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   Rotary Molecular Motors: A Large Increase in Speed through a Small Change in Design [作者：LANDALUCE TATIANA FERNANDEZ; LONDON GABOR; POLLARD MICHAEL M; RUDOLF PETRA; FERINGA BEN L,期刊：Journal of Organic Chemistry, 页码：5323-5325 , 文章类型： Article，,卷期：2010年75-15] Reducing the steric interaction between the upper-half and the lower-half of a light-driven rotary molecular motor by decreasing the size of the aromatic moiety in the upper-half from a naphthalene to a benzothiophene re... Mild and Highly Enantioselective Vinylogous Aldol Reaction of Brassard's Diene with Aromatic Aldehydes by Combined Lewis Acid Catalyst [作者：WANG GUOWEI; ZHAO JINFENG; ZHOU YUHAN; WANG BAOMIN; QU JINGPING,期刊：Journal of Organic Chemistry, 页码：5326-5329 , 文章类型： Article，,卷期：2010年75-15] The combined Lewis acid catalytic system, generated from (R)-1,1'-bi-2-naphthol [(R)-BINOL], Ti(O-i-Pr)(4), H2O, and lithium chloride, effectively catalyzed the enantioselective vinylogous aldol reaction of Brassard's di... C-H Bonds as Ubiquitous Functionality: A General Approach to Complex Arylated Imidazoles via Regioselective Sequential Arylation of All Three C-H Bonds and Regioselective N-Alkylation Enabled by SEM-Group Transposition [作者：JOO JUNG MIN; TOURE B BARRY; SAMES DALIBOR,期刊：Journal of Organic Chemistry, 页码：4911-4920 , 文章类型： Article，,卷期：2010年75-15] Imidazoles are an important group of the azole family of heterocycles frequently found in pharmaceuticals, drug candidates, ligands for transition metal catalysts, and other molecular functional materials. Owing to their... 5-N,4-O-Carbonyl-7,8,9-tri-O-chloroacetyl-Protected Sialyl Donor for the Stereoselective Synthesis of alpha-(2 -> 9)-Tetrasialic Acid [作者：LIN CHANGCHING; LIN NAIPIN; SAHABUDDIN L SK; REDDY VIJAYA RAGHAVA; HUANG LIDE; HWANG KUO CHU; LIN CHUNCHENG,期刊：Journal of Organic Chemistry, 页码：4921-4928 , 文章类型： Article，,卷期：2010年75-15] An efficient stereoselective synthesis of alpha-(2 -> 9)-tetrasialic acid was achieved using tri-O-chloroacetyl-derivatized sialyl donor and a triol sialyl acceptor. Both the acceptor and the donor were also protected wi... Development of an Enantioselective Route toward the Lycopodium Alkaloids: Total Synthesis of Lycopodine [作者：YANG HUA; CARTER RICH G,期刊：Journal of Organic Chemistry, 页码：4929-4938 , 文章类型： Article，,卷期：2010年75-15] Synthesis of a C-15-desmethyl tricycle core of lycopodine has been accomplished. Key steps in the synthetic sequence include organocatalytic, intramolecular Michael addition of a keto sulfone and a tandem 1,3-sulfonyl sh... Boron-Containing Monopyrrolo-Annelated Tetra thiafulvalene Compounds: Synthesis and Absorption Spectral/Electrochemical Responsiveness toward Fluoride Ion [作者：LI JING; ZHANG GUANXIN; ZHANG DEQING; ZHENG RENHUI; SHI QIANG; ZHU DAOBEN,期刊：Journal of Organic Chemistry, 页码：5330-5333 , 文章类型： Article，,卷期：2010年75-15] Two new boron-based conjugated compounds 1 and 2 containing one and three monopyrrolo-annelated tetrathiafulvalene (TTF) unit(s) were synthesized and characterized. They exhibit typical ICT absorptions which can be modul... Stereocontrolled Synthesis of the PPAR-gamma Agonist 10-Nitrolinoleic Acid [作者：DUNNY ELIZABETH; EVANS PAUL,期刊：Journal of Organic Chemistry, 页码：5334-5336 , 文章类型： Article，,卷期：2010年75-15] The naturally occurring PPAR-gamma ligand 10-nitrooctadeca-9(E),12(Z)-dienoic acid (10-nitrolinoleic acid) (2a) was prepared as a single regio- and geometrical isomer in a practical eight-step, convergent sequence. The s... A Versatile Synthesis of Fumaquinone [作者：PENALOPEZ MIGUEL; MONTSERRAT MARTINEZ M; SARANDESES LUIS A; PEREZ SESTELO JOSE,期刊：Journal of Organic Chemistry, 页码：5337-5339 , 文章类型： Article，,卷期：2010年75-15] Fumaquinone, a novel prenylated naphthoquinone antibiotic, was synthetized from ethyl acetoacetate in three steps (58% overall yield). The key step of the synthesis is the construction of the naphthoquinone skeleton by a... Does 2-Methylacetophenone Comply with Steric Inhibition of Resonance? A Direct Experimental Proof of Its Nonplanar Conformation from a Joint Ab Initio/Electron Diffraction Analysis [作者：HNYK DRAHOMIR; SAMDAL SVEIN; EXNER OTTO; WANN DEREK A; RANKIN DAVID W H,期刊：Journal of Organic Chemistry, 页码：4939-4943 , 文章类型： Article，,卷期：2010年75-15] The structure and conformations of 2-methylacetophenone (1) have been investigated by ab initio calculations carried out at the MP2(full)/6-311++G** level and by gas electron diffraction (GED). According to both methods,... H-Bonding-Assisted Substituent Effect [作者：KRYGOWSKI TADEUSZ M; ZACHARAHOREGLAD JOANNA E; PALUSIAK MARCIN,期刊：Journal of Organic Chemistry, 页码：4944-4949 , 文章类型： Article，,卷期：2010年75-15] In this paper we investigate the influence of intramolecular noncovalent interaction, i.e., H-bonding and Li-bonding, on the properties of substituents communicating through the resonance (mesomeric) effect in such molec... Effect of Pressure on [2]Pseudorotaxane Formation and Decomplexation and Their Corresponding Activation Volumes [作者：TOKUNAGA YUJI; WAKAMATSU NANAE; OHIWA NORIHIRO; KIMIZUKA OSAMU; OHBAYASHI AKIHIRO; AKASAKA KOICHIRO; SAEKI SUSUMU; HISADA KENJI; GODA TATSUHIRO; SHIMOMURA YOUJI,期刊：Journal of Organic Chemistry, 页码：4950-4956 , 文章类型： Article，,卷期：2010年75-15] In this study, we investigated the effect of pressure on the formation and decomplexation of [2]pseudorotaxanes. High pressure accelerated the formation of [2]pseudorotaxanes in an aprotic nonpolar solvent (CDCl3/CD3CN) ... Hydroxyterphenylphoshine-Palladium Catalyst for Benzo[b]furan Synthesis from 2-Chlorophenols. Bifunctional Ligand Strategy for Cross-Coupling of Chloroarenes [作者：WANG JIARUI; MANABE KEI,期刊：Journal of Organic Chemistry, 页码：5340-5342 , 文章类型： Article，,卷期：2010年75-15] A catalyst composed of Pd and hydroxyterphenylphosphine was found to be effective for one-pot benzo[b]furan synthesis from 2-chlorophenols and alkynes. Toward Pyrrolo[2,3-d]pyrimidine Scaffolds [作者：EL KAIM LAURENT; GRIMAUD LAURENCE; WAGSCHAL SIMON,期刊：Journal of Organic Chemistry, 页码：5343-5346 , 文章类型： Article，,卷期：2010年75-15] Herein, we present a new route to highly substituted pyrrolo[2,3-d]pyrimidines featuring a Ugi-Smiles/Sonogashira cascade followed by an efficient base-catalyzed intramolecular cyclization. When formaldehyde is chosen as... Iron-Catalyzed Domino Process for the Synthesis of alpha-Carbonyl Furan Derivatives via One-Pot Cyclization Reaction [作者：JIANG HUANFENG; YAO WENJUAN; CAO HUA; HUANG HUAWEN; CAO DERONG,期刊：Journal of Organic Chemistry, 页码：5347-5350 , 文章类型： Article，,卷期：2010年75-15] The Fe(ClO4)(3)-catalyzed intramolecular rearrangement/cyclization/oxidation reaction sequence for the synthesis of alpha-carbonyl furan derivatives from electron-deficient alkynes and 2-yn-1-ols is reported. Acetic Acid Aldol Reactions in the Presence of Trimethylsilyl Trifluoromethanesulfonate [作者：DOWNEY C WADE; JOHNSON MILES W; LAWRENCE DANIEL H; FLEISHER ALAN S; TRACY KATHRYN J,期刊：Journal of Organic Chemistry, 页码：5351-5354 , 文章类型： Article，,卷期：2010年75-15] In the presence of TMSOTf and a trialkylamine base, acetic acid undergoes aldol addition to non-enolizable aldehydes under exceptionally mild conditions. Acidic workup yields the P-hydroxy carboxylic acid. The reaction a... Total Synthesis of Cryptoacetalide [作者：ZOU YAN; DEITERS ALEXANDER,期刊：Journal of Organic Chemistry, 页码：5355-5358 , 文章类型： Article，,卷期：2010年75-15] We are reporting the first total synthesis of the tetracyclic terpene natural product cryptoacetalide. Key steps of the synthesis are a microwave-mediated [2+2+2] cyclotrimerization reaction to construct the central benz...