bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Sultam Synthesis via Cu‐Catalyzed Intermolecular Carboamination of Alkenes with N‐Fluorobenzenesulfonimide.
Authors: Kaneko Keiichi , Yoshino Tatsuhiko , Matsunaga Shigeki , Kanai Motomu 
Published: October 2013

AbstractA variety of terminal alkenes (II) and a cyclohexene (VII) react with NFSI (I) to afford the corresponding sultams with moderate to good yields.
ChemInform Abstract: Ene Reactions of (Z)‐1,4‐Bis(trimethylsilyl)buta‐1,2,3‐triene with α,β‐Unsaturated Carbonyl Compounds.
Authors: Suzuki Noriyuki , Kaneko Masahiro , Kuroda Yasushi , Sasaki Amane , Masuyama Yoshiro 
Published: October 2013

AbstractThe reaction proceeds without cleavage of the C—Si bond.
ChemInform Abstract: o‐(Hydroxyalkyl)phenyl P‐Chirogenic Phosphines as Functional Chiral Lewis Bases.
Authors: Remond Emmanuelle , Bayardon Jerome , Takizawa Shinobu , Rousselin Yoann , Sasai Hiroaki , Juge Sylvain 
Published: October 2013

AbstractThe stereoselective synthesis of P‐chirogenic phosphines bearing an o‐hydroxyalkyl chain is described.
ChemInform Abstract: Synthesis, Structural Characterization and Properties of SrAl4‐xGex, BaAl4‐xGex, and EuAl4‐xGex (x ≈ 0.3—0.4) — Rare Examples of Electron‐Rich Phases with the BaAl4 Structure Type.
Authors: Zhang Jiliang , Bobev Svilen 
Published: October 2013

AbstractEuAl4, EuAl3.68Ge0.32, SrAl3.59Ge0.41, and BaAl3.66Ge0.34 are synthesized from the elements using Al as a flux (Nb tubes, 1100 °C for 5 min and 800 °C for 20 min).
ChemInform Abstract: Photoluminescence Properties of Ca0.99Eu0.01 (Mo1‐xSix)O4 Nanocrystals Red‐Phosphors Obtained by the Hydrothermal Method.
Authors: Zhang Zhi‐wei , Liu Lu , Shen Xi‐hai , Peng You‐shun , Cao Chun‐yan , Zhang Wei‐guo , Wang Dong‐jun 
Published: October 2013

AbstractThe nanocrystals phosphors Ca0.99Eu0.01 (Mo1‐xSix)O4 (x: 0.03, 0.05, 0.07) are prepared by hydrothermal reaction of (NH4)6Mo7O24, CaO, Eu(NO3)3, and Si(O‐Et)4 (H2O, autoclave, 160 °C, 10 h).
ChemInform Abstract: Magnetic Properties of Ferromagnetic Pu2Pt3Si5.
Authors: Griveau J.‐C. , Colineau E. , Bouexiere D. , Gofryk K. , Klimczuk T. , Rebizant J. 
Published: October 2013

AbstractThe new plutunium based title compound is prepared from a mixture of the elements using Sn as a flux (Np:Pt:Si:Sn = 1:4:20:40, alumina crucible, slow temperature increase to 1050 °C, followed by slow cooling).
ChemInform Abstract: Impact of Carbon Insertion on the Microstructure and Magnetic Properties of Nanocrystalline Pr2Co7 Alloys.
Authors: Fersi R. , Cabie M. , Mliki N. , Bessais L. 
Published: October 2013

AbstractPr2Co7Cx carbides (x = 0, 0.25, 0.5, 0.75) are prepared by arc melting of pure components in stoichiometric proportions followed by high energy ball milling and annealing at 873—1323 K.
ChemInform Abstract: Asymmetric Hydrogenation of β‐Amino Ketones with the Bimetallic Complex RuPHOX‐Ru as the Chiral Catalyst.
Authors: Wang Jiahao , Liu Delong , Liu Yangang , Zhang Wanbin 
Published: October 2013

AbstractHighly efficient asymmetric hydrogenation of a series of β‐amino ketones is achieved using a stable bimetallic chiral ruthenocene catalyst.
ChemInform Abstract: Synthesis of Glutamic Acid and Highly Functionalized Pyrrolidine Derivatives by Utilizing Tunable Calcium Catalysts for Chemoselective Asymmetric 1,4‐Addition and [3 + 2] Cycloaddition Reactions.
Authors: Hut'ka Martin , Tsubogo Tetsu , Kobayashi Shu 
Published: October 2013

AbstractThe direction of calcium‐catalyzed reaction of Schiff bases with acrylic acid esters and amides depends on the structure of starting compounds leading to either glutamic acid derivatives or substituted pyrrolidines.
ChemInform Abstract: Microwave‐Mediated Cycloaddition of Azides to Propargylic Ethers in PEG‐200.
Authors: Rao Hulluru Surya Prakash , Chakibanda Guravaiah 
Published: October 2013

AbstractMicrowave‐mediated click reactions for the synthesis of a variety of natural product triazole conjugates such as (III) and (V) (15 examples) in PEG 200 are reported.
ChemInform Abstract: Copper/TEMPO Catalyzed Synthesis of Nitriles from Aldehydes or Alcohols Using Aqueous Ammonia and with Air as the Oxidant.
Authors: Dornan Laura M. , Cao Qun , Flanagan James C. A. , Crawford James J. , Cook Matthew J. , Muldoon Mark J. 
Published: October 2013

AbstractThe title reaction with aromatic aldehydes is carried out in a standard glassware open flask with 10 mol% of catalyst loading.
ChemInform Abstract: The Indium‐Catalyzed Hydration of Alkynes Using Substoichiometric Amounts of PTSA as Additive.
Authors: Gao Qi , Li Shenyan , Pan Yingming , Xu Yanli , Wang Hengshan 
Published: October 2013

AbstractA general, efficient, and highly regioselective protocol for the transformation of alkynes to the corresponding ketones is presented.
ChemInform Abstract: Bu4NI‐Catalyzed Decarboxylative Acyloxylation of an sp3 C—H Bond Adjacent to a Heteroatom with α‐Oxocarboxylic Acids.
Authors: Zhang Shuai , Guo Li‐Na , Wang Hua , Duan Xin‐Hua 
Published: October 2013

AbstractA novel metal‐free decarboxylative acyloxylation of an sp3 C—H bond in formamides (II) and ethers (IV) is developed.
ChemInform Abstract: Synthesis of Benzidine Derivatives via FeCl3·6H2O‐Promoted Oxidative Coupling of Anilines.
Authors: Ling Xuege , Xiong Yan , Huang Ruofeng , Zhang Xiaohui , Zhang Shuting , Chen Changguo 
Published: October 2013

AbstractA novel and efficient synthesis of a wide range of different functionalized benzidine derivatives under open flask conditions is developed.
ChemInform Abstract: Amberlite IR‐120H as an Efficient and Versatile Solid Phase Catalyst for Nucleophilic Substitution of Propargylic Alcohols.
Authors: Gujarathi Satheesh , Hendrickson Howard P. , Zheng Guangrong 
Published: October 2013

AbstractThe method is advantageous with regards to simplicity in operation, mild conditions, and complete regioselectivity.
ChemInform Abstract: The Heterocyclic Ring of 4‐Substituted‐1,8‐naphthalimides is NOT Inert to Nucleophilic Attack, Contrary to Earlier Reports.
Authors: McKenney Ryan K. , Groess Leah L. , Kopidlansky Kyle M. , Dunkle Kelsey L. , Lewis David E. 
Published: October 2013

AbstractThe heterocyclic ring of title compounds (I) and (IV), reported to be resistant to nucleophilic attack, reacts with primary amine nucleophiles at room temperature to the corresponding N‐alkyl derivatives (IV) and (VII), respectively (yield not given in part).
ChemInform Abstract: Copper‐Catalyzed Highly Enantioselective Cyclopentannulation of Indoles with Donor—Acceptor Cyclopropanes.
Authors: Xiong Hu , Xu Hao , Liao Saihu , Xie Zuowei , Tang Yong 
Published: October 2013

AbstractThe new Cu(II)‐catalyzed cyclopentannulation of indoles using a new bis(oxazolinyl) ligand is highly diastereo‐ and enantioselective.
ChemInform Abstract: Pd(II)‐Catalyzed Aerobic Oxidation Intramolecular Hydroamination and C—H Functionalization of N‐Alkynyl Anilines for the Synthesis of Indole Derivatives.
Authors: Ren Long , Shi Zhuangzhi , Jiao Ning 
Published: October 2013

AbstractOptimized conditions allow the selective preparation of pyrroloindole derivatives (II) with the exception that halo‐substituted substrates (III) give pyrroles (V) as side products.
ChemInform Abstract: Safe and Highly Efficient Syntheses of Triazole Drugs Using Cu2O Nanoparticle in Aqueous Solutions.
Authors: Wang Jing‐Han , Pan Cheng‐Wen , Li Yong‐Tao , Meng Fan‐Fei , Zhou Hong‐Gang , Yang Cheng , Zhang Quan , Bai Cui‐Gai , Chen Yue 
Published: October 2013

AbstractThe procedure is investigated to synthesize rufinamide (III) or triazole analogues of imatinib.
ChemInform Abstract: A Rapid Click Chemistry Using β‐Cyclodextrin Immobilized on Glass Micro‐Particles.
Authors: Tahir Muhammad Nazir , Qamar Riaz‐ul , Mischnick Petra , Kim Jaebum , Jung Seunho 
Published: October 2013

Abstractβ‐Cyclodextrin immobilized on glass microparticles is shown to be an excellent catalyst for the cycloaddition of azides to alkynes.
ChemInform Abstract: Facile and Scalable Preparation of 2‐Imidazolylpyridines.
Authors: Raba Andreas , Anneser Markus R. , Jantke Dominik , Cokoja Mirza , Herrmann Wolfgang A. , Kuehn Fritz E. 
Published: October 2013

AbstractBase‐mediated reaction of 2‐halopyridines with 3 equiv.
ChemInform Abstract: Amine‐Promoted Asymmetric [4 + 2] Annulations for the Enantioselective Synthesis of Tetrahydropyridines: A Traceless and Recoverable Auxiliary Strategy.
Authors: Hu Pengfei , Hu Jian , Jiao Jiajun , Tong Xiaofeng 
Published: October 2013

AbstractThe allenic ester (I) undergoes addition reaction with chiral secondary amines such as 2‐benzylmorpholine to generate enamine intermediates which readily undergo aza‐Diels—Alder reaction with tosylimines.
ChemInform Abstract: Copper(II)‐Catalyzed Three‐Component Cascade Annulation of Diaryliodoniums, Nitriles, and Alkynes: A Regioselective Synthesis of Multiply Substituted Quinolines.
Authors: Wang Yong , Chen Chao , Peng Jing , Li Ming 
Published: October 2013

AbstractA regioselective synthesis of a variety of substituted quinolines is developed using a Cu(II)‐catalyzed three‐component [2 + 2 + 2] cyclocondensation of diaryliodonium ions, nitriles, and alkynes, whereat the aryl group of the diaryliodonium serves as a C2 building block.
ChemInform Abstract: Iodine—Sodium Acetate (I2—NaOAc) Mediated Oxidative Dimerization of Indolizines: An Efficient Method for the Synthesis of Biindolizines.
Authors: Mamedov Vakhid A. , Kalinin Aleksey A. , Samigullina Aida I. , Mironova Ekaterina V. , Krivolapov Dimitry B. , Gubaidullin Aidar T. , Rizvanov Il'dar K. 
Published: October 2013

AbstractThe reaction of substrates (I) and (III) proceeds under extremely mild conditions to give target compounds of type (II) and macrocyclic ring systems (IV) including biindolizine fragments.
ChemInform Abstract: Successive Regioselective Metalations of Fused Heterocycles: Synthesis of Polyfunctionalized Furo[3,2‐b]pyridines.
Authors: Jasselin‐Hinschberger Adeline , Comoy Corinne , Chartoire Anthony , Fort Yves 
Published: October 2013

AbstractA series of title compounds is synthesized using different lithiation methods.
ChemInform Abstract: Synthesis and Antiproliferative Activity of Selenoindirubins and Selenoindirubin‐N‐glycosides.
Authors: Langer Peter , et al. et al. 
Published: October 2013

AbstractA series of novel title compounds, e.g. (I) and (II), are prepared from 3‐acetoxy‐benzo[b]selenophene and isatins or isatin‐N‐glycosides.
ChemInform Abstract: Synthesis and Antimicrobial Activity of Some 2‐Pyridone Nucleosides Containing a Sulfonamide Moiety.
Authors: Moustafa Ahmed H. , El‐Sayed Hassan A. , Haikal Abd El‐Fattah Z. , Abd El‐Hady Rasha A. 
Published: October 2013

AbstractCompounds (Va) and (VIb) possess significant antibacterial activity while all of the tested compounds show antifungal activity.
ChemInform Abstract: On the Crystal Energy and Structure of A2TinO2n+1 (A: Li, Na, K) Titanates by DFT Calculations and Neutron Diffraction.
Authors: Catti Michele , Pinus Ilya , Scherillo Antonella 
Published: October 2013

AbstractThe formation energies of the title alkali layered titanates (n = 3, 4, 6) are determined by DFT calculations for different monoclinic structure configurations.
ChemInform Abstract: Sulfuric Acid‐Modified PEG‐6000 (PEG—OSO3H): A Biodegradable, Reusable Solid Acid Catalyst for Highly Efficient and Eco‐Friendly Synthesis of Novel Bis‐Knoevenagel Products under Solvent‐Free Conditions.
Authors: Siddiqui Zeba N. , Khan Tabassum 
Published: October 2013

AbstractOptimized reaction conditions including PEG‐OSO3H as the catalyst allow the synthesis of bis‐Knoevenagel adducts in excellent yields from terephthalaldehyde with various acyclic and cyclic active methylene compounds.
ChemInform Abstract: Aniline Mediated Oxidative C—C Bond Cleavage of α‐Alkoxy Aldehydes in Air and a Model Reaction for the Synthesis of α‐(D)‐Amino Acid Derivatives.
Authors: Hu Bin , Li Yunfeng , Li Zhongjun , Meng Xiangbao 
Published: October 2013

AbstractA metal‐free, 4‐methylatione mediated method for the oxidative C—C bond cleavage is described.
ChemInform Abstract: Cyclometalated Metal—Organic Frameworks as Stable and Reusable Heterogeneous Catalysts for Allylic N‐Alkylation of Amines.
Authors: Dau Phuong V. , Cohen Seth M. 
Published: October 2013

AbstractOne of the first and most effective MOF‐based heterogeneous organometallic catalysts for the direct formation of C—N bonds is developed.
ChemInform Abstract: Iridium‐Catalyzed 1,3‐Hydrogen Shift/Chlorination of Allylic Alcohols.
Authors: Ahlsten Nanna , Gomez Antonio Bermejo , Martin‐Matute Belen 
Published: October 2013

AbstractAdditionally a one‐pot procedure for the synthesis of 2‐aminothiazoles from allylic alcohols is described.
ChemInform Abstract: Thiourea‐Phosphonium Salts from Amino Acids: Cooperative Phase‐Transfer Catalysts in the Enantioselective Aza‐Henry Reaction.
Authors: Cao Dongdong , Chai Zhuo , Zhang Jiaxing , Ye Zhengqing , Xiao Hua , Wang Hongyu , Chen Jinhao , Wu Xiaoyu , Zhao Gang 
Published: October 2013

AbstractThe catalysts are synthesized from readily available and inexpensive chiral amino acids.
ChemInform Abstract: Enantioselective Redox‐Relay Oxidative Heck Arylations of Acyclic Alkenyl Alcohols Using Boronic Acids.
Authors: Mei Tian‐Sheng , Werner Erik W. , Burckle Alexander J. , Sigman Matthew S. 
Published: October 2013

AbstractThe general and highly selective title reaction affords products, which are difficult to access easily using traditional approaches.
ChemInform Abstract: Visible‐Light Photocatalytic Reduction of Sulfonium Salts as a Source of Aryl Radicals.
Authors: Donck Simon , Baroudi Abdulkader , Fensterbank Louis , Goddard Jean‐Philippe , Ollivier Cyril 
Published: October 2013

AbstractThe photoreduction of triarylsulfonium salts in the presence of activated olefins (II) and (IV) leads to the desired products (III) and (V), respectively.
ChemInform Abstract: Bifunctional Cinchona Alkaloid Squaramide Catalyzed Highly Enantioselective Aza‐Michael Addition of Indolines to α,β‐Unsaturated Ketones.
Authors: Ghosh Arun K. , Zhou Bing 
Published: October 2013

AbstractIt is shown that CAS is an efficient catalyst for the title process.
ChemInform Abstract: The Cinchona Primary Amine‐Catalyzed Asymmetric Epoxidation and Hydroperoxidation of α,β‐Unsaturated Carbonyl Compounds with Hydrogen Peroxide.
Authors: Lifchits Olga , Mahlau Manuel , Reisinger Corinna M. , Lee Anna , Fares Christophe , Polyak Iakov , Gopakumar Gopinadhanpillai , Thiel Walter , List Benjamin 
Published: October 2013

AbstractA highly enantioselective Weitz—Scheffer‐type epoxidation and hydroperoxidation employing acyclic enones, 5—15‐membered cyclic enones, and α‐branched enals as substrates is presented.
ChemInform Abstract: Synthesis of Unsymmetrical (1,3‐Diarylimidazolidin‐4‐yl) (Aryl)methanone via Mannich Reaction.
Authors: Kaladevi Selvam , Paul Nidhin , Muthusubramanian Shanmugam , Sivakolunthu Subbiah 
Published: October 2013

AbstractImidazolidines trisubstituted at 1‐, 3‐, and 4‐positions with up to three different aryls are efficiently prepared by a non‐catalyzed three component condensation of monophenylacyl anilines, aromatic amines, and formaldehyde.
ChemInform Abstract: An Efficient Synthesis of 1‐Substituted 5‐Bromo‐1H‐tetrazoles
Authors: Myznikov Leonid , Dmitrieva Ulyana , Artamonova Tatiana , Roh Jaroslav , Hrabalek Alexandr , Zevatskii Yuri 
Published: October 2013

Abstract1H‐Tetrazole‐5‐thiols are converted into the 5‐bromo derivatives upon treatment with ZnBr2 and peracetic acid.
ChemInform Abstract: Synthesis of Quinolines and Fused Pyridocoumarins from N‐Propargylanilines or Propargylaminocoumarins by Catalysis with Gold Nanoparticles Supported on TiO2.
Authors: Symeonidis Theodoros S. , Lykakis Ioannis N. , Litinas Konstantinos E. 
Published: October 2013

AbstractIntramolecular cyclization reactions of propargylaminocoumarins and propargylanilines in the presence of gold nanoparticles supported on TiO2 or Al2O3 allow the synthesis of pyridocoumarins and quinolines, respectively.
ChemInform Abstract: Synthesis of 5H‐[1,3]Thiazolo[3,2‐a]pyrimidin‐5‐one Derivatives.
Authors: Veretennikov E. A. , Pavlov A. V. 
Published: October 2013

AbstractA series of thiazolo[3,2‐a]pyrimidin‐5‐one derivatives (III) are synthesized via PPA‐mediated reaction of 2‐aminothiazoles with ethyl acetoacetate.
ChemInform Abstract: Rh2(OAc)4‐Catalyzed Reaction of α‐Diazocarbonyl Compounds with 2‐Carbonyl‐Substituted 2H‐Azirines.
Authors: Zavyalov Kirill V. , Novikov Mikail S. , Khlebnikov Alexander F. , Yufit Dmitry S. 
Published: October 2013

AbstractThe rhodium catalyzed reaction of azirines (I) and (IV) with dimethyl diazomalonate involves azirinium ylide formation, isomerization, and 1,6‐π‐electrocyclization to provide 1,3‐oxazines (III) and (V), respectively.
ChemInform Abstract: Novel Chiral Ferrocenylpyrazolo[1,5‐a][1,4]diazepin‐4‐one Derivatives — Synthesis, Characterization and Inhibition Against Lung Cancer Cells.
Authors: Shen Shi‐Li , Shao Jin‐Hui , Luo Ji‐Zhuang , Liu Jin‐Ting , Miao Jun‐Ying , Zhao Bao‐Xiang 
Published: October 2013

AbstractThe compounds (IIIb) and (IIIc) show notable cytotoxicity and selectivity for A549 vs H1299 and H322 lung cancer cells.
ChemInform Abstract: Highly Selective Copper‐Catalyzed Hydroboration of Allenes and 1,3‐Dienes.
Authors: Semba Kazuhiko , Shinomiya Masataka , Fujihara Tetsuaki , Terao Jun , Tsuji Yasushi 
Published: October 2013

AbstractFormation of allylboranes or alkenylboranes depends on the borylating agent and conditions used.
ChemInform Abstract: Tandem Gold‐Catalyzed Hydrosilyloxylation—Aldol and —Mannich Reaction with Alkynylaryloxysilanols in 6‐exo Mode.
Authors: Lee Euichul , Ryu Taekyu , Park Youngchul , Park Sangjune , Lee Phil Ho 
Published: October 2013

AbstractThe intramolecular hydrosilyloxylation of silanols (I) affords enol silyl ethers (II), which are used as substrates for Mannich and aldol reactions.
Polymere mit Temperatur‐ und Formgedächtnis
Authors: Feil Sylvia 
Published: October 2013

AbstractWährend es schon verschiedene Formgedächtnis‐Polymere mit einem einmaligen Formänderungseffekt gibt, sind solche mit umkehrbaren Formänderungen neu. Die Idee dahinter ist, ein inneres Gerüst aus kristallinen Bereichen als Hochtemperaturform zu wählen, während die Kristallisation von Bereichen, welche in der Hochtemperaturform amorph vorliegen, die Niedertemperaturform bestimmt. Die Formänderung basiert dann auf dem Schmelzen oder Kristallisieren dieser Bereiche, die als Aktoren fungieren.
Perspektiven für Akademiker
Authors: Schweiß Vanessa 
Published: October 2013

AbstractNoch immer gilt: Mit einem Hochschulabschluss hat man gute Karrierechancen und ein geringes Risiko, dauerhaft arbeitslos zu bleiben. Laut einer Studie der Agentur für Arbeit finden 53 Prozent der Hochschulabsolventen innerhalb der ersten drei Monate nach Studienabschluss einen Job und nur 2,5 Prozent der Akademiker sind dauerhaft arbeitslos. Damit liegen Akademiker in Deutschland unter dem gesamtdeutschen Schnitt von 6 Prozent und weit unter der europäischen Akademikerarbeitslosigkeit von 5,6 Prozent.
Molecular Drug Resistance Prediction for Acetohydroxyacid Synthase Mutants Against Chlorsulfuron Using MB‐QSAR
Authors: He Yinwu , Niu Congwei , Wen Xin , Xi Zhen 
Published: October 2013

AbstractChlorsulfuron is the first commercialized sulfonylurea herbicide, which targets acetohydroxyacid synthase (AHAS). Mutations in AHAS have caused serious herbicide resistance to chlorsulfuron. Quantitative description of the herbicide resistance in molecular level will benefit the understanding of the resistance mechanism and aid the design of resistance‐evading herbicide. We have recently established a MB‐QSAR (Mutation‐dependent Biomacromolecular Quantitative Structure‐Activity Relationship) method to conduct the 3D‐QSAR study in biomacromolecules. Herein, based on the herbicide resistance data measured for a series of AHAS mutants against chlorsulfuron, we constructed MB‐QSAR models to quantitatively predict the herbicide resistance and interpret the structure resistance relationships for AHAS mutants against chlorsulfuron. Quite well correlations between the experimental and the predicted pKi values were achieved for MB‐QSAR/CoMFA (q2=0.705, r2=0.918, r2pred=0.635) and MB‐QSAR/CoMSIA (q2=0.558, r2=0.940, r2pred=0.527) models, and interpretation of the MB‐QSAR models gave chemical intuitive information to guide the resistance‐evading herbicide design.
Design, Synthesis and Preliminary Biological Evaluation of Purine‐2,6‐diamine Derivatives as Cyclin‐dependent Kinase (CDK) Inhibitors
Authors: Wang Junhua , Wang Quande , Zhang Liangren , Fang Hao 
Published: October 2013

AbstractNovel purine‐2,6‐diamine derivatives were designed and synthesized as cyclin‐dependent kinase (CDK) inhibitors. According to the preliminary biological evaluation, most of the compounds show good inhibitory activities in CDK1 enzyme assay and potent antiproliferative activities in some tumor cell lines. Especially, compound 11a (IC50=0.35 µmol/L for CDK1/cyclin B and IC50=0.023 µmol/L for CDK2/cyclin A) possessed better inhibitory effect compared with Roscovitine (IC50=2.54 (mol/L for CDK1/cyclin B and IC50=0.092 µmol/L for CDK2/cyclin A).
Synthesis and Photovoltaic Properties of Polythiophene Incorporating with 3,4‐Difluorothiophene Units
Authors: Huang Linquan , Yang Dong , Gao Qiang , Liu Yan , Lu Shengmei , Zhang Jian , Li Can 
Published: October 2013

AbstractTwo polythiophene derivatives using fluorine atoms and hexyl or hexyloxy group as electron‐withdrawing and donating substituents have been synthesized. The introduction of fluorine atoms to the polythiophene backbones simultaneously lowers the HOMO and narrows the bandgap, and the stronger electron‐donating ability of hexyloxy side chain further reduces the bandgap. As a result, poly[3‐hexylthiophene‐2,5‐diyl‐alt‐3,4‐difluorothiophene] (PHTDFT) shows HOMO and bandgap of −5.31/1.83 eV and poly[3,4‐dihexyloxythiophene‐2,5‐diyl‐alt‐3,4‐difluorothiophene] (PDHOTDFT) shows HOMO and bandgap of −5.14/1.68 eV, both are lower than −4.76/2.02 eV of P3HT. Benefiting from the lower HOMO, PHTDFT:PC61BM (1:1) polymer solar cells obtain a power conversion efficiency of 1.11% and an impressed open‐circuit voltage of 0.79 V under solar illumination AM1.5 (100 mW/cm2).
Room‐Temperature Bismuth‐Catalyzed Bis‐arylation of Carbonyl Compounds with Aryl Ethers and Phenols
Authors: Liu Congrong , Li Manbo 
Published: October 2013

AbstractUsing Bi2(SO4)3 as the catalyst and TMSCl as the additive, a wide variety of aldehydes, ketones, and acetals were smoothly condensed with aryl ethers at room temperature to provide the corresponding diarylmethanes and triarylmethanes selectively in good to excellent yields.