个性化文献订阅>文章检索

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79条记录   Three-Dimensional Structural Control of Diastereomeric Leu-Leu-Aib-Leu-Leu-Aib Sequences in the Solid State [作者：DEMIZU YOSUKE; DOI MITSUNOBU; SATO YUKIKO; TANAKA MASAKAZU; OKUDA HARUHIRO; KURIHARA MASAAKI,期刊：Journal of Organic Chemistry, 页码：5234-5239 , 文章类型： Article，,卷期：2010年75-15] Three diastereomeric -Leu-Leu-Aib-Leu-Leu-Aib- peptides composed of the same numbers of L-Leu, D-Leu, and Aib residues were synthesized: Boc-L-Leu-L-Leu-Aib-D-Leu-D-Leu-Aib-OMe (1), Boc-L-Leu-D-Leu-Aib-L-Leu-D-Leu-Aib-OM... Friedel-Crafts Arylation Reactions of N-Sulfonyl Aldimines or Sulfonamidesulfones with Electron-Rich Arenes Catalyzed by FeCl3 center dot 6H(2)O: Synthesis of Triarylmethanes and Bis-heteroarylarylmethanes [作者：THIRUPATHI PONNABOINA; KIM SUNG SOO,期刊：Journal of Organic Chemistry, 页码：5240-5249 , 文章类型： Article，,卷期：2010年75-15] The FeCl3 center dot 6H(2)O-catalyzed Friedel-Crafts arylation reactions of N-sulfonyl aldimines or sulfonamidesulfones with electron-rich arenes and heteroarenes, which lead to the formation of triarylmethanes and bis-h... Nucleophilic Reactivities of Imide and Amide Anions [作者：BREUGST MARTIN; TOKUYASU TAKAHIRO; MAYR HERBERT,期刊：Journal of Organic Chemistry, 页码：5250-5258 , 文章类型： Article，,卷期：2010年75-15] The kinetics of the reactions of amide and imide anions 2a-o with benzhydrylium ions 1a-i and structurally related quinone methides 1j-q have been studied by UV-vis spectroscopy in DMSO and acetonitrile solution. The sec... Palladium-Catalyzed Decarboxylative Coupling of Alkynyl Carboxylic Acids with Benzyl Halides or Aryl Halides [作者：ZHANG WENWU; ZHANG XINGGUO; LI JINHENG,期刊：Journal of Organic Chemistry, 页码：5259-5264 , 文章类型： Article，,卷期：2010年75-15] The synthesis of internal benzyl alkynes and 1,2-diarylalkynes has been developed via palladium-catalyzed decarboxylative coupling reactions of alkynyl carboxylic acids with benzyl chlorides or aryl halides. In the prese... Asymmetric Synthesis of Chiral Primary Amines by Transfer Hydrogenation of N-(tert-Butanesulfinyl)ketimines [作者：GUIJARRO DAVID; PABLO OSCAR; YUS MIGUEL,期刊：Journal of Organic Chemistry, 页码：5265-5270 , 文章类型： Article，,卷期：2010年75-15] The diastereoselective reduction of (R)-N-(tert-butanesulfinyl)ketimines by a ruthenium-catalyzed asymmetric transfer hydrogenation process in isopropyl alcohol, followed by desulfinylation of the nitrogen atom, is an ex... Short Access to 6-Substituted Pyrimidine Derivatives by the S(RN)1 Mechanism. Synthesis of 6-Substituted Uracils through a One-Pot Procedure [作者：BARDAGI JAVIER I; ROSSI ROBERTO A,期刊：Journal of Organic Chemistry, 页码：5271-5277 , 文章类型： Article，,卷期：2010年75-15] The synthesis of 6-substituted 2,4-dimethoxypyrimidines with different nucleophiles was accomplished with good to excellent yields (50-95%) through S(RN)1 reactions, starting from commercially available 6-chloro-2,4-dime... An Investigation of Wall Effects in Microwave-Assisted Ring-Closing Metathesis and Cyclotrimerization Reactions [作者：DALLINGER DORIS; IRFAN MUHAMMED; SULJANOVIC AMRA; KAPPE C OLIVER,期刊：Journal of Organic Chemistry, 页码：5278-5288 , 文章类型： Article，,卷期：2010年75-15] Challenging Ru-catalyzed ring-closing metathesis transformations leading to eight-membered-ring systems and Ni- or Co-catalyzed [2+2+2] cyclotrimerizations were evaluated at elevated temperatures applying microwave diele... One-Pot Synthesis of Aminoenone via Direct Reaction of the Chloroalkyl Enone with NaN3: Rapid Access to Polycyclic Alkaloids [作者：ZHAO YUMING; GU PEIMING; TU YONGQIANG; ZHANG HAIJUN; ZHANG QINGWEI; FAN CHUNAN,期刊：Journal of Organic Chemistry, 页码：5289-5295 , 文章类型： Article，,卷期：2010年75-15] A new one-pot procedure for the preparation of aminoenone from chloroalkyl enone and sodium azide was demonstrated. The structure of the presumed triazoline intermediate in this process was confirmed by X-ray analysis fo... Characterization of the 4-(Benzothiazol-2-yl)phenylnitrenium Ion from a Putative Metabolite of a Model Antitumor Drug [作者：CHAKRABORTY MRINAL; JIN KYOUNG JOO; GLOVER STEPHEN A; NOVAK MICHAEL,期刊：Journal of Organic Chemistry, 页码：5296-5304 , 文章类型： Article，,卷期：2010年75-15] The 4-(benzothiazol-2-yl)phenylnitrenium ion 11 is generated from hydrolysis or photolysis of O-acetoxy-N-(4-(benzothiazol-2-yl)phenyl)hydroxylamine 8, a model metabolite of 2-(4-aminophenyl)benzothiazole 1 and its ring-... A Safe and Practical Procedure for Global Deprotection of Oligoribonucleotides [作者：ZEWGE DANIEL; GOSSELIN FRANCIS; SIDLER RICK; DIMICHELE LISA; CVETOVICH RAYMOND J,期刊：Journal of Organic Chemistry, 页码：5305-5307 , 文章类型： Article，,卷期：2010年75-15] We report a practical global deprotection of RNA 2'-O-tert-butyldimethylsilyl (TBS) ethers using commercially available aqueous NH4F. The procedure is applicable to both 96-well plate format and large-scale production of... One-Pot Syntheses of Immunostimulatory Glyeolipids [作者：SCHOMBS MATTHEW; PARK FRANCINE E; DU WENJUN; KULKARNI SUVARN S; GERVAYHAGUE JACQUELYN,期刊：Journal of Organic Chemistry, 页码：4891-4898 , 文章类型： Article，,卷期：2010年75-15] Glycolipids containing alpha-linked galactosyl and glucosyl moieties have been shown to possess unique immunostimulatory activity creating a need for access to diverse and anomerically pure sources of these compounds for... N-Acetyl Side-Chains in Saccharides: NMR J-Coupling Equations Sensitive to CH-NH and NH-CO Bond Conformations in 2-Acetamido-2-deoxy-aldohexopyranosyl Rings [作者：HU XIAOSONG; CARMICHAEL IAN; SERIANNI ANTHONY S,期刊：Journal of Organic Chemistry, 页码：4899-4910 , 文章类型： Article，,卷期：2010年75-15] Eight Karplus relationships have been determined for use in conformational studies of saccharide N-acetyl side-chains in solution by NMR spectroscopy. Density functional theory was used to calculate H-1-H-1, C-13-H-1, an... An Electron-Rich Proazaphosphatrane for Isocyanate Trimerization to Isocyanurates [作者：RADERS STEVEN M; VERKADE JOHN G,期刊：Journal of Organic Chemistry, 页码：5308-5311 , 文章类型： Article，,卷期：2010年75-15] A facile synthesis of the new electron-rich, sterically hindered proazaphosphatrane shown above is described herein. This proazaphosphatrane catalyzes the cyclotrimerization of a wide variety of isocyanates to isocyanura... Asymmetric Synthesis of Sphinganine and Clavaminol H [作者：AITYOUCEF RAMZI; MOREAU XAVIER; GRECK CHRISTINE,期刊：Journal of Organic Chemistry, 页码：5312-5315 , 文章类型： Article，,卷期：2010年75-15] An efficient enantioselective synthesis of sphinganine and clavaminol H is reported. These sphingoid-type bases were obtained from commercially available fatty acids using highly enantioselective Ru-catalyzed hydrogenati... One-Pot Synthesis of Azaindoles via Palladium-Catalyzed alpha-Heteroarylation of Ketone Enolates [作者：SPERGEL STEVEN H; OKORO DANIELLE R; PITTS WILLIAM,期刊：Journal of Organic Chemistry, 页码：5316-5319 , 文章类型： Article，,卷期：2010年75-15] A convenient, one-pot method for the construction of a variety of azaindoles using simple ketones and haloamino-pyridines is described. A Novel, Air-Stable Phosphine Ligand for the Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling Reaction of Chloro Arenes [作者：GHOSH RAJU; ADARSH N N; SARKAR AMITABHA,期刊：Journal of Organic Chemistry, 页码：5320-5322 , 文章类型： Article，,卷期：2010年75-15] A novel, air-stable phosphine ligand, prepared from readily available 2-bromonitrobenzene and vinylmagnesium bromide, combines with Pd(CH3CN)(2)Cl-2 to afford an effective catalyst for Suzuki-Miyaura cross-coupling of ar...