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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72条记录   Palladium-Catalyzed Carbo-Heterofunctionalization of Alkenes for the Synthesis of Oxindoles and Spirooxindoles [作者：JAEGLI STEPHANIE; DUFOUR JEREMY; WEI HAILONG; PIOU TIFFANY; DUAN XINHUA; VORS JEANPIERRE; NEUVILLE LUC; ZHU JIEPING,期刊：Organic Letters, 页码：4498-4501 , 文章类型： Article，,卷期：2010年12-20] A palladium-catalyzed oxidative carbo-heterofunctionalization of aniline derivatives involving concomitant direct C H functionalization and C X bond formation was developed By simply changing the reaction conditions (sol... Dragmacidin E Synthesis Studies. Preparation of a Model Heptacyclic Core Structure [作者：FELDMAN KEN S; NGERNMEESN PAIBOON,期刊：Organic Letters, 页码：4502-4505 , 文章类型： Article，,卷期：2010年12-20] The conversion of a cycloheptannelated indole platform into the heptacyclic core structure of dragmacidin E proceeded over nine steps. Key sequences include a cyclocondensation to form an intermediate dihydropyrazinone r... Palladium-Catalyzed Oxidative Cross-Coupling Reaction of Arylboronic Acids with Diazoesters for Stereoselective Synthesis of (E)-alpha,beta-Diarylacrylates [作者：TSOI YUKTAI; ZHOU ZHONGYUAN; CHAN ALBERT S C; YU WINGYIU,期刊：Organic Letters, 页码：4506-4509 , 文章类型： Article，,卷期：2010年12-20] A Pd-catalyzed oxidative cross-coupling reaction of arylboronic acids with alpha-diazoesters was achieved using molecular oxygen as the sole reoxidant, and E-alpha,beta-diarylacrylates were obtained in good yields and >2... Tetraquinanes via [4+4] Photocycloaddition/Transannular Ring Closure [作者：CHEN PAILING; CARROLL PATRICK J; SIEBURTH SCOTT MCN,期刊：Organic Letters, 页码：4510-4512 , 文章类型： Article，,卷期：2010年12-20] Intramolecular [4 + 4] photocycloaddition of a furan and a cyclopentane-annulated 2-pyridone yields a cyclooctadtene product with four new stereogenic centers. Transannular ring closure produces the 5-5-5-5 fused ring sy... A Five-Step Synthesis of (S)-Macrostomine from (S)-Nicotine [作者：ENAMORADO MONICA F; ONDACHI PAULINE W; COMINS DANIEL L,期刊：Organic Letters, 页码：4513-4515 , 文章类型： Article，,卷期：2010年12-20] A concise synthesis of (S)-macrostomine has been accomplished in five steps from natural nicotine in 19% overall yield via a pyridine Die Is Alder cycloaddition reaction as the key step. A Kumada cross-coupling reaction ... Convergent Route to the Spirohexenolide Macrocycle [作者：JONES BRIAN D; LA CLAIR JAMES J; MOORE CURTIS E; RHEINGOLD ARNOLD L; BURKART MICHAEL D,期刊：Organic Letters, 页码：4516-4519 , 文章类型： Article，,卷期：2010年12-20] Using key functional dissections, the synthesis of spirohezenolides is examined through a three-component strategy that features a 1,2-addition to couple tetronate and aldehyde components forming the C2-C3 bond and a Sti... Synthesis of pi-Extended Thiadiazole (Oxides) and Their Electronic Properties [作者：LINDER THOMAS; BADIOLA EIDER; BAUMGARTNER THOMAS; SUTHERLAND TODD C,期刊：Organic Letters, 页码：4520-4523 , 文章类型： Article，,卷期：2010年12-20] The syntheses of extended thiadiazole, thiadiazole oxide, and thiadiazole dioxide heterocycles are described The electron-accepting heterocycles mere investigated by X-ray crystallography and optical as well as electroch... Diels-Alder Reactions of Cyclic Isoimidium Salts [作者：BOECKMAN ROBERT K JR; MILLER YAN; RYDER TODD R,期刊：Organic Letters, 页码：4524-4527 , 文章类型： Article，,卷期：2010年12-20] Diels-alder reactions of cyclic isoimidium salts are described. The corresponding cycloadducts are obtained with high regio- and stereoselectivity The use of homochiral cyclic isoimidium salts delivers cycloadducts with ... Formal Total Synthesis of Okadaic Acid via Regiocontrolled Gold(I)-Catalyzed Spiroketalizations [作者：FANG CHAO; PANG YUCHENG; FORSYTH CRAIG J,期刊：Organic Letters, 页码：4528-4531 , 文章类型： Article，,卷期：2010年12-20] Both C19 and C34 spiroketal domains of okadaic acid were assembled using gold(I) chloride catalyzed spiroketalizations, and the two resulting fragments were coupled to give the C15-C38 fragment of okadaic acid, a known i... Extending Pummerer Reaction Chemistry: Application to the Assembly of the Pentacyclic Core of Dibromopalau'amine [作者：FELDMAN KEN S; NURIYE AHMED YIMAM,期刊：Organic Letters, 页码：4532-4535 , 文章类型： Article，,卷期：2010年12-20] A pentacyclic model system featuring the trans azabicyclo[33.0]octane unit of dibromopalau'amine was prepared with complete diastereoselectivity in the polycyclic core from a tricyclic precursor The key transformations o... Nickel-Catalyzed Ring-Opening Three-Component Coupling of Methylenecyclopropane with Aldehydes and Silanes [作者：OGATA KENICHI; ATSUUMI YUKA; FUKUZAWA SHINICHI,期刊：Organic Letters, 页码：4536-4539 , 文章类型： Article，,卷期：2010年12-20] A nickel-catalyzed three-component coupling between methylenecyclopropane, aldehydes, and silanes afforded silylated allylic alcohols that possess an alkyl substituent at the 2-position via cleavage of the proximal C-C b... H2O2-Oxidation of Alcohols Promoted by Polymeric Phosphotungstate Catalysts [作者：YAMADA YOICHI M A; JIN CHUNG KEUN; UOZUMI YASUHIRO,期刊：Organic Letters, 页码：4540-4543 , 文章类型： Article，,卷期：2010年12-20] A novel polymeric phosphotungstate catalyst bearing a poly(ethylene oxide-pyridinium) matrix was developed that efficiently promoted oxidation of a variety of alcohols, including highly sterically demanding neopentyl alc... Chemistry in Confined Spaces: High-Energy Conformer of a Piperidine Derivative is Favored Within a Water-Soluble Capsuleplex [作者：POREL MINTU; JAYARAJ NITHYANANDHAN; RAGHOTHAMA S; RAMAMURTHY V,期刊：Organic Letters, 页码：4544-4547 , 文章类型： Article，,卷期：2010年12-20] Propyloxy-substituted piperidine in solution adopts a conformation in which its alkoxy group is equatorially positioned Surprisingly, two conformers of it that do not interconvert in the NMR time scale at room temperatur... Decarbonylative Cycloaddition of Phthalimides with 1,3-Dienes [作者：FUJIWARA KYOHEI; KURAHASHI TAKUYA; MATSUBARA SEIJIRO,期刊：Organic Letters, 页码：4548-4551 , 文章类型： Article，,卷期：2010年12-20] The decarbonylative cycloadditions of phthalimides with 1,3-dienes were performed by using nickel catalyst The reactions afford 3-vinyldihydroisoquinolones regioselectively with respect to both 1,3-dienes and phthalimide... Efficient Catalytic, Oxidative Lactonization for the Synthesis of Benzodioxepinones Using Thiazolium-Derived Carbene Catalysts [作者：ROSE CHRISTOPHER A; ZEITLER KIRSTEN,期刊：Organic Letters, 页码：4552-4555 , 文章类型： Article，,卷期：2010年12-20] An efficient, oxidative carbene-catalyzed lactonization reaction has been developed. Using thiazolium precatalysts, a variety of benzodioxepinone products are accessible in good to excellent yields under mild and operati... Mechanistic Insights into Nickel-Catalyzed Cycloisomerizations [作者：PHILLIPS JOHN H; MONTGOMERY JOHN,期刊：Organic Letters, 页码：4556-4559 , 文章类型： Article，,卷期：2010年12-20] A nickel-catalyzed cycloisomerization coupling an allylic alcohol with an alkyne has been developed Mechanistic insights gained through deuterium-labeling crossover studies and stereochemical probes illustrate that oxida...