bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis of Purines and Other Fused Imidazoles from Acyclic Amidines and Guanidines.
Authors: Szczepankiewicz Bruce G. , Rohde Jeffrey J. , Kurukulasuriya Ravi
Published: August 2005

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Microwave‐Induced Synthesis of Fluorine Containing 1,5‐Disubstituted Hydantoins and Thiohydantoins and Their Antibacterial Activity.
Authors: Patel V. M. , Desai K. R.
Published: August 2005

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ortho‐Selective Direct Cross‐Coupling Reaction of 2‐Aryloxazolines and 2‐Arylimidazolines with Aryl and Alkenyl Halides Catalyzed by Ruthenium Complexes.
Authors: Oi Shuichi , Aizawa Emi , Ogino Yukako , Inoue Yoshio
Published: August 2005

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Highly Enantioselective Synthesis of (R)‐α‐Alkylserines via Phase‐Transfer Catalytic Alkylation of o‐Biphenyl‐2‐oxazoline‐4‐carboxylic Acid tert‐Butyl Ester Using Cinchona‐Derived Catalysts.
Authors: Lee Yeon‐Ju , Lee Jihye , Kim Mi‐Jeong , Kim Taek‐Soo , Park Hyeung‐geun , Jew Sang‐sup
Published: August 2005

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3‐Bromo‐propenyl Acetate in Organic Synthesis: An Expeditious Route to 3‐Alkyl‐4‐acetoxy‐5‐iodomethyl Isoxazolidines.
Authors: Lombardo Marco , Rispoli Gabriele , Licciulli Sebastiano , Trombini Claudio , Dhavale Dilip D.
Published: August 2005

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Preparation and Cyclization of 4‐Chloro‐5,5‐dimethyl‐3‐formyl‐1,2‐oxathiolene 2,2‐Dioxide.
Authors: Tian Li , Liu Lun‐Zu
Published: August 2005

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Utility of the Azido Transfer Protocol: Synthesis of 2‐ and 5‐Azido N‐Methylimidazoles, 1,3‐Thiazoles and N‐Methylpyrazole and Their Conversion to the Triazole—Azole Bisheteroaryls.
Authors: Zanirato Paolo , Cerini Stefano
Published: August 2005

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N,N‐Dialkyl (N′‐Chlorosulfonyl)chloroformamidines in Heterocyclic Synthesis. Part 1. The Preparation of [1,2,3,5]Thiatriazole and [1,3,2,4]Oxathiadiazole Derivatives.
Authors: Fallon Gary D. , Jahangiri Saba , Liepa Andris J. , Woodgate Ruth C. J.
Published: August 2005

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Stereocontrolled [4 + 2]‐Annulation Accessing Dihydropyrans: Synthesis of the C1a—C10 Fragment of Kendomycin.
Authors: Lowe Jason T. , Panek James S.
Published: August 2005

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Stereoselective Synthesis of trans‐3,4‐Dihydropyran‐2‐ones by Phenoxide Ion‐Catalyzed Tandem Michael Addition and Lactonization.
Authors: Tozawa Takashi , Yamane Yoshinobu , Mukaiyama Teruaki
Published: August 2005

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Efficient Synthesis of Isoflavone Analogues via a Suzuki Coupling Reaction.
Authors: Ding Ke , Wang Shaomeng
Published: August 2005

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Synthesis and Photochemotherapeutic Activity of Thiopyrano[2,3‐e]indol‐2‐ones.
Authors: Cirrincione Girolamo , et al. et al.
Published: August 2005

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Reductive Acylamination of Pyridine N‐Oxide with Aminopyridines and Their N‐p‐Tolylsulfonyl Derivatives.
Authors: Solekhova M. A. , Kurbatov Yu. V.
Published: August 2005

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A One‐Pot Synthesis of Nitrogen‐Containing Heteroaryl α‐Keto Amides from Heteroaryl Halides.
Authors: Zhu Juliang , Wong Henry , Zhang Zhongxing , Yin Zhiwei , Kadow John F. , Meanwell Nicholas A. , Wang Tao
Published: August 2005

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Conversion of Five‐, Six‐, and Seven‐Membered Lactams to Racemic or Scalemic 2‐Substituted Heterocycles by Amidoalkylation.
Authors: Madan Sachin , Milano Peter , Eddings Daniel B. , Gawley Robert E.
Published: August 2005

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Synthesis of 3‐Arylpiperidines by a Radical 1,4‐Aryl Migration.
Authors: Gheorghe Alexandru , Quiclet‐Sire Beatrice , Vila Xavier , Zard Samir Z.
Published: August 2005

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Allylation and Cyanation of Aza‐Aromatics Activated by Chloroformate and a Catalytic Amount of Iodine.
Authors: Yadav J. S. , Reddy B. V. S. , Srinivas M. , Sathaiah K.
Published: August 2005

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Synthesis of 3,4‐Disubstituted Quinolin‐2(1H)‐ones via Palladium‐Catalyzed Regioselective Cross‐Coupling Reactions of 3‐Bromo‐4‐trifloxyquinolin‐2(1H)‐one with Arylboronic Acids.
Authors: Wu Jie , Zhang Liang , Sun Xiaoyu
Published: August 2005

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An Efficient and Simple Aminobenzannulation Reaction: Pyrrolidine as a Trigger for the Synthesis of 1‐Amino‐acridines.
Authors: Belmont Philippe , Belhadj Tahar
Published: August 2005

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Direct, Two‐Step Synthetic Pathway to Novel Dibenzo[a,c]phenanthridines.
Authors: Churruca Fatima , SanMartin Raul , Carril Monica , Urtiaga Miren Karmele , Solans Xavier , Tellitu Imanol , Dominguez Esther
Published: August 2005

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Catalytic Synthesis of Tricyclic Quinoline Derivatives from the Regioselective Hydroamination and C—H Bond Activation Reaction of Benzocyclic Amines and Alkynes.
Authors: Yi Chae S. , Yun Sang Young , Guzei Ilia A.
Published: August 2005

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4‐[(N‐Imidazol‐2‐ylmethyl)anilino]pyranopyridine Analogues as Novel Antiangiogenic Agents.
Authors: Lee Sunkyung , Chae Sun Mi , Yi Kyu Yang , Kim Nakjeong , Oh Chang Ho
Published: August 2005

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Synthesis and in vitro Antioxidant Activity of Some New Fused Pyridine Analogues.
Authors: Al‐Omar Mohamed A. , Youssef Khairia M. , El‐Sherbeny Mabda A. , Awadalla Sit. Albanat A. , El‐Subbagh Hussein I.
Published: August 2005

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Rhodium‐Catalyzed Intramolecular Conjugate Addition of Vinylstannanes to 2,3‐Dihydro‐4‐pyridones. An Efficient Route to Stereoselective Construction of Indolizidines.
Authors: Dziedzic Magdalena , Malecka Marta , Furman Bartlomiej
Published: August 2005

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Facile and Convenient Syntheses of 6,11‐Dihydro‐5H‐indeno[1,2‐c]isoquinolin‐5‐ones and 6,11‐Dihydro‐5H‐indolo[3,2‐c]isoquinolin‐5‐one.
Authors: Jagtap Prakash G. , Baloglu Erkan , Southan Garry , Williams William , Roy Aloka , Nivorozhkin Alexander , Landrau Nelson , Desisto Kevin , Salzman Andrew L. , Szabo Csaba
Published: August 2005

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Aryl Radical Cyclizations of N‐(2‐Halobenzoyl)‐cyclic Ketene‐N,S‐acetals.
Authors: Zhou Aihua , Pittman Charles U. Jr.
Published: August 2005

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Synthetic Studies on Indoles and Related Compounds. Part 54. A New Synthesis of 4‐Oxygenated β‐Carboline Derivatives by Fischer Indolization.
Authors: Suzuki Hideharu , Tsukakoshi Yoshiyuki , Tachikawa Takuya , Miura Yuusuke , Adachi Makoto , Murakami Yasuoki
Published: August 2005

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A One‐Pot Synthesis of 3,4‐Dihydropyrimidin‐2‐(1H)‐ones from Primary Alcohols Promoted by Bi(NO3)3×5H2O in Two Different Media: Organic Solvent and Ionic Liquid.
Authors: Khosropour Ahmad R. , Khodaei Mohammd M. , Beygzadeh Mojtaba , Jokar Mahbubeh
Published: August 2005

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Application of Bis‐acetylenic Ketones in Synthesis: One‐Pot Preparation of the 1,2,4‐Triazepine and Oxatriazaindenone Cores.
Authors: Adamo Mauro F. A. , Baldwin Jack E. , Adlington Robert M.
Published: August 2005

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Direct Synthesis of Hetero‐Biaryl Compounds Containing an Unprotected NH2 Group via Suzuki—Miyaura Reaction.
Authors: Itoh Takahiro , Mase Toshiaki
Published: August 2005

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Some Aspects of Reaction of 6‐Aminouracil and 6‐Amino‐2‐thiouracil with α,β‐Unsaturated Ketones.
Authors: Chebanov Valentin A. , Saraev Vyacheslav E. , Gura Ekaterina A. , Desenko Sergey M. , Musatov Vladimir I.
Published: August 2005

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Synthesis and Isomerization of Thienotriazolopyrimidine and Thienotetrazolopyrimidine Derivatives with Potential Antiinflammatory Activity.
Authors: Rashad A. E. , Heikal O. A. , El‐Nezhawy A. O. H. , Abdel‐Megeid F. M. E.
Published: August 2005

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A Simple Entry to Chiral Non‐racemic 2‐Piperazinone Derivatives.
Authors: Pollini Gian Piero , Baricordi Nikla , Benetti Simonetta , De Risi Carmela , Zanirato Vinicio
Published: August 2005

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Enantioselective Addition of Nitrones to Activated Cyclopropanes.
Authors: Sibi Mukund P. , Ma Zhihua , Jasperse Craig P.
Published: August 2005

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Fluorinated Heterocyclic Compounds. An Effective Strategy for the Synthesis of Fluorinated (Z)‐Oximes of 3‐Perfluoroalkyl‐6‐phenyl‐2H‐1,2,4‐triazin‐5‐ones via a Ring‐Enlargement Reaction of 3‐Benzoyl‐5‐perfluoroalkyl‐1,2,4‐oxadiazoles and Hydrazine.
Authors: Buscemi Silvestre , Pace Andrea , Piccionello Antonio Palumbo , Macaluso Gabriella , Vivona Nicolo , Spinelli Domenico , Giorgi Gianluca
Published: August 2005

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Reactions of 4‐Hydroxy‐3,5‐di‐tert‐butylbenzylhydrazine with β‐Chloroethyl Isocyanate and Isothiocyanates.
Authors: Dinoiu Vasile , Badea Florin
Published: August 2005

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A Novel Intramolecular Diels—Alder Cyclization Involving Indoloazepines.
Authors: Zheng Lianyou , Wang Tiansheng , Wei Zhonglin , Xiang Jinbao , Bai Xu
Published: August 2005

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Studies on Triazene Derivatives of (1,x)‐Diazacycloalkanes. Part 2. Synthesis and Characterization of a Series of 4‐Methyl‐1‐[2‐aryl‐1‐diazenyl]‐1,4‐diazepanes and 1,4‐Di‐[2‐aryl‐1‐diazenyl]‐1,4‐diazepanes.
Authors: Moser Shasta Lee , Vaughan Keith
Published: August 2005

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Synthesis of Tricyclic 4‐Chloro‐pyrimido[4,5‐b][1,4]benzodiazepines.
Authors: Yang Jianxin , Che Xin , Dang Qun , Wei Zhonglin , Gao Shu , Bai Xu
Published: August 2005

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A Simple Route to Tetrahydro‐1,4‐benzodiazepin‐3‐ones Bearing Diverse N1, N4, and C10 Functionalization.
Authors: Clement Ella C. , Carlier Paul R.
Published: August 2005

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Direct Heterocyclization of Benzocrown Ethers.
Authors: Shklyaev Yu. V. , Gorbunov A. A. , Rozhkova Yu. S. , Vshivkova T. S. , Vazhenin V. V. , Maiorova O. A. , Tolstikov A. G. , Dembitsky V. M.
Published: August 2005

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Interaction of Silyl Triflates with Enamines: Iminium Ion Formation versus Silylation.
Authors: Levin Vitalij V. , Dilman Alexander D. , Belyakov Pavel A. , Korlyukov Alexander A. , Struchkova Marina I. , Tartakovsky Vladimir A.
Published: August 2005

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Cyclic Chlorophosphites as Scaffolds for the One‐Pot Synthesis of α‐Aminophosphonates under Solvent‐Free Conditions.
Authors: Swamy K. C. Kumara , Kumaraswamy Sudha , Kumar K. Senthil , Muthiah C.
Published: August 2005

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Transesterification of Trialkyl Phosphates from Alkyl Bromides.
Authors: Lherbet Christian , Castonguay Roselyne , Keillor Jeffrey W.
Published: August 2005

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Synthesis of Primary‐Alkyl Selenols and Selenides from Primary‐Alkyl Thiols Involving Diphenyl Sulfonium Salts.
Authors: Krief Alain , Dumont Willy , Robert Michael
Published: August 2005

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A Highly Regioselective Bisselenation of Allenes with Diphenyl Diselenide Catalyzed by Tetrakis(triphenylphosphine)palladium(0).
Authors: Kamiya Ikuyo , Nishinaka Etsuyo , Ogawa Akiya
Published: August 2005

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Amygdaloidins A—L, Twelve New 13 α‐OH Jatrophane Diterpenes from Euphorbia amygdaloides L.
Authors: Corea Gabriella , Fattorusso Caterina , Fattorusso Ernesto , Lanzotti Virginia
Published: August 2005

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Cytotoxic Diterpenoids from Vietnamese Medicinal Plant Croton tonkinensis Gagnep.
Authors: Giang Phan Minh , Son Phan Tong , Hamada Yumi , Otsuka Hideaki
Published: August 2005

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New cis‐Clerodane Diterpenoids from Croton schiedeanus.
Authors: Puebla Pilar , Correa Sofia Ximena , Guerrero Mario , Carron Rosalia , San Feliciano Arturo
Published: August 2005

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Constituents of Zingiber aromaticum and Their CYP3A4 and CYP2D6 Inhibitory Activity.
Authors: Subehan Subehan , Usia Tepy , Kadota Shigetoshi , Tezuka Yasuhiro
Published: August 2005

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Asymmetric Cyclopropanation of 2,5‐Dimethyl‐2,4‐hexadiene by Copper Catalysts Bearing New Bisoxazoline Ligands.
Authors: Itagaki Makoto , Masumoto Katsuhisa , Yamamoto Yohsuke
Published: August 2005

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Pregnane‐Type Steroids from the Inedible Mushroom Thelephora terrestris.
Authors: Radulovic Niko , Quang Dang Ngoc , Hashimoto Toshihiro , Nukada Makiko , Tanaka Masami , Asakawa Yoshinori
Published: August 2005

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Withanolides from Datura innoxia
Authors: Siddiqui Bina S. , Arfeen Shamsul , Afshan Farhana , Begum Sabira
Published: August 2005

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Cyanosides A—J, Ten Novel Pregnane Glycosides from Cynanchum atratum.
Authors: Bai Hong , Li Wei , Koike Kazuo , Satou Tadaaki , Chen Yingjie , Nikaido Tamotsu
Published: August 2005

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Longicalycinin A, a New Cytotoxic Cyclic Peptide from Dianthus superbus var. longicalycinus (Maxim.) Will.
Authors: Hsieh Pei‐Wen , Chang Fang‐Rong , Wu Ching‐Chung , Li Chien‐Ming , Wu Kuen‐Yuh , Chen Su‐Li , Yen Hsin‐Fu , Wu Yang‐Chang
Published: August 2005

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A Convenient, General Synthesis of 1,1‐Dimethylallyl Esters as Protecting Groups for Carboxylic Acids.
Authors: Sedighi Minoo , Lipton Mark A.
Published: August 2005

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Highly Stereoselective Additions of Tin Enolates to Nitroalkenes and Subsequent Conversion of the Nitro Group into a Nitrile.
Authors: Mendler Barbara , Kazmaier Uli
Published: August 2005

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Microwave‐Accelerated Fischer Glycosylation.
Authors: Bornaghi Laurent F. , Poulsen Sally‐Ann
Published: August 2005

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A Convenient and Efficient Asymmetric Synthesis of (S)‐α‐Arylthiomethyl‐α‐hydroxybutyric Acid Esters.
Authors: Kuang Yun‐Yan , Chen Fen‐Er
Published: August 2005

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Synthesis of N3‐Substituted Uridine and Related Pyrimidine Nucleosides and Their Antinociceptive Effects in Mice.
Authors: Shimizu Tomomi , Kimura Toshiyuki , Funahashi Tatsuya , Watanabe Kazuhito , Ho Ing Kang , Yamamoto Ikuo
Published: August 2005

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A New Efficient Method of 1,2,4‐Triazole‐3‐carboxamide and Ribavirin Synthesis.
Authors: Chudinov M. V. , Konstantinova I. D. , Ryzhova O. I. , Esipov R. S. , Yurkevich A. M. , Shvets V. I. , Miroshnikov A. I.
Published: August 2005

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A New Unsaturated Glycoglycerolipid from a Cultured Marine Dinoflagellate Amphidinium carterae.
Authors: Wu Jun , Long Lijuan , Song Yang , Zhang Si , Li Qingxin , Huang Jianshe , Xiao Zhihui
Published: August 2005

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Ellagitannins and Lignan Glycosides from Balanophora japonica (Balanophoraceae).
Authors: Jiang Zhi‐Hong , Tanaka Takashi , Iwata Hiromi , Sakamoto Saori , Hirose Yoko , Kouno Isao
Published: August 2005

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Two New Isoflavonoids and a New 2‐Arylbenzofuran from the Roots of Erythrina variegata
Authors: Tanaka Hitoshi , Sudo Masaru , Hirata Miyuki , Sako Magoichi , Sato Masaru , Chen Ih‐Sheng , Fukai Toshio
Published: August 2005

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A Facile Method for Synthesis of (R)‐(‐)‐ and (S)‐(+)‐Homocitric Acid Lactones and Related α‐Hydroxy Dicarboxylic Acids from D‐ or L‐Malic Acid.
Authors: Xu Peng‐Fei , Matsumoto Tsuyoshi , Ohki Yasuhiro , Tatsumi Kazuyuki
Published: August 2005

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An Antibacterial Biphenyl Derivative from Garcinia bancana Miq.
Authors: Rukachaisirikul Vatcharin , Naklue Wanpen , Sukpondma Yaowapa , Phongpaichit Souwalak
Published: August 2005

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Synthesis and Antitumor Activity of Some Curcumin Analogues.
Authors: Youssef Khairia M. , El‐Sherbeny Magda A.
Published: August 2005

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Manipulation with Spin Ordering in Ferromagnetic Semiconductors
Authors: Dietl Tomasz
Published: August 2005

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Development of Bi‐2212 Conductors for Magnet Applications
Authors: Miao H. , Marken K. R. , Meinesz M. , Czabaj B. , Hong S.
Published: August 2005

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Metal‐Filled Nanotubes: Synthesis, Analysis, Properties and Applications
Authors: Golberg D. , Bando Y. , Li Y. B. , Hu J. Q. , Zhu Y. C. , Gao Y. H. , Tang C. C.
Published: August 2005

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Crystal‐Chemical Aspect of Formation of CdAs2—ZnAs2 Solid Solutions
Authors: Sanygin V. P. , Mikhailov S. G. , Palkina K. K. , Steblevskii A. V. , Kvardakov A. M. , Marenkin S. F.
Published: August 2005

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Crystal Growth of Superconductive Oxide from Oxide Melts
Authors: Izumi Teruo , Shiohara Yuh
Published: August 2005

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Preparation and Characterization of Supported Palladium Catalysts: Monometallic and Bimetallic
Authors: Mbang Theophile , Ketcha Joseph Mbadcam , Geron Claudine
Published: August 2005

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Theoretical Aspects of Heterogeneous Catalysis: Applications of Density Functional Methods
Authors: Neyman Konstantin M. , Illas Francesc
Published: August 2005

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The Relationship Between Adsorption and Solid Acidity of Heteropolyacids
Authors: Janik Michael J. , Davis Robert J. , Neurock Matthew
Published: August 2005

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DFT Calculations of EPR Parameters of Transition Metal Complexes: Implications for Catalysis
Authors: Saladino Alexander C. , Larsen Sarah C.
Published: August 2005

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The Hydrothermal Synthesis of Zeolites: Precursors, Intermediates and Reaction Mechanism
Authors: Cundy Colin S. , Cox Paul A.
Published: August 2005

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Inorganic and Bioinorganic Solvent Exchange Mechanisms
Authors: Helm Lothar , Merbach Andre E.
Published: August 2005

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Ligand Substitution Reactions at Inorganic Centers
Authors: Richens David T.
Published: August 2005

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Treatment of Substitution and Rearrangement Mechanisms of Transition Metal Complexes with Quantum Chemical Methods
Authors: Rotzinger Francois P.
Published: August 2005

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Ion Pairing in Transition‐Metal Organometallic Chemistry
Authors: Macchioni Alceo
Published: August 2005

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The Potential of Palladacycles: More than Just Precatalysts
Authors: Dupont Jairton , Consorti Crestina S. , Spencer John
Published: August 2005

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Homogeneous versus Heterogeneous Self‐Exchange Electron Transfer Reactions of Metal Complexes: Insights from Pressure Effects
Authors: Swaddle Thomas W.
Published: August 2005

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Redox Chemistry of Nickel Complexes in Aqueous Solutions
Authors: Zilbermann Israel , Maimon Eric , Cohen Haim , Meyerstein Dan
Published: August 2005

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Tautomerism and Various Coordination Modes of Typical Chelating Ligands with Metals
Authors: Garnovskii A. D. , Vasil'chenko I. S.
Published: August 2005

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Carbon‐Bridged Ferrocenophanes
Authors: Park Joon‐Seo , Lee T. Randall
Published: August 2005

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Catalysis with Water‐Soluble Polymer‐Bound Ligands in Aqueous Solution
Authors: Mecking Stefan , Schwab Ernst
Published: August 2005

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The Amphiphilic Approach
Authors: Kamer Paul C. J. , Reek Joost N. H. , van Leeuwen Piet W. N. M.
Published: August 2005

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Catalysis in Fluorous Phases
Authors: Horvath Istvan T.
Published: August 2005

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Asymmetric Synthesis
Authors: Sinou Denis
Published: August 2005

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Alkene Metathesis
Authors: Grubbs Robert H. , Lynn David M.
Published: August 2005

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Hydrodimerization
Authors: Yoshimura Noriaki
Published: August 2005

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Allylic Substitution
Authors: Sinou Denis
Published: August 2005

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Oxidations
Authors: Sheldon Roger A. , Papadogianakis Georgios
Published: August 2005

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Water‐Soluble Organometallics in the Environment
Authors: Herrmann Wolfgang A. , Kuehn Fritz E.
Published: August 2005

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Counter‐Phase Transfer Catalysis
Authors: Okano Tamon
Published: August 2005

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Fun with Furans
Authors: Rowe David
Published: August 2005

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Asymmetric Epoxidation of Non‐Functionalized Alkenes Using Transition Metal Complexes
Authors: Abdi S. H. R. , Kureshy R. I. , Khan N. H. , Jasra R. V.
Published: August 2005

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Bioactive Phenolic Lipids
Authors: Kozubek Arkadiusz , Tyman John H. P.
Published: August 2005

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Antitumor and Vascular Physiological Effects of Natural Products
Authors: Kimura Yoshiyuki
Published: August 2005

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Synthetic Routes to Discodermolide and Pironetin: Two Immunosuppressive and Antitumoral Agents
Authors: Cossy Janine , Bouzbouz Samir
Published: August 2005

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Ten Years of Marine Natural Products Research at Rhodes University
Authors: Davies‐Coleman Michael T. , Beukes Denzil R.
Published: August 2005

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Enzyme‐Catalyzed Regio‐ and Enantioselective Ketone Reductions
Authors: Mueller Michael , Wolberg Michael , Schubert Thomas , Hummel Werner
Published: August 2005

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Synthetic Studies on the Pamamycin Macrodiolides
Authors: Metz Peter
Published: August 2005

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Methanophenazine and Other Natural Biologically Active Phenazines
Authors: Beifuss Uwe , Tietze Mario
Published: August 2005

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Recent Advances in Vinylogous Aldol Reactions and Their Applications in the Syntheses of Natural Products
Authors: Kalesse Markus
Published: August 2005

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Towards Luminescent Polymers. Environmentally Friendly Coumarins Synthesis
Authors: Stepien Izabela , Bogdal Dariusz
Published: August 2005

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Metalloporphyrin Catalysts for Organic Synthesis
Authors: Simonneaux Gerard , Tagliatesta Pietro
Published: August 2005

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Non‐Covalently Solid‐Phase Bound Catalysts for Organic Synthesis
Authors: Horn J. , Michalek F. , Tzschucke C. C. , Bannwarth W.
Published: August 2005

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Development of Organic Spin Systems with Multi‐Properties
Authors: Nakatsuji Shin'ichi
Published: August 2005

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Biocatalytic Routes Toward Pharmaceutically Important Precursors and Novel Polymeric Systems
Authors: Sharma Sunil K. , Husain Mofazzal , Kumar Rajesh , Samuelson Lynne A. , Kumar Jayant , Watterson Arthur C. , Parmar Virinder S.
Published: August 2005

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Recent Advances in Catalytic Intramolecular C—H Aminations
Authors: Davies Huw M. L. , Long Matthew S.
Published: August 2005

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L‐Ascorbic Acid: Properties and Ways of Modification
Authors: Lavrenov S. N. , Preobrazhenskaya M. N.
Published: August 2005

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Dopamine D3 Receptor Partial Agonists and Antagonists as Potential Drug Abuse Therapeutic Agents
Authors: Newman Amy Hauck , Grundt Peter , Nader Michael A.
Published: August 2005

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Recent Developments of Biaryl Synthesis via Cross‐Coupling Reactions of Areneboronic Acid Derivatives
Authors: Suzuki Akira
Published: August 2005

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Molecular Design, Chemical Synthesis and Biological Activity of Artificial and DNA Photocleaving Carbohydrate‐Intercalator Hybrids
Authors: Toshima Kazunobu
Published: August 2005

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Conformation‐Control and Stereoselective Reactions Using Cation‐π Interactions
Authors: Yamada Shinji
Published: August 2005

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Rhodium‐Catalyzed Intramolecular Hydroacylation of 4‐Alkynals
Authors: Tanaka Ken
Published: August 2005

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Design of Novel Composite Materials by Functional Low Molecular Weight Organogels
Authors: Sugiyasu Kazunori , Fujita Norifumi , Shinkai Seiji
Published: August 2005

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Synthesis, Isomerization and Functions of Cyclophanes Containing Azobenzene Units in the Main Frame
Authors: Tamaoki Nobuyuki
Published: August 2005

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Very Large Container Molecules
Authors: Rissanen Kari
Published: August 2005

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Hypervalent Iodine Chemistry in Synthesis: Scope and New Directions
Authors: Wirth Thomas
Published: August 2005

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Palladium‐Catalyzed Reactions of Alcohols. Part 3. Formation of Ether Linkages
Authors: Muzart Jacques
Published: August 2005

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Solid State Polymerization
Authors: Vouyiouka S. N. , Karakatsani E. K. , Papaspyrides C. D.
Published: August 2005

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High‐Throughput Solid‐Phase Parallel Synthesis of Peptides in 96‐Well Format
Authors: Winkler D. , Morbach G. , Hessenius C. , Ritzke M. , Schmidt J. , Birringer M. , Kreuzer O. J.
Published: August 2005

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Amino Acids: Unnaturally, Naturally! Hydantoinase Process for Manufacturing L‐ and D‐Amino Acids
Authors: May Oliver
Published: August 2005

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Organization of Ferrocenoyl Amino Acids
Authors: Kraatz Heinz‐Bernhard
Published: August 2005

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Total Synthesis of Kainoids by Dearomatizing Anionic Cyclization
Authors: Clayden Jonathan
Published: August 2005

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Chirality Transfer in the Formation of Indole Alkaloids Derived from Secologanin
Authors: Beke Gyula , Karolyhazy Laszlo , Patthy‐Lukats Agnes , Podanyi Benjamin , Szabo Laszlo F.
Published: August 2005

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The Synthesis of rac‐Strychnine via a Cobalt‐Mediated [2 + 2 + 2]Cycloaddition
Authors: Vollhardt K. Peter C. , Eichberg Michael J.
Published: August 2005

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Catalytic Asymmetric Total Synthesis of (‐)‐Strychnine and Fostriecin
Authors: Shibasaki Masakatsu , Kanai Motomu , Ohshima Takashi
Published: August 2005

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Some Refreshing Ideas Related to the Chemistry of (‐)‐Menthol
Authors: Gamez Sophie , Petitjean Anne
Published: August 2005

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The Ring‐Closing Metathesis Approach to Fumagillol
Authors: Eustache Jacques , van de Weghe Pierre
Published: August 2005

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Polarization in Organic Molecular Crystals and Charge‐Transfer Salts
Authors: Soos Zoltan G. , Tsiper Eugene V. , Painelli Anna
Published: August 2005

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Chemistry and Enzymology of Vitamin B12
Authors: Brown Kenneth L.
Published: August 2005

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Mode of Action of Bi‐ and Trinuclear Zinc Hydrolases and Their Synthetic Analogues
Authors: Weston Jennie
Published: August 2005

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Kinetics and Mechanisms of Formation and Reactivity of Non‐Heme Iron Oxygen Intermediates
Authors: Kryatov Sergey V. , Rybak‐Akimova Elena V. , Schindler Siegfried
Published: August 2005

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Reaction Mechanisms of Mononuclear Non‐Heme Iron Oxygenases
Authors: Abu‐Omar Mahdi M. , Loaiza Aristobulo , Hontzeas Nikos
Published: August 2005

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Structure and Chemistry of Cytochrome P450
Authors: Denisov Ilia G. , Makris Thomas M. , Sligar Stephen G. , Schlichting Ilme
Published: August 2005

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Mechanistic Studies on Synthetic Fe—S‐Based Clusters and Their Relevance to the Action of Nitrogenases
Authors: Henderson Richard A.
Published: August 2005

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Biomembrane‐Active Molecular Switches as Tools for Intracellular Drug Delivery
Authors: Bulmus Volga
Published: August 2005

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Effective Productions of Plant Secondary Metabolites Having Antitumor Activity by Plant Cell and Tissue Cultures
Authors: Taniguchi Shoko
Published: August 2005

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The Chemical Recycling of PET in the Framework of Sustainable Development
Authors: Achilias D. S. , Karayannidis G. P.
Published: August 2005

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Theoretical Perspective on the Structure and Mechanism of Cytochrome P450 Enzymes
Authors: Shaik Sason , Kumar Devesh , de Visser Samuel P. , Altun Ahmet , Thiel Walter
Published: August 2005

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Mechanisms of Reductive Nitrosylation in Iron and Copper Models Relevant to Biological Systems.
Authors: Ford Peter C. , Fernandez Bernadette O. , Lim Mark D.
Published: August 2005

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Mechanistic Aspects of C—H Activation by Pt Complexes
Authors: Lersch Martin , Tilset Mats
Published: August 2005

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Theoretical Methods of Potential Use for Studies of Inorganic Reaction Mechanisms
Authors: Ziegler Tom , Autschbach Jochen
Published: August 2005

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The Shape Memory Effect in Polymers
Authors: Beloshenko V. A. , Varyukhin V. N. , Voznyak Yu V.
Published: August 2005

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Cascade Reactions of Unsaturated Xanthates and Related Reactions: Computer‐Assisted Molecular Design and Analysis of Reaction Mechanisms
Authors: Harano Kazunobu
Published: August 2005

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Use of Quantum Chemical Methods to Study Cyclodextrin Chemistry
Authors: Liu Lei , Guo Qing‐Xiang
Published: August 2005

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Mechanism of Electron Transfer in Heme Proteins and Models: The NMR Approach
Authors: Simonneaux Gerard , Bondon Arnaud
Published: August 2005

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Lipid—Protein Interactions Revealed by Two‐Photon Microscopy and Fluorescence Correlation Spectroscopy
Authors: Sanchez Susana A. , Gratton Enrico
Published: August 2005

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Chemical Mapping of Polymer Microstructure Using Soft X‐Ray Spectromicroscopy
Authors: Hitchcock Adam P. , Stoever Harald D. H. , Croll Lisa M. , Childs Ronald F.
Published: August 2005

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Structures and Properties of Spatially Distorted Porphyrins
Authors: Golubchikov O. A. , Pukhovskaya S. G. , Kuvshinova E. M.
Published: August 2005

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Solid State NMR Spectroscopy
Authors: Aliev A. E. , Law R. V.
Published: August 2005

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Structure—Chemical Analysis of Multiple Complexations by Cyclodextrins
Authors: Funasaki Noriaki
Published: August 2005

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Separations with Fluorous Silica Gel and Related Materials
Authors: Curran Dennis P.
Published: August 2005

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Human T helper (Th) cell lineage commitment is not directly linked to the secretion of IFN‐γ or IL‐4: Characterization of Th cells isolated by FACS based on IFN‐γ and IL‐4 secretion
Authors: Cao Wuxiong , Chen Yangde , Alkan Sefik , Subramaniam Arun , Long Fan , Liu Hong , Diao Rong , Delohery Thomas , McCormick Jason , Chen Rong , Ni Donghui , Wright Paul S. , Zhang Xin , Busch Steve , Zilberstein Asher
Published: August 2005

Upon activation in vitro, only a fraction of the bulk human T helper cell cultures secret the hallmark Th1/2 cytokines (IFN‐γ for Th1 and IL‐4 for Th2, respectively). It is uncertain whether these IFN‐γ–/IL‐4– cells are differentiated Th1 or Th2 cells. Here, we have characterized live IFN‐γ+, IL‐4+ and IFN‐γ–/IL‐4– cells isolated from Th cell cultures treated under Th1 or Th2 polarizing conditions by employing affinity matrix capture technology. RNA samples from the sorted cells were analyzed by real time RT‐PCR and microarrays. The double negative cells from either Th1 or Th2 cultures expressed lower levels of Th1/Th2 marker cytokine genes (IFNγ, IL4, and IL5). However, they were comparable with the IFN‐γ+ or IL‐4+ cells in the expression levels of other Th1/Th2 marker genes (GATA3, Tbet, and IL12Rβ2). Most importantly, these double negative cells were already committed in their Th1/Th2 lineages. Gene expression profiling analysis showed that very few previously identified Th1/Th2 marker genes were differentially expressed between the IFN‐γ or IL‐4 producers and the non‐producers, further underscoring the similarity between these two groups.
Reversible Bond Formation and Cleavage of the Oxo Bridge of [Ru2(μ‐O)(dioxolene)2(btpyxa)]3+ [btpyxa = 2,7‐Di‐tert‐butyl‐9,9‐dimethyl‐4,5‐bis(2,2′:6′,2′′‐terpyrid‐4′‐yl)xanthene] Driven by a Three‐Electron Redox Reaction
Authors: Wada Tohru , Tanaka Koji
Published: August 2005

The bis(chlororuthenium) complex [Ru2Cl2(3,6‐tBu2sq)2(btpyxa)](PF6)2 [1](PF6)2 [3,6‐tBu2sq = 3,6‐di‐tert‐butyl‐1,2‐benzosemiquinone; btpyxa = 2,7‐di‐tert‐butyl‐9,9‐dimethyl‐4,5‐bis(2,2′:6′,2′′‐terpyrid‐4′‐yl)xanthene] and the oxo‐bridged diruthenium complex [Ru2(μ‐O)(3,6‐tBu2sq)2(btpyxa)](PF6)3 [2](PF6)3 were synthesized, and the redox behavior of these complexes, which contain a non‐innocent dioxolene ligand, was investigated by electrochemical and electrospectrochemical methods. Dicationic [1]2+ undergoes two successive metal‐centered one‐electron and a simultaneous two‐electron ligand‐based redox reaction at E1/2 = +0.13 and +0.09 and E1/2 = –0.75 V (vs. SCE), respectively, in CH2Cl2. The UV/Vis/NIR spectrum of tricationic [2]3+ shows an intervalence‐transition (IT) band at 1333 nm (ϵ = 1.52 × 104 M–1 cm–1) in a near‐IR region together with two CT bands at 766 (ϵ = 2.21 × 104 M–1 cm–1) and 586 nm (ϵ = 1.13 × 104 M–1 cm–1) in CH2Cl2. The mixed‐valence complex of [2]3+ with an RuIV–O–RuIII core is reversibly oxidized and reduced to the RuIV–RuIV and RuIII–RuIII oxidation states at E1/2 = +0.63 and –0.01 V, respectively, in CH2Cl2. On the other hand, three‐electron reduction of [2](PF6)3 is accompanied by the cleavage of the Ru–O–Ru bond at Ep = +0.02 V to give [{Ru(OMe)(3,5‐tBu2sq)}{Ru(OH2)(3,5‐tBu2sq)}(btpyxa)]+ in MeOH. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Classical 1,2,4‐Triboracyclopentanes and Their Rearrangement into Nonclassical 2‐Boryl‐1,3‐diboracyclobutanes: Intramolecular C–H Bond Activation by a B–B Moiety
Authors: Scheschkewitz David , Amseis Peter , Geiseler Gertraud , Massa Werner , Hofmann Matthias , Berndt Armin
Published: August 2005

1,2,4‐Triboracyclopentanes 1a–c in solution spontaneously transform into their nonclassical isomers 2a–c. These have been characterised by NMR spectroscopy and X‐ray structural analyses. Compounds 2a–c are strongly distorted when compared with the five‐membered ring of 1a, the structure of which was determined for comparison. In addition, the pattern of the substituents at the boron centres in 2a,b is different from that in 1a,b. This can be rationalised on the basis of a rapid topomerisation in 2c as determined by analysis of its temperature dependent 13C NMR spectra. The environment of the boron centres B1 and B3 is exchanged by transforming the two 3c–2e bonds which both involve B1 into a B2–H and a B1–C 2c–2e bond. This leads to the 2‐boryl‐1,3‐diboracyclobutane 4c and formation of corresponding new 3c–2e bonds employing B3 gives the topomer of 2c. The low barrier of this topomerisation reveals that 2a–c may also be regarded as nonclassical isomers of the 2‐boryl‐1,3‐diboracyclobutanes 4a–c. Ab initio computations of models at the MP4SDTQ/6‐311+G**// MP2/6‐311+G** levels support this interpretation. In addition, they show that the transformation of 1u to 2u occurs by an intramolecular C–H bond activation process initiated by the B–B moiety. Derivatives of the type 1 and 2 described here represent the first examples of 1,2‐diboron heterocycles which can be isolated as classical as well as nonclassical isomers. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Comparison of the Magnetic and Optical Properties of Wide‐Gap (II,Mn)VI Nanostructures Confined in Mesoporous Silica
Authors: Brieler Felix J. , Grundmann Petra , Fröba Michael , Chen Limei , Klar Peter J. , Heimbrodt Wolfram , Krug von Nidda Hans‐Albrecht , Kurz Thomas , Loidl Alois
Published: August 2005

Arrays of highly ordered Cd1–xMnxSe, Cd1–xMnxS, and Zn1–xMnxS nanoparticles with x ranging from 0.01 to 0.3 and with lateral dimensions of 3, 6, and 9 nm were synthesised within mesoporous SiO2 host structures of the MCM‐41 and SBA‐15 type. The hexagonal symmetry of these arrays (space group p6m) and the high degree of order were confirmed by X‐ray diffraction and transmission electron microscope studies. Physisorption measurements show the progressive filling of the pores of the SiO2 host structures, while photoluminescence excitation (PLE) and electron paramagnetic resonance (EPR) studies confirm the good crystalline quality of the incorporated (II,Mn)VI guest species. The effects of the reduction of the lateral dimensions on the electronic properties of the diluted magnetic semiconductor were studied by PLE spectroscopy. Due to the quantum confinement of the excitons in the nanostructures an increase of the direct band gap with decreasing particle size is observed. The magnitude of the confinement effects increases with increasing excitonic Bohr radius of the (II,Mn)VI, i.e. it is largest for (Cd,Mn)Se and smallest for (Zn,Mn)S. Moreover, an increased band‐gap bowing with Mn content is observed for the Cd compounds and can be correlated with the modification of the magnetic properties. Surprisingly, no band‐gap bowing with x is observed for the Zn1–xMnxS nanostructures. Analysis of the EPR linewidth and EPR intensity show that macroscopic magnetic properties such as the Curie–Weiss temperature are affected by the reduction of the lateral dimensions. The microscopic coupling between the Mn ions (e.g. the exchange constants Jnn and Jnnn) is not altered to a first approximation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Bottom‐Up Synthesis and Top‐Down Organisation of Semiconductor and Metal Clusters on Surfaces
Authors: Bittner Alexander M. , Wu Xiao C. , Balci Sinan , Knez Mato , Kadri Anan , Kern Klaus
Published: August 2005

Near‐spherical dendrimers can be used as templates for bottom‐up syntheses of semiconductor clusters. Starting from methanolic solutions of Cd2+, sulfide, and poly(amidoamine) dendrimers, CdS clusters precipitate at the dendrimers. A preparation inside the dendrimers is only possible when the protonation of the latter is carefully controlled. The clusters have diameters above about 2 nm and show blue photoluminescence. The patterning and orientation of CdS/dendrimer clusters on flat surfaces are attained by microcontact printing. Depending on the ripening of the CdS/dendrimer suspension, a sub‐micrometer stripe pattern develops inside the micrometer‐scaled patterns; it extends over the complete surface. Rod‐like plant virions with a different type of lateral organisation can be oriented on a flat substrate by applying mechanical forces during immobilisation from suspensions. These virions can also be employed as templates, in this case for creating metal structures by electroless deposition (chemical metal deposition). The structures are wire‐like with diameters of 3–4 nm and are confined inside the central channel of the virions. The early stage of the metallisation process is analysed, and a model that accounts for the selectivity is presented. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Multifunctional Dithiocarbamates as Ligands Towards the Rational Synthesis of Polymetallic Arrays: An Example Based on a Piperizine‐Derived Dithiocarbamate Ligand
Authors: Wilton‐Ely James D. E. T. , Solanki Dina , Hogarth Graeme
Published: August 2005

The zwitterionic piperazine‐derived dithiocarbamate complex [(dppm)2Ru(S2CNC4H8NCS2)] has been prepared and utilised in the synthesis of multimetallic arrays incorporating a wide range of transition metal centres. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Electrical Resistivity of Epitaxial Au Films Surface‐Modulated by Arrays of Pt Nanoparticles
Authors: Kästle Gerd , Schröder Alexander , Boyen Hans‐Gerd , Plettl Alfred , Ziemann Paul , Mayer Oliver , Spatz Joachim , Möller Martin , Büttner Michael , Oelhafen Peter
Published: August 2005

Arrays of Pt nanoparticles with a high degree of hexagonal short‐range order are deposited by means of self‐assembly of diblock‐copolymers on top of high quality epitaxial Au films and their influence on the electrical properties is studied. The temperature‐dependent resistivity of the nanomodulated Au films is surprisingly well described by the classical size effect model of Fuchs–Sondheimer, which is based on a mixture of diffuse and specular surface scattering events. Especially, no specific influence of the interparticle distance of the nanoparticle array could be detected even though it was of the same magnitude as the elastic mean free path of the scattering electrons. Rather, the nanomodulation acts as randomly distributed scatterers leading to an overall decreased probability for specular reflections of conduction electrons at the sample surface. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Optical imaging of pancreatic beta cells in living mice expressing a mouse insulin I promoter‐firefly luciferase transgene
Authors: Park Soo‐Young , Wang Xiaoyu , Chen Zhongyi , Powers Alvin C. , Magnuson Mark A. , Head W. Steven , Piston David W. , Bell Graeme I.
Published: August 2005

We generated transgenic mice expressing firefly (Photinus pyralis) luciferase (luc) under the control of the mouse insulin I promoter (MIP). The mice have normal glucose tolerance and pancreatic islet architecture. The luciferase‐expressing beta cells can be readily visualized in living mice using whole‐body bioluminescent imaging. The MIP‐luc transgenic mice may be useful for monitoring changes in beta cell function or mass in living animals with normal or altered metabolic states. genesis 43:80–86, 2005. © 2005 Wiley‐Liss, Inc.
Method for multimodal analysis of independent source differences in schizophrenia: Combining gray matter structural and auditory oddball functional data
Authors: Calhoun V.D. , Adali T. , Giuliani N.R. , Pekar J.J. , Kiehl K.A. , Pearlson G.D.
Published: August 2005

The acquisition of both structural MRI (sMRI) and functional MRI (fMRI) data for a given study is a very common practice. However, these data are typically examined in separate analyses, rather than in a combined model. We propose a novel methodology to perform independent component analysis across image modalities, specifically, gray matter images and fMRI activation images as well as a joint histogram visualization technique. Joint independent component analysis (jICA) is used to decompose a matrix with a given row consisting of an fMRI activation image resulting from auditory oddball target stimuli and an sMRI gray matter segmentation image, collected from the same individual. We analyzed data collected on a group of schizophrenia patients and healthy controls using the jICA approach. Spatially independent joint‐components are estimated and resulting components were further analyzed only if they showed a significant difference between patients and controls. The main finding was that group differences in bilateral parietal and frontal as well as posterior temporal regions in gray matter were associated with bilateral temporal regions activated by the auditory oddball target stimuli. A finding of less patient gray matter and less hemodynamic activity for target detection in these bilateral anterior temporal lobe regions was consistent with previous work. An unexpected corollary to this finding was that, in the regions showing the largest group differences, gray matter concentrations were larger in patients vs. controls, suggesting that more gray matter may be related to less functional connectivity in the auditory oddball fMRI task. Hum Brain Mapp, 2005. © 2005 Wiley‐Liss, Inc.