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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共64条记录   Quaternary Ammonium Bromide Functionalized Polyethylene Glycol: A Highly Efficient and Recyclable Catalyst for Selective Synthesis of 5-Aryl-2-oxazolidinones from Carbon Dioxide and Aziridines Under Solvent-Free Conditions. [作者：Du, Ya;Wu, Ying;Liu, An-Hua;He, Liang-Nian;,期刊：Journal of Organic Chemistry, 页码：4709-4712 , 文章类型： 研究论文，,卷期：2008年73-12] A quaternary ammonium bromide covalently bound to polyethylene glycol (PEG, MW = 6000), i.e., PEG6000(NBu3Br)2, was found to be an efficient and recyclable catalyst for the cycloaddn. reaction of aziridines to CO2 under ... Saccharide Recognition-Induced Transformation of Pyridine-Pyridone Alternate Oligomers from Self-Dimer to Helical Complex. [作者：Abe, Hajime;Machiguchi, Hiroshi;Matsumoto, Shinya;Inouye, Masahiko;,期刊：Journal of Organic Chemistry, 页码：4650-4661 , 文章类型： 研究论文，,卷期：2008年73-12] Co-oligomers involving (1H)-4-pyridone and 4-alkoxypyridine rings were studied, and it was found that their supramol. transformation was caused by saccharide recognition. In the co-oligomers, pyridone and pyridine rings... Expedient Synthesis of N-Methyl Tubulysin Analogues with High Cytotoxicity. [作者：Patterson, Andrew W.;Peltier, Hillary M.;Ellman, Jonathan A.;,期刊：Journal of Organic Chemistry, 页码：4362-4369 , 文章类型： 研究论文，,卷期：2008年73-12] (Biomolecules and Their Synthetic Analogs) Section An optimized and highly efficient synthesis of potent, bioactive N-Me tubulysin analogs I and II has been achieved with > 40% overall yields. This synthesis represents a... Direct Ortho-Acetoxylation of Anilides via Palladium-Catalyzed sp2 C-H Bond Oxidative Activation. [作者：Wang, Guan-Wu;Yuan, Ting-Ting;Wu, Xue-Liang;,期刊：Journal of Organic Chemistry, 页码：4717-4720 , 文章类型： 研究论文，,卷期：2008年73-12] Various anilides have been directly ortho-acetoxylated through a Pd(OAc)2-catalyzed C-H bond activation process. The amide group in anilides was found to functionalize as an elegant directing group to convert arom. sp2 ... Synthesis, Structure, and Transannular p-p Interaction of Three- and Four-Layered [3.3]Paracyclophanes. [作者：Shibahara, Masahiko;Watanabe, Motonori;Iwanaga, Tetsuo;Matsumoto, Taisuke;Ideta, Keiko;Shinmyozu, Teruo;,期刊：Journal of Organic Chemistry, 页码：4433-4442 , 文章类型： 研究论文，,卷期：2008年73-12] The synthesis of three- and four-layered [3.3]paracyclophanes ([3.3]PCPs) has been accomplished by utilizing the (p-ethylbenzenesulfonyl)methyl isocyanide (EbsMIC) method. The structures of the three- to four-layered [3... Glycoluril Dimers Bearing Hydrogen Atoms on Their Convex Face and Their Self-Assembly in the Solid State. [作者：Stancl, Marek;Necas, Marek;Taraba, Jan;Sindelar, Vladimir;,期刊：Journal of Organic Chemistry, 页码：4671-4675 , 文章类型： 研究论文，,卷期：2008年73-12] A selective method for the synthesis of 1,6-substituted glycolurils has been developed. The glycolurils have been used for the synthesis of methylene-bridged glycoluril dimers bearing hydrogen atoms on their convex face... Synthesis, Structures, and Properties of Disubstituted Heteroacenes on One Side Containing Both Pyrrole and Thiophene Rings. [作者：Qi, Ting;Qiu, Wenfeng;Liu, Yunqi;Zhang, Hengjun;Gao, Xike;Liu, Ying;Lu, Kun;Du, Chunyan;Yu, Gui;Zhu, Daoben;,期刊：Journal of Organic Chemistry, 页码：4638-4643 , 文章类型： 研究论文，,卷期：2008年73-12] A new series of ladder-type heteroacenes contg. both pyrrole and furan rings, 5,6-disubstituted diindolo[3,2-b:4,5-b']thiophenes (DITs), were effectively synthesized from N-functionalized 3,3'-dibromo-2,2'-biindoles unde... A New Entry to 1,5-Keto Esters and Their 4,4-Dideuterio Derivatives via Methylene Chloride as "Methylene Dianion" Equivalents. [作者：Lin, Kuo-Wei;Chen, Cheng-Yih;Chen, Wei-Fan;Yan, Tu-Hsin;,期刊：Journal of Organic Chemistry, 页码：4759-4761 , 文章类型： 研究论文，,卷期：2008年73-12] This TiCl4-Mg promoted multicomponent coupling of various amides with CH2Cl2 and Me acrylate represents an extremely simple and practical synthesis of 1,5-keto esters. E.g., reaction of 4-((2-phenylethyl)carbonyl)morpho... Synthesis and structure-activity relationship study of isoglobotrihexosylceramide analogs. [Erratum to document cited in CA148:168898]. [作者：Chen, Wenlan;Xia, Chengfeng;Wang, Jinhua;Thapa, Prakash;Li, Yusen;Talukdar, Arindam;Nadas, Janos;Zhang, Wenpeng;Zhou, Dapeng;Wang, Peng George;,期刊：Journal of Organic Chemistry, 页码：4762-4762 , 文章类型： 研究论文，,卷期：2008年73-12] 3-deoxyl analog synthesis and should be added to the author list for this manuscript. Rearrangement of 3-Membered 1,1,2-Trifluorobromonium and Iodonium Ions and Comparison of Trifluorochloronium to Fluorocarbenium Ions. [作者：Shellhamer, Dale F.;Davenport, Kevyn J.;Forberg, Heidi K.;Herrick, Matthew P.;Jones, Rachel N.;Rodriguez, Sean J.;Sanabria, Sunamita;Trager, Nicole N.;Weiss, Ryan J.;Heasley, Victor L.;Boatz, Jerry A.;,期刊：Journal of Organic Chemistry, 页码：4532-4538 , 文章类型： 研究论文，,卷期：2008年73-12] Reactions of chlorine (Cl2) with 4-halo-1,1,2-trifluorobut-1-enes [1 (Cl), 2 (Br), or 3 (I)] give open-ion intermediates A and E that are in equil. The open-chloronium ions rearrange to a five-membered-ring halonium ion ... Iminyl Radicals from a-Azido o-Iodoanilides via 1,5-H Transfer Reactions of Aryl Radicals: New Transformation of a-Azido Acids to Decarboxylated Nitriles. [作者：Bencivenni, Giorgio;Lanza, Tommaso;Leardini, Rino;Minozzi, Matteo;Nanni, Daniele;Spagnolo, Piero;Zanardi, Giuseppe;,期刊：Journal of Organic Chemistry, 页码：4721-4724 , 文章类型： 研究论文，,卷期：2008年73-12] The radical reaction of tributyltin hydride with a-azido-o-iodo-N-methylanilides I (R = H, Me, 1-adamantyl, 4-MeOC6H4, etc.) derived from a-azido acids provides an excellent access to a-(aminocarbonyl)iminyl radicals thr... An Activated Sulfonylating Agent That Undergoes General Base-Catalyzed Hydrolysis by Amines in Preference to Aminolysis. [作者：Tsang, Wing Y.;Ahmed, Naveed;Hemming, Karl;Page, Michael I.;,期刊：Journal of Organic Chemistry, 页码：4504-4512 , 文章类型： 研究论文，,卷期：2008年73-12] Activated sulfonyl derivs., similar to acyl ones, usually undergo aminolysis with amines in water as nucleophilic attack by the amine is preferred to hydrolysis. However, despite being active sulfonyl derivs., four-memb... N,N'-Diarylureas: A New Family of Atropisomers Exhibiting Highly Diastereoselective Reactivity. [作者：Clayden, Jonathan;Turner, Hazel;Helliwell, Madeleine;Moir, Elizabeth;,期刊：Journal of Organic Chemistry, 页码：4415-4423 , 文章类型： 研究论文，,卷期：2008年73-12] 2,6-Disubstituted N-aryl ureas rotate slowly about their Ar-N bonds and can exist as separable atropisomers. They also react remarkably diastereoselectively, with the urea axis controlling new stereogenic centers with h... Structural Diversity of Organic Chemistry. A Scaffold Analysis of the CAS Registry. [作者：Lipkus, Alan H.;Yuan, Qiong;Lucas, Karen A.;Funk, Susan A.;Bartelt, William F., III;Schenck, Roger J.;Trippe, Anthony J.;,期刊：Journal of Organic Chemistry, 页码：4443-4451 , 文章类型： 研究论文，,卷期：2008年73-12] The anal. of chem. diversity has become a topic of considerable interest in recent years. This interest has been stimulated by the challenge of discovering novel small-mol. pharmaceuticals. The development of technolog... Methimazole-Based Ionic Liquids. [作者：Siriwardana, Amal I.;Crossley, Ian R.;Torriero, Angel A. J.;Burgar, Iko M.;Dunlop, Noel F.;Bond, Alan M.;Deacon, Glen B.;MacFarlane, Douglas R.;,期刊：Journal of Organic Chemistry, 页码：4676-4679 , 文章类型： 研究论文，,卷期：2008年73-12] (Heterocyclic Compounds (More Than One Hetero Atom)) Section The alkylation reaction of methimazole (2-mercapto-1-methylimidazole) with iodoethane and 1-chlorobutane produced the corresponding S-alkylmethimazole halides ... Rate Constants and Arrhenius Functions for Ring Opening of a Cyclobutylcarbinyl Radical Clock and for Hydrogen Atom Transfer From the Et3B-MeOH Complex. [作者：Jin, Jing;Newcomb, Martin;,期刊：Journal of Organic Chemistry, 页码：4740-4742 , 文章类型： 研究论文，,卷期：2008年73-12] Kinetics of ring opening of the 1-cyclobutyldodecyl radical (1) were studied, and an Arrhenius function over the temp. range -20 to 47 癈 was detd. The radical clock reaction has kinetics described by log k = 13.2 - 13.5...