been encountered in the establishment of practically useful CDPs:how to balance polymerization and depolymerization ability and how to unify conflicted depolymerizability and physical ***,this critical review article presents our vision for summarizing feasible strategies to overcome the above two significant challenges and the design principles for constructing an ideal CDP by highlighting selected major progress made in this rapidly expanding field.

关键词： chemically depolymerizable polymers sustainable polymers depolymerization monomer recovery degradation plastics

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Carbon dioxide:a renewable feedstock for the synthesis of fine and bulk chemicals

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Frontiers of Chemical Science and Engineering 2010年第2期4卷 213-235页

作者： Yogesh P.PATIL Pawan J.TAMBADE Sachin R.JAGTAP Bhalchandra M.BHANAGE institute of Chemical Technology(Autonomous) N.Parekh MargMatungaMumbai-400019India

The syntheses of carbon dioxide(CO_(2))based industrially important chemicals have gained considerable interest in view of the sustainable chemistry and“green chemistry”*** this review,recent developments in the chemical fixation of CO_(2)to valuable chemicals are *** synthesis of five-member cyclic carbonates via,cycloaddition of CO_(2)to epoxides is one of the promising reactions replacing the existing poisonous phosgene-based synthetic *** review focuses on the synthesis of cyclic carbonates,vinyl carbamates,and quinazoline-2,4(1H,3H)-diones via reaction of CO_(2)and epoxide,amines/phenyl acetylene,2-aminobenzinitrile and other *** synthesis of dimethyl carbonate,1,3-disubstituted urea and 2-oxazolidinones/2-imidazolidinones have limitations at present because of the reaction equilibrium and chemical inertness of CO_(2).The preferred alternatives for their synthesis like transesterification of ethylene carbonate with methanol,transamination of ethylene carbonate with primary amine and transamination reaction of ethylene carbonate with diamines/β-aminoalcohols are *** methodologies offer marked improvements for greener chemical fixation of CO_(2)in to industrially important chemicals.

关键词： carbon dioxide catalysts industrial important chemicals organic carbonates green chemistry urea synthesis

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Fluorine-containing drugs approved by the FDA in 2021

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Chinese Chemical Letters 2023年第1期34卷 29-38页

作者： Jingrui He Ziyi Li Gagan Dhawan Wei Zhang Alexander E.Sorochinsky Greg Butler Vadim A.Soloshonok Jianlin Han Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing 210037China Department of Biomedical Science Acharya Narendra Dev CollegeUniversity of DelhiNew Delhi 110019India Department of Chemistry University of Massachusetts BostonBostonMA 02125United States V.P.Kukhar institute of Bioorganic Chemistry and Petrochemistry The National Academy of Sciences of UkraineKyiv 02094Ukraine Oakwood Chemical Inc.EstillSC 29918United States Department of Organic Chemistry I Faculty of ChemistryUniversity of the Basque Country UPV/EHU20018 San SebastiánSpain IKERBASQUE Basque Foundation for SciencePlaza Bizkaia48013 BilbaoSpain

Nine new fluorine-containing drugs have been approved by the US Food and Drug Administration(FDA)in 2021,which are presented in this review *** small molecular drugs feature aromatic fluorine,trifluoromethyl and chlorodifluoro *** therapeutic areas of these fluorine-containing drugs include multiple myeloma,lymphoma,HIV,chronic heart failure,chronic myeloid leukemia,(ANCA)-associated vasculitis,migraines,von Hippel-Lindau disease,and non-small cell lung *** brief biological activities and the synthetic methods have been discussed in this review for each of these nine drugs.

关键词： Fluorine-containing compounds Blockbuster drugs Pharmaceuticals Anti-cancer Drug design and development Asymmetric synthesis

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Recent advances in catalytic conversion of carbon dioxide to propiolic acids over coinage-metal-based catalysts

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Journal of Energy Chemistry 2021年第8期30卷 572-580,I0012页

作者： Tianyu Zhang Jiawei Zhong Zhilian Wu Department of Chemistry Joint Institute for Advanced MaterialsUniversity of Tennessee37996 KnoxvilleUnited States Department of Chemical and Biomolecular Engineering National University of Singapore4 Engineering Drive117585 SingaporeSingapore Ningbo Fengcheng Advanced Energy Materials Research institute Co. Ltd.Ningbo 315500China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055China

The conversion of inexpensive,available C1 feedstock of carbon dioxide(CO_(2))into value-added fine chemicals via homogeneous or heterogeneous catalysis has attracted great recent ***-based(Cu,Ag,and Au)catalysis has emerged as a synthetic strategy for a wide range of organic chemical reactions in past *** coinage-metal-catalyzed carboxylation,CO_(2)is adopted as a carboxylation reagent,while coinage-metal salts,complexes,and nanoparticles(NPs)serve as a Lewis acid catalyst to activate unsaturated chemicals,particularly *** mini-review focuses on the recent advances of coinage-metal-catalyzed carboxylation of terminal alkynes with CO_(2).Other respects,such as the role of bases,the influence of trace water,and solvent effects are also highlighted.

关键词： Carbon dioxide Terminal alkynes Propiolic acids Catalysis

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Optimization Agricultural Supply Chain:A Case Study of Fertilizer Supplier Selection

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Computers, Materials & Continua 2022年第8期72卷 4057-4068页

作者： Nguyen Van Thanh Nguyen Thi Kim Lan Syed Tam Husain Nguyen Hoang Hai Nguyen Viet Tinh Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam International Education institute Van Lang UniversityHo Chi Minh CityVietnam

The 21st century is associated with the industrialRevolution 4.0 and the organic agriculture trend,making the utilization of high-quality fertilizers,abundant nutritional content,economical,and no affect to environment *** to the new concept,clean agricultural production and organic agricultural products are not allowed to excessively use synthetic chemicals such as chemical fertilizers,and plant protection drugs,but priority is to use manure,organic fertilizers,and natural mineral *** must meet the balanced nutritional requirements of crops,maintain,and improve the fertility of the ground,protect the surrounding ecosystem,and leave harmful effects in agricultural products,products with high quality,safe for users and high economic efficiency for *** achieve the above goal,the selection of a fertilizer supplier is an important decision,supporting the supply chain’s sustainable development,fertilizer supplier selection is a multicriteria decision making model,the decision maker must assess all qualitative and quantitative *** this paper,the author proposed an integer decision making model including Fuzzy Analytic Hierarchy Process(FAHP)and Complex Proportional Assessment of Alternatives(COPRAS)for fertilizer supplier *** weightings of the criteria are calculated by using FAHP,COPRAS is then applied for ranking some potential fertilizer *** efficiency of the proposed models is proved by a case study conducted in a farm located in the south of *** research is the first fertilizer supplier evaluation and se-lection model in Vietnam by interviewing experts and reviewing the ***-search result is to provide a case study on evaluating supplier in agricultural supply chain utilizing the model proposed by the combination of FAHP and COPRAS models.

关键词： Fertilizer industry optimization model fuzzy theory agricultural supply chain

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Recent Progress of Asymmetric Catalysis from a Chinese Perspective

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CCS Chemistry 2023年第12期5卷 2685-2716页

作者： Yan-Mei He Yuan-Zheng Cheng Yingdong Duan Yan-Dong Zhang Qing-Hua Fan Shu-Li You Sanzhong Luo Shou-Fei Zhu Xue-Feng Fu Qi-Lin Zhou Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190 State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032 Center of Basic Molecular Science Department of ChemistryTsinghua UniversityBeijing 100084 State Key Laboratory and institute of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071 Department of Chemical Sciences National Natural Science Foundation of ChinaBeijing 100085

The precise construction of chiral molecules is a core research area in chemical science and *** the plethora of reported synthetic methods,asymmetric catalysis has emerged as one of the most efficient and direct ways to obtain optically pure chiral *** article mainly reviews the recent progress of asymmetric catalysis made by Chinese chemists from the following aspects:the development of new chiral ligands,transition metal-catalyzed asymmetric reactions,asymmetric organocatalytic reactions,and new strategies for asymmetric *** review does not intend to be comprehensive;only representative examples are selected to highlight the important progress made in this ***,a brief outlook is given on the development of novel chiral ligands/catalysts,new enantioselective reactions,and their applications in chiral drugs and agricultural chemicals.

关键词： asymmetric catalysis chiral ligands organocatalysts enantioselective reactions cooperative catalysis

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