首页期刊导航|中国化学快报（英文版）
期刊信息/Journal information
中国化学快报（英文版）
中国化学快报（英文版）

梁晓天

月刊

1001-8417

cclbj@imm.ac.cn

010-63165638

100050

北京市先农坛街1号

中国化学快报（英文版）/Journal Chinese Chemical LettersCSCDCSTPCD北大核心SCI
查看更多>>本刊是由中国科协主管、中国化学会主办、中国医学科学院药物所承办的学术期刊，是由著名化学家梁晓天院士主编。是中国化学界通向世界的窗口，内容覆盖化学全领域。本刊的办刊宗旨是“新、快、准”，我们将坚持这个宗旨，力求及时反映化学研究中各个相关领域内的最新进展及热点问题，主要读者群是科研人员、研究生、大学教师。现已被国内外多家数据库收录，如SCI　Search、Chemical Abstract、Research Alert、Chemistry Citation Index、《日本科技文献速报》、万方数据数字化期刊群、中国学术期刊过刊全文数据库、中国学术期刊（光盘版）、中国学术期刊文摘、中文期刊全文数据库、俄罗斯Рж期刊源等。
正式出版
收录年代

    Recent progress of in situ/operando characterization techniques for electrocatalytic energy conversion reaction

    Zhao LiHuimin YangWenjing ChengLin Tian...
    92-101页
    查看更多>>摘要：Catalysts can significantly promote the reaction dynamics and are therefore considered crucial compo-nents for achieving high electrochemical energy conversion efficiency.However,the active sites of the catalysts,particularly for nano-level and atomic-level catalysts commonly undergo reconstruction under practical applications.Therefore,obtaining an in-depth and systematic understanding on the real active sites through in situ/operando characterization techniques is a prerequisite for establishing the structure-performance relationship and guiding the future design of more efficient electrocatalysts.Herein,we sum-marize the recent progress of in situ/operando characterization techniques for identifying the nature of active sites of electrocatalysts when used in electrocatalytic energy conversion reaction.Specifically,our focus lies in the fundamental principles of various in situ/operando characterization techniques,with par-ticular emphasis on their applications for electrocatalytic reactions.Beyond that,the challenges and per-spective insights are also added in the final section to highlight the future direction of this important field.
      原文链接:
    • 万方数据
    • 维普

    Expanding the toolbox of metal-free organic halide perovskite for X-ray detection

    Xiuwen XuQuan ZhouYacong WangYunjie He...
    102-110页
    查看更多>>摘要：X-ray detection plays a crucial role across various aspects of our daily lives,encompassing medical diag-noses,security screenings,and non-destructive examinations in industrial settings.Given the wide array of application contexts,a wealth of opportunities is entailed with the practical utilization of both organic and inorganic X-ray detection materials.A novel and promising contender in this realm is the emergence of metal-free organic halide perovskites(O-PVSKs),offering great opportunities and tremendous potential in X-ray detection.This potential can be attributed to the distinct crystalline configuration of O-PVSKs,where organic constituents are structured into an ABX3 perovskite arrangement.Consequently,O-PVSKs exhibit captivating characteristics reminiscent of organic materials,such as lightweight nature and mod-ifiability,all while retaining the distinctive traits associated with halide perovskites ranging from diverse structures to tunable optoelectronic properties.This review article delves into the intrinsic attributes of O-PVSKs and critically examines the viability of O-PVSKs in X-ray detection,through which key features that distinguish O-PVSKs from traditional organic semiconductors and perovskites are outlined.This is followed by a perspective given on their future avenues for exploration.
      原文链接:
    • 万方数据
    • 维普

    Recent advances in crystal phase induced surface-enhanced Raman scattering

    Ce LiangQiuhui SunAdel Al-SalihyMengxin Chen...
    111-118页
    查看更多>>摘要：Surface-enhanced Raman scattering(SERS)spectroscopy has emerged as a powerful analytical technique for detecting and identifying trace chemical and biological molecules.In this review,we present an in-depth discussion of recent advances in the field of crystal phase manipulation to achieve exceptional SERS performance.Focusing on transition metal dichalcogenides,(hydr)oxides,and carbides as exemplary materials,we illustrate the pivotal role of crystal phase regulation in enhancing SERS signals.By exploring the correlation between crystal phases and SERS responses,we uncover the underlying principles behind these strategies,thereby shedding light on their potential for future SERS applications.By addressing the current challenges and limitations,we also propose the prospects of the crystal phase strategy to facilitate the development of cutting-edge SERS-based sensing technologies.
      原文链接:
    • 万方数据
    • 维普

    Programmed DNA walkers for biosensors

    Chang LiuTao WuLijiao DengXuzi Li...
    119-129页
    查看更多>>摘要：Nowadays,due to excellent biological and polymeric characteristics,DNA has been widely noted as an emerging building block to construct diverse materials for biosensing,in vivo imaging,drug delivery,and disease therapy.Particularly,relying on programmability,predictability,and stability of DNA,DNA walkers have opened new and exciting opportunities in modern life sciences for target detection and biological analysis,which are constructed by self-assembly of DNA or combining DNA with other nano-materials(e.g.,quantum dots,gold nanoparticles,magnetic nanoparticles,polymers).Compared with con-ventional nanomaterials(lanthanide-doped upconversion nanoparticles,magnetic nanomaterials,carbon dots,silicon dots,and so on),DNA walkers showed convenient modification,lower biotoxicity,excellent biocompatibility and high biostability,improving the biological application.Meanwhile,with high-speed operating efficiency and sustainable operation,DNA walkers powered by strand displacement reaction or protein enzyme/DNAzyme reaction,have highly sensitive detection and signal amplification abilities,which are applied in biosensing,material assembly and synthesis,and early cancer diagnosis.Worthily,DNA walkers could be regarded as signal amplifiers,which enhanced the signal transduction and ampli-fied biosensor sensing signals.Herein,we systematically and comprehensively summarized the operating principles of various DNA walkers,categorized rational design of the DNA walker,and outlined the appli-cation of DNA walker in biosensors.Furthermore,the challenges and future trends of DNA walkers were discussed.
      原文链接:
    • 万方数据
    • 维普

    Electricity-driven enantioselective cross-dehydrogenative coupling of two C(sp3)-H bonds enabled by organocatalysis

    Yuemin ChenYunqi WuGuoao WangFeihu Cui...
    130-134页
    查看更多>>摘要：An efficient and scalable electrochemical asymmetric protocol with metal-free catalysts and even with-out additional oxidants for the cross-dehydrogenative coupling reaction(CDC)of two C(sp3)-H bonds is reported.A series of aldehydes including natural products and various substrates containing C(sp3)-H bonds including xanthenes,acridines,cycloheptatrienes and even diarylmethane have been shown to un-dergo asymmetric CDC to afford a series of carbon-carbon bond coupling products with up to 94％yield and 98％ee.Mechanistic studies such as radical clock experiment suggest that the reaction proceeds via nucleophilic attack by enamine under electrochemical conditions.
      原文链接:
    • 万方数据

    Controlled semi-Pinacol rearrangement on a strained ring:Efficient access to multi-substituted cyclopropanes by group migration strategy

    Wenyu GaoLiming ZhangChuang ZhaoLixiang Liu...
    135-139页
    查看更多>>摘要：We describe a versatile electrophile addition/SPR sequence of readily available cyclopropyl carbinols that affords multi-substituted carbonylated cyclopropanes with high stereo-fidelity.This approach tolerates various heteroatom electrophiles,migration of carbon moiety of all possible hybridization states,facile ring reorganization and natural compound valorization.The examples represent an unprecedented ver-sion of SPR wherein migration to a non-benzylic bulky tertiary carbo-cation is realized with promising enantiocontrol.
      原文链接:
    • 万方数据
    • 维普

    Fine-tuning redox ability of arylene-bridged bis(benzimidazolium)for electrochromism and visible-light photocatalysis

    Jing WangZenghui LiXiaoyang LiuBochao Su...
    140-144页
    查看更多>>摘要：In this study,a series of arylene-bridged bis(benzimidazolium)triflates 1-62+·2[OTf-]were synthesized by grafting different π-linkers with benzimidazolium scaffolds.Among them,compound 12+·2[OTf-]with anthracene as the linker exhibited remarkable electron transfer capabilities across four distinct redox states.The inclusion of an anthracene unit as the π-linker contributes to its exceptional redox and opto-electronic characteristics.Consequently,12+·2[OTf-]was successfully utilized as both an electrochromic molecule in an ECD under applied voltage for the first time,and a highly efficient photocatalyst for the formation of carbon-phosphorus bonds via visible-light-induced cross-dehydrogenative coupling re-actions.
      原文链接:
    • 万方数据
    • 维普

    Catalytic C-H activation-initiated transdiannulation:An oxygen transfer route to ring-fluorinated tricyclic γ-lactones

    Qiuyun LiYannan ZhuYining WangGang Qi...
    145-149页
    查看更多>>摘要：Catalytic C-H activation-initiated annulation reactions have emerged as a versatile strategy for the effi-cient construction of diverse ring structural units and complex cyclic molecules in synthetic chemistry.Herein,we describe a new Rh(Ⅲ)-catalyzed C-H activation-initiated transdiannulation reaction of N,N-dimethyl enaminones with gem-difluorocyclopropenes in the presence of H2O,enabling a facile and oxy-gen transfer access to ring-fluorinated tricyclic γ-lactones with a 6-5 ring-junction tetrasubstituted stere-ocenter.This approach features bond-forming/annulation efficiency,good functional group tolerance and complete regioselectivity,which may include a complex process consisting of Rh(Ⅲ)-catalyzed C(sp2)-H activation,cyclic alkene insertion,defluorinated ring-opening of gem-difluorocyclopropane,intramolecular oxygen transfer,intramolecular cyclization and oxidative hydration.
      原文链接:
    • 万方数据

    Enones from aldehydes and alkenes by carbene-catalyzed dehydrogenative couplings

    Kun TangFen SuShijie PanFengfei Lu...
    150-154页
    查看更多>>摘要：Enones are widely explored in synthetic chemistry as fundamental building blocks for a wide range of reactions and exhibit intriguing biological activities that are pivotal for drug discovery.The development of synthetic strategies for highly efficient preparation of enones thereby receives intense attention,in par-ticular through the transition metal-catalyzed coupling reactions.Here,we describe a carbene-catalyzed cross dehydrogenative coupling(CDC)reaction that enables effective assembly of simple aldehydes and alkenes to afford a diverse set of enone derivatives.Mechanistically,the in situ generated aryl radical is pivotal to"activate"the alkene by forming an allyl radical through intermolecular hydrogen atom transfer(HAT)pathway and thus forging the carbon-carbon bond formation with aldehyde as the acyl synthon.Notably,our method represents the first example on the enone synthesis through coupling of"non-functionalized"aldehydes and alkenes as coupling partners,and offers a distinct organocatalytic pathway to the transition metal-catalyzed coupling transformations.
      原文链接:
    • 万方数据
    • 维普

    Transition-metal free trifluoromethylimination of alkenes enabled by direct activation of N-unprotected ketimines

    Boqiang WangYongzhuo XuJiajia WangMuyang Yang...
    155-159页
    查看更多>>摘要：A highly site-selective intermolecular trifluoromethylimination of activated and unactivated olefins was reported under transition-metal-and photosensitizer-free conditions.This newly developed strategy pro-vides straightforward and efficient access to diverse value-added vicinal trifluoromethyl amines without resorting to the pre-functionalized reagents.Mechanistic experiments demonstrate that the approach pro-ceeded through CF3 and iminyl two-radicals process,which were generated directly from commercially available benzophenone imine in a novel electron-donor mode via a SET process activated by the bifunc-tional hypervalent iodine reagents.The synthetic potential of the protocols was further showcased via the condensation/amination sequential cascade,and transformations to access β-CF3 primary amines.
      原文链接:
    • 万方数据
    • 维普