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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68条记录   Frontiers and Opportunities in Chemoenzymatic Synthesis [作者：MORTISON JONATHAN D; SHERMAN DAVID H,期刊：Journal of Organic Chemistry, 页码：7041-7051 , 文章类型： Article，,卷期：2010年75-21] Natural product biosynthetic pathways have evolved enzymes with myriad activities that represent an expansive array of chemical transformations for constructing secondary metabolites. Recently, harnessing the biosyntheti... Total Synthesis of (-)-Callipeltoside A [作者：HOYE THOMAS R; DANIELSON MICHAEL E; MAY AARON E; ZHAO HONGYU,期刊：Journal of Organic Chemistry, 页码：7052-7060 , 文章类型： Article，,卷期：2010年75-21] A total synthesis of (-)-callipeltosicle A (1) has been achieved. The core macrocycle was made via a dual macrolactonization/pyran hemiketal formation reaction, developed to circumvent issues related to the reversible na... Domino Imino-Aldol-Aza-Michael Reaction: One-Pot Diastereo- and Enantioselective Synthesis of Piperidines [作者：GHORAI MANAS K; HALDER SANDIPAN; DAS RAJ KUMAR,期刊：Journal of Organic Chemistry, 页码：7061-7072 , 文章类型： Article，,卷期：2010年75-21] Addition of alpha-arylmethylidene- or alpha-alkylidene-beta-keto ester enolate to N-activated aldimines via the imino aldol pathway followed by intramolecular aza-Michael reaction in a domino fashion has been developed, ... A Reductive-Coupling plus Nazarov Cyclization Sequence in the Asymmetric Synthesis of Five-Membered Carbocycles [作者：KERR DANIEL J; WHITE JONATHAN M; FLYNN BERNARD L,期刊：Journal of Organic Chemistry, 页码：7073-7084 , 文章类型： Article，,卷期：2010年75-21] Palladium-mediated hydrostannylation of alkynoyl compounds is combined with Stille-Scott cross-coupling (reductive-coupling) to give one-pot access to divinyl and aryl vinyl ketones, which undergo Nazarov cyclization to ... Palladium-Catalyzed Tandem Heck-Lactonization from o-Iodophenols and Enoates: Synthesis of Coumarins and the Study of the Mechanism by Electrospray Ionization Mass Spectrometry [作者：FERNANDES TALITA DE A; VAZ BONIEK GONTIJO; EBERLIN MARCOS N; DA SILVA ALCIDES J M; COSTA PAULO R R,期刊：Journal of Organic Chemistry, 页码：7085-7091 , 文章类型： Article，,卷期：2010年75-21] The tandem Heck-lactonization reaction between enoates Z-1a,b, E-1a, E-2a-d, Z-2e, 2f, and o-iodophenols (4a-f) was studied in the presence of substoichiometric amounts of Pd(OAc)(2) or PdCl2, under experimental conditio... Enantioselective Synthesis of Cyclic, Quaternary Oxonitriles [作者：GUNES YAKUP; POLAT M FATIH; SAHIN ERTAN; FLEMING FRASER F; ALTUNDAS RAMAZAN,期刊：Journal of Organic Chemistry, 页码：7092-7098 , 文章类型： Article，,卷期：2010年75-21] Quaternary oxonitriles are stereoselectively generated from the union of five-, six-, and seven-membered 2-chloroalkenecarbonitriles with chiral alcohols via a Claisen rearrangement. The strategy rests on a new conjugate... A Highly Diastereoselective Synthesis of alpha-Hydroxy-beta-amino Acid Derivatives via a Lewis Acid Catalyzed Three-Component Condensation Reaction [作者：GASSA FEDERICO; CONTINI ALESSANDRO; FONTANA GABRIELE; PELLEGRINO SARA; GELMI MARIA LUISA,期刊：Journal of Organic Chemistry, 页码：7099-7106 , 文章类型： Article，,卷期：2010年75-21] A very efficient three-component synthesis of a series of syn alpha-hydroxy-beta-amino esters, obtained in high diastereoselection and yield, was realized starting from an aldehyde, benzylamine, and the ketene silyl acet... Green Synthesis of alpha,beta- and beta,beta-Dipeptides under Solvent-Free Conditions [作者：HERNANDEZ JOSE G; JUARISTI EUSEBIO,期刊：Journal of Organic Chemistry, 页码：7107-7111 , 文章类型： Article，,卷期：2010年75-21] The reactivity of N-tert-butyloxycarbonyl-N-carboxyanhydrides derived from beta-alanine, (S)-beta(3-)homophenylglycine, and (S)-beta(3)-carboxyhomoglycine with different alpha- and beta-amino ester hydrochlorides was exa... Carbanionic Rearrangements of Halomethylenecyclobutanes. Stereochemistry of the Migrating Group [作者：DU ZHENGMING; ERICKSON KAREN L,期刊：Journal of Organic Chemistry, 页码：7129-7140 , 文章类型： Article，,卷期：2010年75-21] The unusual base-induced ring-enlargement of halomethylenecyclobutanes to 1-halocyclopentenes was examined with unsymmetrical and C-13-labeled substrates to study regio- and stereochemical characteristics. Migration of a... N-Phosphorylated Imidazolium Salts as Precursors to 2-and 5-Phosphorylated Imidazoles and New Imidazol-2-ylidenes Featuring the PNCN Unit [作者：MARCHENKO ANATOLII P; KOIDAN HEORGII N; HURYEVA ANASTASIYA N; ZARUDNITSKII EVGENIY V; YURCHENKO ALEKSANDR A; KOSTYUK ALEKSANDR N,期刊：Journal of Organic Chemistry, 页码：7141-7145 , 文章类型： Article，,卷期：2010年75-21] It has been experimentally proven that the reaction of 1- or 1,2-disubstituted imidazoles with diorganylphosphorus(III) halides proceeds via initial formation of N-phosporylated imidazolium salts. Treatment of these salt... Studies toward the Total Syntheses of Cucurbitacins B and D [作者：JUNG MICHAEL E; LUI REBECCA M,期刊：Journal of Organic Chemistry, 页码：7146-7158 , 文章类型： Article，,卷期：2010年75-21] Synthetic efforts toward the convergent construction of the tetracyclic triterpenoids cucurbitacins B and D are described. The results of a Diels-Alder study examining the effects of steric and electronic variations of 2... Pyrene Excimer-Based Calix[4]arene FRET Chemosensor for Mercury(II) [作者：LEE YOUNGHOON; LEE MIN HEE; ZHANG JUN FENG; KIM JONG SEUNG,期刊：Journal of Organic Chemistry, 页码：7159-7165 , 文章类型： Article，,卷期：2010年75-21] A novel calix[4]arene derivative locked in the 1,3-alternate conformation (2) bearing two pyrene and rhodamine fluorophores was synthesized as a selective sensor for the Hg2+ ion. The sensoring is based on FRET from pyre... P[N(i-Bu)CH2CH2](3)N: Nonionic Lewis Base for Promoting the Room-Temperature Synthesis of alpha,beta-Unsaturated Esters, Fluorides, Ketones, and Nitriles Using Wadsworth-Emmons Phosphonates [作者：CHINTAREDDY VENKAT REDDY; ELLERN ARKADY; VERKADE JOHN G,期刊：Journal of Organic Chemistry, 页码：7166-7174 , 文章类型： Article，,卷期：2010年75-21] The bicyclic triaminophosphine P(RNCH2CH2)(3)N (R = i-Bu, 1c) serves as an effective promoter for the room-temperature stereoselective synthesis of alpha,beta-unsaturated esters, fluorides, and nitriles from a wide array... Importance of Equilibrium Fluctuations between Most Stable Conformers in the Control of the Reaction Mechanism [作者：SOUZA BRUNO S; NOME FARUK,期刊：Journal of Organic Chemistry, 页码：7186-7193 , 文章类型： Article，,卷期：2010年75-21] Hydrolysis of closely related compounds show how subtle structural differences markedly change reaction mechanisms. While in the hydrolysis of 3-acetoxy-2-naphthoic acid (3AC2NA) the reacting groups rotate freely, favori... Evaluation of Catalyst Acidity and Substrate Electronic Effects in a Hydrogen Bond-Catalyzed Enantioselective Reaction [作者：JENSEN KATRINA H; SIGMAN MATTHEW S,期刊：Journal of Organic Chemistry, 页码：7194-7201 , 文章类型： Article，,卷期：2010年75-21] A modular catalyst structure was applied to evaluate the effects of catalyst acidity in a hydrogen bond-catalyzed hetero Diets-Alder reaction. Linear free energy relationships between catalyst acidity and both rate and e... A Three-Step Synthetic Approach to Asymmetrically Functionalized 4H-Cyclopenta[2,1-b:3,4-b ']dithiophenes [作者：VAN MIERLOO SARAH; ADRIAENSENS PETER J; MAES WOUTER; LUTSEN LAURENCE; CLEIJ THOMAS J; BOTEK EDITH; CHAMPAGNE BENOIT; VANDERZANDE DIRK J,期刊：Journal of Organic Chemistry, 页码：7202-7209 , 文章类型： Article，,卷期：2010年75-21] A convenient and efficient three-step route toward both symmetrically and asymmetrically functionalized 4H-cyclopenta[2,1-b:3,4-b']dithiophenes has been developed. Using this method a broad collection of functionalized b...