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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53条记录   Totally Selective Synthesis of Enantiopure (3S,5S)- and (3R,5R)-4-Amino-3,5-dihydroxypiperidines from Aminodiepoxides Derived from Serine. [作者：Concellon, Jose M.;Rivero, Ignacio A.;Rodriguez-Solla, Humberto;Concellon, Carmen;Espana, Estibaly;Garcia-Granda, Santiago;Diaz, M. R.;,期刊：Journal of Organic Chemistry, 页码：6048-6051 , 文章类型： 研究论文，,卷期：2008年73-15] The transformation of enantiopure (2R,4R)- and (2S,4S)-N,N-dibenzyl-1,2:4,5-diepoxypentan-3-amine into the corresponding enantiopure (3S,5S)- and (3R,5R)-3,5-dihydroxy-3-aminopiperidines is described. The opening of the... Reactive Extraction of Enantiomers of 1,2-Amino Alcohols via Stereoselective Thermodynamic and Kinetic Processes. [作者：Tang, Lijun;Choi, Sujung;Nandhakumar, Raju;Park, Hyunjung;Chung, Hyein;Chin, Jik;Kim, Kwan Mook;,期刊：Journal of Organic Chemistry, 页码：5996-5999 , 文章类型： 研究论文，,卷期：2008年73-15] (R)-2-Amino-2-phenylethanol was obtained with an enantiomeric excess of >95% from 2 equiv. of racemic alc. by reactive extn. processes using a chiral receptor (S)-I as an enantioselective extractant. One resoln. cycle i... Quantum Amplified Isomerization in Polymers Based on Triplet Chain Reactions. [作者：Ferrar, Lorraine;Mis, Mark;Dinnocenzo, Joseph P.;Farid, Samir;Merkel, Paul B.;Robello, Douglas R.;,期刊：Journal of Organic Chemistry, 页码：5683-5692 , 文章类型： 研究论文，,卷期：2008年73-15] Photoinitiated triplet quantum amplified isomerizations (QAI) of substituted Dewar benzene derivs. in polymeric media are reported. The quantum efficiencies and the ultimate extents of reactant-to-product conversions inc... Experimental and Computational Studies of Selective Recognition of Hg2+ by Amide Linked Lower Rim 1,3-Dibenzimidazole Derivative of Calix[4]arene: Species Characterization in Solution and that in the Isolated Complex, Including the Delineation of the Nano [作者：Joseph, Roymon;Ramanujam, Balaji;Acharya, Amitabha;Khutia, Anupam;Rao, Chebrolu P.;,期刊：Journal of Organic Chemistry, 页码：5745-5758 , 文章类型： 研究论文，,卷期：2008年73-15] 69, 73, 75, 77 Amide linked lower rim 1,3-dibenzimidazole deriv. of calix[4]arene, L has been shown to be sensitive and selective to Hg2+ in aq. acetonitrile soln. based on fluorescence spectroscopy, and the stoichiometr... Supramolecular Enantiodifferentiating Photocyclodimerization of 2-Anthracenecarboxylate Mediated by Capped g-Cyclodextrins: Critical Control of Enantioselectivity by Cap Rigidity. [作者：Yang, Cheng;Mori, Tadashi;Inoue, Yoshihisa;,期刊：Journal of Organic Chemistry, 页码：5786-5794 , 文章类型： 研究论文，,卷期：2008年73-15] A series of g-cyclodextrins (CDs) modified with capping and non-capping arom. group(s) were synthesized to mediate the enantiodifferentiating [4 + 4] photocyclodimerization of 2-anthracenecarboxylic acid (AC). The compl... New Opportunities with the Duff Reaction. [作者：Masurier, Nicolas;Moreau, Emmanuel;Lartigue, Claire;Gaumet, Vincent;Chezal, Jean-Michel;Heitz, Annie;Teulade, Jean-Claude;Chavignon, Olivier;,期刊：Journal of Organic Chemistry, 页码：5989-5992 , 文章类型： 研究论文，,卷期：2008年73-15] The Duff reaction (HMTA, AcOH or TFA) was studied on substituted [6 + 5] heterocyclic compds, e.g. I (R = H). This reaction provides a useful route to aldehydes, e.g. I (R = CHO), for compds. bearing sensitive amide fun... Synthesis of Quinolines from 3-Formylchromone. [作者：Plaskon, Andrey S.;Ryabukhin, Sergey V.;Volochnyuk, Dmitriy M.;Gavrilenko, Konstantin S.;Shivanyuk, Alexander N.;Tolmachev, Andrey A.;,期刊：Journal of Organic Chemistry, 页码：6010-6013 , 文章类型： 研究论文，,卷期：2008年73-15] A facile and versatile procedure for the synthesis of 3-(2-hydroxybenzoyl)quinolines and 7H-chromeno[3,2-c]quinolin-7-ones, e.g., I, was elaborated on the basis of TMSCl-mediated recyclization of 3-formylchromone with va... Stereoselective Synthesis of 3-Oxygenated-cis-dialkyl-2,5-substituted Tetrahydrofurans from Cyclohexadienediols. [作者：Brovetto, Margarita;Seoane, Gustavo;,期刊：Journal of Organic Chemistry, 页码：5776-5785 , 文章类型： 研究论文，,卷期：2008年73-15] (Heterocyclic Compounds (One Hetero Atom)) Section The 3-oxygenated-cis-dialkyl-2,5-substituted THF system, present in several natural products, was prepd. with good selectivity by acidic cyclization of 5-alkene-1,2,4-tr... Applications of Enantioselective Carbolithiation of Ortho-Substituted b-Methylstyrenes. [作者：Hogan, Anne-Marie L.;Tricotet, Thomas;Meek, Alastair;Khokhar, Shaista S.;O'Shea, Donal F.;,期刊：Journal of Organic Chemistry, 页码：6041-6044 , 文章类型： 研究论文，,卷期：2008年73-15] (Heterocyclic Compounds (One Hetero Atom)) Section The enantioselective carbolithiation of ortho-substituted (E)-b-methylstyrenes provides access to chiral lithiated intermediates with broad synthetic potential. Specifi... Photochemical Cycloaddition of Mono-, 1,1-, and 1,2-Disubstituted Olefins to a Chiral 2(5H)-Furanone. Diastereoselective Synthesis of (+)-Lineatin. [作者：Racamonde, Marta;Alibes, Ramon;Figueredo, Marta;Font, Josep;de March, Pedro;,期刊：Journal of Organic Chemistry, 页码：5944-5952 , 文章类型： 研究论文，,卷期：2008年73-15] The photochem. [2+2] cycloaddn. of (S)-4-methyl-5-O-pivaloyloxymethyl-2(5H)-furanone (I) to vinyl acetate, vinyl pivalate, tert-Bu vinyl ether, 1,1-diethoxyethylene, and (Z)- and (E)-1,2-dichloroethylene has been studied... Rearrangement of N,N-Di-tert-butoxycarbonylpyridin-4-amines and Formation of Polyfunctional Pyridines. [作者：Liu, Yahua;Ding, Qiang;Wu, Xu;,期刊：Journal of Organic Chemistry, 页码：6025-6028 , 文章类型： 研究论文，,卷期：2008年73-15] N,N-Di-tert-butoxycarbonylpyridin-4-amines I (R1 = R2 = Cl; R1 = Cl, Br, tert-Bu, R2 = H) were found to be rearranged to tert-Bu 4-(tert-butoxycarbonylamino)nicotinates II by treatment with LDA in THF. Synthetic Studies on Ezomycins: Stereoselective Route to a Thymine Octosyl Nucleoside Derivative. [作者：Khalaf, Juhienah K.;VanderVelde, David G.;Datta, Apurba;,期刊：Journal of Organic Chemistry, 页码：5977-5984 , 文章类型： 研究论文，,卷期：2008年73-15] belonging to the complex peptidyl nucleoside family of antibiotics. Employing D-serine as a chiral platform, a novel synthetic route to the bicyclic octosyl nucleoside core I of the ezomycins is reported. A key step in ... Zinc-Catalyzed Cycloisomerizations. Synthesis of Substituted Furans and Furopyrimidine Nucleosides. [作者：Sniady, Adam;Durham, Audrey;Morreale, Marco S.;Marcinek, Andrzej;Szafert, Slawomir;Lis, Tadeusz;Brzezinska, Krystyna R.;Iwasaki, Takanori;Ohshima, Takashi;Mashima, Kazushi;Dembinski, Roman;,期刊：Journal of Organic Chemistry, 页码：5881-5889 , 文章类型： 研究论文，,卷期：2008年73-15] 5-Endo-dig cycloisomerization of 1,4- and 1,2,4- mostly aryl-substituted but-3-yn-1-ones in the presence of a catalytic amt. of zinc chloride etherate (10 mol %) in dichloromethane at room temp. gave 2,5-di- and 2,3,5-tr... Total Synthesis of (-)-Dactylolide and Formal Synthesis of (-)-Zampanolide via Target Oriented b-C-Glycoside Formation. [作者：Ding, Fei;Jennings, Michael P.;,期刊：Journal of Organic Chemistry, 页码：5965-5976 , 文章类型： 研究论文，,卷期：2008年73-15] The total synthesis of (-)-dactylolide and formal synthesis of (-)-zampanolide via target oriented b-C-glycoside formation is described. The two key reactions involved a stereoselective redn. of the appropriate oxocarbe... Calculated Chemical Shifts as a Fine Tool of Conformational Analysis: An Unambiguous Solution for Haouamine Alkaloids. [作者：Belostotskii, Anatoly M.;,期刊：Journal of Organic Chemistry, 页码：5723-5731 , 文章类型： 研究论文，,卷期：2008年73-15] shifts (CCS) deals with a real conformational problem of a large biomol. This new methodol. is applied to haouamine A (I), which is much more stereodynamically puzzled than the small models used to validate previous CCS... [1-(Phenylseleno)alkyl]stannanes-Mixed Selenium/Tin Analogs of Acetals: Preparation from a-Hydroxystannanes and Use for Generating Selenium-Stabilized Carbanions. [作者：Fernandopulle, Shimal C.;Clive, Derrick L. J.;Yu, Maolin;,期刊：Journal of Organic Chemistry, 页码：6018-6021 , 文章类型： 研究论文，,卷期：2008年73-15] Selenium-stabilized carbanions are available by a route that does not involve acid-catalyzed formation of selenoacetals. Aldehydes are converted first into a-hydroxystannanes and then into a-(phenylseleno)stannanes. Tr...