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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105条记录   Peptide Chemistry [作者：LUBELL WILLIAM D,期刊：Organic Letters, 页码：4297-4302 , 文章类型： Editorial Material，,卷期：2012年14-17] Total Synthesis of (+)-Sch 725680: Inhibitor of Mammalian A-, B-, and Y-Family DNA Polymerases [作者：TAKEUCHI TOSHIFUMI; MIZUSHINA YOSHIYUKI; TAKAICHI SATOSHI; INOUE NATSUKI; KURAMOCHI KOUJI; SHIMURA SATOMI; MYOBATAKE YUSUKE; KATAYAMA YURI; TAKEMOTO KENJI; ENDO SHOGO; KAMISUKI SHINJI; SUGAWARA FUMIO,期刊：Organic Letters, 页码：4303-4305 , 文章类型： Article，,卷期：2012年14-17] The total synthesis of (+)-Sch 725680, a member of the hydrogenated azaphilone family, has been accomplished. The synthesis confirmed the absolute configuration and biological activities of the natural product. A key rea... Diversity Oriented Synthesis of Pyran Based Polyfunctional Stereogenic Macrocyles and Their Conformational Studies [作者：AJAY ARYA; SHARMA SHRIKANT; GUPT MUNNA PRASAD; BAJPAI VIKAS; HAMIDULLAH; KUMAR BRIJESH; KAUSHIK MAHABIR PRASAD; KONWAR RITURAJ; AMPAPATHI RAVI SANKAR; TRIPATHI RAMA PATI,期刊：Organic Letters, 页码：4306-4309 , 文章类型： Article，,卷期：2012年14-17] A new approach to synthesize a homologous series of 14-, 15-, and 16-membered drug-like, macrocyclic glycoconjugates involving TBAHS promoted azide-propenone intramolecular cycloaddition in designed C-glycopyranosyl bute... Highly Efficient, Regioselective, and Stereospecific Oxidation of Aliphatic C-H Groups with H2O2, Catalyzed by Aminopyridine Manganese Complexes [作者：OTTENBACHER ROMAN V; SAMSONENKO DENIS G; TALSI EVGENII P; BRYLIAKOV KONSTANTIN P,期刊：Organic Letters, 页码：4310-4313 , 文章类型： Article，,卷期：2012年14-17] Aminopyridine manganese complexes [LMnII(OTf)(2)] having a similar coordination topology catalyze the oxidation of unactivated aliphatic C-H groups with H2O2, demonstrating excellent efficiency (up to TON = 970), site se... Pyridinium-Based Fluororeceptors As Practical Chemosensors for Hydrogen Pyrophosphate (HP2O73-) in Semiaqueous and Aqueous Environments [作者：GHOSH KUMARESH; SARKAR AVIK RANJAN; SAMADDER ASMITA; KHUDABUKHSH ANISUR RAHMAN,期刊：Organic Letters, 页码：4314-4317 , 文章类型： Article，,卷期：2012年14-17] The pyridinium-based fluororeceptor 1 and the sensor bead 2 recognize hydrogen pyrophosphate effectively through the 'Indicator Displacement Assay' (IDA) technique over a series of other anions in aq CH3CN (CH3CN/H2O = 4... Kumada-Tamao-Corriu Coupling of Heteroaromatic Chlorides and Aryl Ethers Catalyzed by (IPr)Ni(allyl)Cl [作者：JOSE IGLESIAS MARIA; PRIETO AUXILIADORA; CARMEN NICASIO M,期刊：Organic Letters, 页码：4318-4321 , 文章类型： Article，,卷期：2012年14-17] The complex (IPr)Ni(allyl)Cl (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolidene) catalyzes the cross-coupling reactions of heteroaromatic chlorides with aryl Grignard reagents. Catalyst loadings as low as 0.1 mol % have ... Highly Enantioselective Conjugate Addition of Malononitrile to 2-Enoylpyridines with Bifunctional Organocatalyst [作者：MOLLETI NAGARAJU; RANA NIRMAL K; SINGH VINOD K,期刊：Organic Letters, 页码：4322-4325 , 文章类型： Article，,卷期：2012年14-17] An efficient enantioselective conjugate addition of malononitrile to a range of beta-substituted 2-enoylpyridines catalyzed by cinchona alkaloid-based bifunctional urea catalysts has been developed. Both enantiomers of t... Nickel-Mediated N-Arylation with Arylboronic Acids: An Avenue to Chan-Lam Coupling [作者：RAGHUVANSHI DUSHYANT SINGH; GUPTA AMIT KUMAR; SINGH KRISHNA NAND,期刊：Organic Letters, 页码：4326-4329 , 文章类型： Article，,卷期：2012年14-17] An efficient use of NiCl2 center dot 6H(2)O, for the cross-coupling of arylboronic acids with various N-nucleophiles, has been demonstrated. The method is practical and offers an alternative to the corresponding Cu-media... Fine-tuning the Electronic Structure of Organic Dyes for Dye-Sensitized Solar Cells [作者：GAO PENG; TSAO HOI NOK; GRAETZEL MICHAEL; NAZEERUDDIN MOHAMMAD K,期刊：Organic Letters, 页码：4330-4333 , 文章类型： Article，,卷期：2012年14-17] A series of metal-free organic dyes exploiting different combinations of (hetero)cyclic linkers (benzene, thiophene, and thiazole) and bridges (4H-cyclopenta[2,1-b:3,4-b']dithiophene (CPDT) and benzodithiophene (BDT)) as... Benzylidene-Oxazolones as Molecular Photoswitches [作者：BLANCOLOMAS MARINA; CAMPOS PEDRO J; SAMPEDRO DIEGO,期刊：Organic Letters, 页码：4334-4337 , 文章类型： Article，,卷期：2012年14-17] The synthesis and photochemical study of a family of molecular switches inspired by the green fluorescent protein (UP) chromophore is presented. These compounds can be easily synthesized, and their photophysical properti... Synthesis of 6,6 '-Binaphthopyran-2-one Natural Products: Pigmentosin A, Talaroderxines A and B [作者：GROVE CHARLES I; DI MASO MICHAEL J; JAIPURI FIROZ A; KIM MICHELLE B; SHAW JARED T,期刊：Organic Letters, 页码：4338-4341 , 文章类型： Article，,卷期：2012年14-17] Efficient and stereoselective syntheses of pigmentosin A, talaroderxine A, and its diastereomer talaroderxine B are reported. The binaphthyl ring system is assembled by vanadium-catalyzed phenolic coupling of tricyclic p... Parallel Microflow Photochemistry: Process Optimization, Scale-up, and Library Synthesis [作者：YAVORSKYY ALEXANDER; SHVYDKIV OKSANA; HOFFMANN NORBERT; NOLAN KIERAN; OELGEMOELLER MICHAEL,期刊：Organic Letters, 页码：4342-4345 , 文章类型： Article，,卷期：2012年14-17] A novel, multimicrocapillary flow reactor (M mu CFR) was constructed and applied to a series of sensitized photoadditions involving 2(5H)-furanones. The reactor allowed for rapid and energy-, time-, and space-efficient s... Solvent- or Temperature-Controlled Diastereoselective Aldol Reaction of Methyl Phenylacetate [作者：RAMACHANDRAN P VEERARAGHAVAN; CHANDA PREM B,期刊：Organic Letters, 页码：4346-4349 , 文章类型： Article，,卷期：2012年14-17] Unlike the enolboration-aldolization of methyl propanoate, the choice of either the solvent or temperature determines the diastereoselectivity during the enolboration-aldolization of methyl phenylacetate. In CH2Cl2, the ... Total Synthesis of (-)-Irciniastatin B and Structural Confirmation via Chemical Conversion to (+)-Irciniastatin A (Psymberin) [作者：AN CHIHUI; HOYE ADAM T; SMITH AMOS B III,期刊：Organic Letters, 页码：4350-4353 , 文章类型： Article，,卷期：2012年14-17] The total synthesis and structural confirmation of the marine sponge cytotoxin (-)-irciniastatin B has been achieved via a unified strategy employing a late-stage, selective deprotection/oxidation sequence that provides ... Rapid Construction of the Aza-Propellane Core of Acutumine via a Photochemical [2+2] Cycloaddition Reaction [作者：NAVARRO RAUL; REISMAN SARAH E,期刊：Organic Letters, 页码：4354-4357 , 文章类型： Article，,卷期：2012年14-17] Synthetic efforts toward the chlorinated aza-propellane alkaloid acutumine (1) are described. The key vicinal quaternary centers were constructed by a photochemical [2 + 2] cycloaddition reaction of a furanyl-tetrahydroi... Decarboxylative Acylation of Cyclic Enamides with alpha-Oxocarboxylic Acids by Palladium-Catalyzed C-H Activation at Room Temperature [作者：WANG HUA; GUO LINA; DUAN XINHUA,期刊：Organic Letters, 页码：4358-4361 , 文章类型： Article，,卷期：2012年14-17] An efficient catalytic decarboxylative acylation of unactivated sp(2)(alkenyl) C-H bonds has been developed. Various substituted alpha-oxocarboxylic acids with different electronic properties react under mild conditions ...