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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56条记录   Synthetic Oligosaccharides as Tools to Demonstrate Cross-Reactivity between Polysaccharide Antigens [作者：POZSGAY VINCE; KUBLERKIELB JOANNA; COXON BRUCE; SANTACROCE PAUL; ROBBINS JOHN B; SCHNEERSON RACHEL,期刊：Journal of Organic Chemistry, 页码：5922-5941 , 文章类型： Article，,卷期：2012年77-14] Escherichia coil O148 is a nonencapsulated enterotoxigenic (ETEC) Gram negative bacterium that can cause diarrhea, hemorrhagic colt:is, and hemolytic uremic syndrome in humans. The surface-exposed O-specific polysacchari... A Combined DFT and NMR Investigation of the Zinc Organometallic Intermediate Proposed in the Syn-Selective Tandem Chain Extension-Aldol Reaction of beta-Keto Esters [作者：AIKEN KARELLE S; EGER WILHELM A; WILLIAMS CRAIG M; SPENCER CARLEY M; ZERCHER CHARLES K,期刊：Journal of Organic Chemistry, 页码：5942-5955 , 文章类型： Article，,卷期：2012年77-14] The tandem chain extension-aldol (TCA) reaction of beta-keto esters provides an alpha-substituted gamma-keto ester with an average syn:anti selectivity of 10:1. It is proposed that the reaction proceeds via a carbon-zinc... Comparison of Arylboron-Based Nucleophiles in Ni-Catalyzed Suzuki-Miyaura Cross-Coupling with Aryl Mesylates and Sulfamates [作者：ZHANG NA; HOFFMAN DAVID J; GUTSCHE NICHOLAS; GUPTA JAYESH; PERCEC VIRGIL,期刊：Journal of Organic Chemistry, 页码：5956-5964 , 文章类型： Article，,卷期：2012年77-14] The efficiency of arylboron-based nucleophiles, boronic acid, potassium trifluoroborate, neopentylglycolboronate, and pinacol boronate in nickel-catalyzed Suzuki-Miyaura cross-coupling reactions with the two C-O electrop... Noncovalent Control of Absorption and Fluorescence Spectra [作者：LANGHALS HEINZ; DIETL CHRISTIAN; ZIMPEL ANDREAS; MAYER PETER,期刊：Journal of Organic Chemistry, 页码：5965-5970 , 文章类型： Article，,卷期：2012年77-14] Perylene dyes with N-tert-alkyl substituents were prepared in which noncovalent interactions of the crowded substituent cause a variation of the geometry the core and induce hypsochromic shifts in absorption and fluoresc... Substituent-Induced Switch of the Role of Charge-Transfer Complexes in the Diels-Alder Reactions of o-Chloranil and Styrenes [作者：ROSOKHA SERGIY V; KOROTCHENKO VASILIY; STERN CHARLOTTE L; ZAITSEV VLADIMIR; RITZERT JEREMY T,期刊：Journal of Organic Chemistry, 页码：5971-5981 , 文章类型： Article，,卷期：2012年77-14] Addition of p-substituted styrenes, XSty (X = H, Me, MeO, or Cl) to the solutions of o-chloranil, oCA, in dichloromethane resulted in the transient formation of the charge-transfer complexes, [XSty, oCA], followed by the... Synthesis of 1-Alkyl-2-(trifluoromethyl)azetidines and Their Regiospecific Ring Opening toward Diverse alpha-(Trifluoromethyl)Amines via Intermediate Azetidinium Salts [作者：KENIS SARA; DHOOGHE MATTHIAS; VERNIEST GUIDO; TUYET ANH DANG THI; CHINH PHAM THE; TUYEN VAN NGUYEN; DE KIMPE NORBERT,期刊：Journal of Organic Chemistry, 页码：5982-5992 , 文章类型： Article，,卷期：2012年77-14] A convenient approach toward nonactivated 1-alkyl-2-(trifluoromethyl)azetidines as a new class of constrained azaheterocycles was developed staffing from ethyl 4,4,4-trifluoroacetoacetate via imination, hydride reduction... Stereoselective Double Lewis Acid/Organo-Catalyzed Dimerization of Donor-Acceptor Cyclopropanes into Substituted 2-Oxabicyclo[3.3.0]octanes [作者：NOVIKOV ROMAN A; TIMOFEEV VLADIMIR P; TOMILOV YURY V,期刊：Journal of Organic Chemistry, 页码：5993-6006 , 文章类型： Article，,卷期：2012年77-14] A new approach for the dimerization of donor acceptor cyclopropanes (2-arylcyclopropane-1,1-dicarboxylates) under double-catalysis conditions by treatment with 20 mol % of GaCl3 and dimethyl 3,5-dimethyl-1-pyrazoline-3,5... Chichibabin-Type Condensation of Cyclic Ketones with 3-R-1,2,4-triazin-5(4H)-ones [作者：EGOROV ILYA N; TSEITLER TATYANA A; KOVALEV IGOR S; SLEPUKHIN PAVEL A; RUSINOV VLADIMIR L; CHUPAKHIN OLEG N,期刊：Journal of Organic Chemistry, 页码：6007-6013 , 文章类型： Article，,卷期：2012年77-14] Reactions between substituted 1,2,4-triazines and ketones were investigated. General procedures for one-pot synthesis of hydrogenated derivatives of such polycyclic systems as benzo[c][1,2,4]triazino[1,6-a][2]azecine, [1... On the Organocatalytic Activity of N-Heterocyclic Carbenes: Role of Sulfur in Thiamine [作者：HOLLOCZKI OLDAMUR; KELEMEN ZSOLT; NYULASZI LASZLO,期刊：Journal of Organic Chemistry, 页码：6014-6022 , 文章类型： Article，,卷期：2012年77-14] The reaction energy profiles of the benzoin condensation from three aldehydes catalyzed by imidazol-ylidene, triazol-3-ylidene, and thiazol-2-ylidene have been investigated computationally. The barriers for all steps of ... Rearrangement of N-tert-Butanesulfinyl alpha-Halo Imines with Alkoxides to N-tert-Butanesulfinyl 2-Amino Acetals as Precursors of N-Protected and N-Unprotected alpha-Amino Carbonyl Compounds [作者：COLPAERT FILIP; MANGELINCKX SVEN; DENOLF BRAM; DE KIMPE NORBERT,期刊：Journal of Organic Chemistry, 页码：6023-6032 , 文章类型： Article，,卷期：2012年77-14] Reaction of N-tert-butanesulfinyl alpha-halo imines with alkoxides afforded new N-tert-butanesulfinyl 2-amino acetals in good to excellent yield. These N-tert-butanesulfinyl 2-amino acetals are convenient precursors for ... Conformational Studies of Phe-Rich Foldamers by VCD Spectroscopy and ab Initio Calculations [作者：LONGHI GIOVANNA; ABBATE SERGIO; LEBON FRANCE; CASTELLUCCI NICOLA; SABATINO PIERA; TOMASINI CLAUDIA,期刊：Journal of Organic Chemistry, 页码：6033-6042 , 文章类型： Article，,卷期：2012年77-14] Employing VCD spectroscopy, we demonstrate that the structural behavior of the oligomers Boc-(L-Phe-L-Oxd)(n)-OBn is similar from n = 2 to n = 6; ab initio calculations for the n = 1 case provide physical insight into th... Synthesis of Three Asymmetric N-Confused Tetraarylporphyrins [作者：ACHARYA RAJENDRA; PAUDEL LILADHAR; JOSEPH JOJO; MCCARTHY CLAIRE E; DUDIPALA VENKAT R; MODARELLI JODY M; MODARELLI DAVID A,期刊：Journal of Organic Chemistry, 页码：6043-6050 , 文章类型： Article，,卷期：2012年77-14] Two monosubstituted and one tetrasubstituted N-confused porphyrins (1-3) were prepared in ca. 3-5% yields using a [2 + 2] synthesis. The monosubstituted porphyrins have carbomethoxy (1) or nitro (2) substituents on one o... Design and Synthesis of Potential Mechanism-Based Inhibitors of the Aminotransferase BioA Involved in Biotin Biosynthesis [作者：SHI CE; ALDRICH COURTNEY C,期刊：Journal of Organic Chemistry, 页码：6051-6058 , 文章类型： Article，,卷期：2012年77-14] BioA, a pyridoxal 5'-phosphate (PLP) dependent aminotransferase, catalyzes the second step of biotin biosynthesis, converting 7-keto-8-aminopelargonic acid (KAPA) into 7,8-diaminopelargonic acid (DAPA). Amiclenomycin (AC... Application of the Multi-standard Methodology for Calculating H-1 NMR Chemical Shifts [作者：SAROTTI ARIEL M; PELLEGRINET SILVINA C,期刊：Journal of Organic Chemistry, 页码：6059-6065 , 文章类型： Article，,卷期：2012年77-14] Gauge including atomic orbitals (GIAO) H-1 NMR chemical shift calculations have been performed for 66 organic compounds at 72 different levels of theory using the multi-standard approach (MSTD) previously developed for C... Mandelalides A-D, Cytotoxic Macrolides from a New Lissoclinum Species of South African Tunicate [作者：SIKORSKA JUSTYNA; HAU ANDREW M; ANKLIN CLEMENS; PARKERNANCE SHIRLEY; DAVIESCOLEMAN MICHAEL T; ISHMAEL JANE E; MCPHAIL KERRY L,期刊：Journal of Organic Chemistry, 页码：6066-6075 , 文章类型： Article，,卷期：2012年77-14] Mandelalides A-D are variously glycosylated, unusual polyketide macrolides isolated from a new species of Lissoclinum ascidian collected from South Africa, Algoa Bay near Port Elizabeth and the surrounding Nelson Mandela... Platinum(II)-Catalyzed Cyclization Sequence of Aryl Alkynes via C(sp(3))-H Activation: A DFT Study [作者：LI ZHIFENG; FAN YANZHONG; DEYONKER NATHAN J; ZHANG XITING; SU CHENGYONG; XU HUIYING; XU XIANYAN; ZHAO CUNYUAN,期刊：Journal of Organic Chemistry, 页码：6076-6086 , 文章类型： Article，,卷期：2012年77-14] The mechanism and intermediates of hydroalkylation of aryl alkynes via C(sp(3))-H activation through a platinum(II)-centered catalyst are investigated with density functional theory at the B3LYP/[6-31G(d) for H, O, C; 6-...