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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22条记录   Synthesis of new b-hydroxy nitrate esters as potential glycomimetics or vasodilators. [作者：Cavdar, Huseyin;Saracoglu, Nurullah;,期刊：European Journal of Organic Chemistry, 页码：4615-4621 , 文章类型： 研究论文，,卷期：2008年-27] New b-hydroxy nitrates have been synthesized by the ring-opening reaction of epoxides with Bi(NO3)3?H2O, which was used both as a catalyst and reagent. E.g., ring-opening reaction of epoxide I gave 85% b-hydroxy nitrate... Protonation of diarylacetylenes in superacid HSO3F and their oxidation in the HSO3F/PbO2 system: one-pot synthesis of polysubstituted naphthalenes. [作者：Vasilyev, Aleksander V.;Shchukin, Andrey O.;Walspurger, Stephane;Sommer, Jean;,期刊：European Journal of Organic Chemistry, 页码：4632-4639 , 文章类型： 研究论文，,卷期：2008年-27] In the superacid HSO3F, diarylacetylenes bearing one electron-withdrawing group (NO2, CN, COMe, CO2Me) in each arene ring form stable ions, protonated at these groups. Oxidn. of such diarylacetylenes in the HSO3F/PbO2 s... Cyano-, nitro- and nitrosomethane derivatives: structures and gas-phase acidities. [作者：Brand, Harald;Liebman, Joel F.;Schulz, Axel;,期刊：European Journal of Organic Chemistry, 页码：4665-4675 , 文章类型： 研究论文，,卷期：2008年-27] The structures and gas-phase acidities of resonance-stabilized methane/methanide derivs. (H[CR1R2R3]/[CR1R2R3]- with R1,2,3 = H, NO2, NO, and CN) have been studied through B3LYP/aug-cc-pvTZ computations. The gas-phase a... Asymmetric Henry reactions catalyzed by metal complexes of chiral boron-bridged bisoxazoline (borabox) ligands. [作者：Toussaint, Aurelie;Pfaltz, Andreas;,期刊：European Journal of Organic Chemistry, 页码：4591-4597 , 文章类型： 研究论文，,卷期：2008年-27] Metal complexes of boron-bridged bisoxazolines (borabox ligands) were evaluated as catalysts for the Henry reaction. Copper(II) complexes induced high enantio- and diastereoselectivity in reactions with nitroethane and ... Biphenyl-based disc- vs. rod-shaped phenylacetylenes: mesomorphism and electronic properties. [作者：Hennrich, Gunther;Ortiz, Pedro D.;Cavero, Emma;Hanes, Robert, E.;Serrano, Jose Luis;,期刊：European Journal of Organic Chemistry, 页码：4575-4579 , 文章类型： 研究论文，,卷期：2008年-27] A std. Sonogashira coupling protocol has been applied for the prepn. of a C3-sym. phenylacetylene (2) and the corresponding linear phenylacetylene (3) incorporating terminal biphenyl substituents. The study of the mesom... A simple two-step sequence for the synthesis of novel 4-aryl-4,5-dihydro-6H-[1,3]dioxolo[4,5-h]pyrrolo[1,2-a][1]benzazepin-6-o nes from 6-amino-3,4-methylenedioxyacetophenone. [作者：Abonia, Rodrigo;Cuervo, Paola;Insuasty, Braulio;Quiroga, Jairo;Nogueras, Manuel;Cobo, Justo;,期刊：European Journal of Organic Chemistry, 页码：4684-4689 , 文章类型： 研究论文，,卷期：2008年-27] Here is provided an efficient and two-step short procedure for the synthesis of novel 6H-[1,3]dioxolobenzo[4,5-h]pyrrolo[1,2-a][1]benzazepin-6-one derivs., e.g., I, promoted by com. phosphoric acid. In a parallel approa... 1-Oxoniaadamantane. [作者：Etzkorn, Markus;Aniszfeld, Robert;Li, Tiejun;Buchholz, Herwig;Rasul, Golam;Prakash, G. K. Surya;Olah, George A.;,期刊：European Journal of Organic Chemistry, 页码：4555-4558 , 文章类型： 研究论文，,卷期：2008年-27] The missing member of the heteroadamantane series, 1-oxoniaadamantane (I), was prepd. by the ionization of suitable bicyclic precursors under strongly acidic conditions. The ion I was characterized by 1H and 13C NMR spe... Synthesis of alkaloids of Galipea officinalis by alkylation of an a-amino nitrile. [作者：Shahane, Saurabh;Louafi, Fadila;Moreau, Julie;Hurvois, Jean-Pierre;Renaud, Jean-Luc;van de Weghe, Pierre;Roisnel, Thierry;,期刊：European Journal of Organic Chemistry, 页码：4622-4631 , 文章类型： 研究论文，,卷期：2008年-27] A new synthetic approach directed towards the synthesis of naturally occurring 2-alkyl-tetrahydroquinolines was described. The C-C bonds in the a position relative to the nitrogen atom were formed by the reversal of the... A practical access to 1,2-diaminophytosphingolipids. [作者：Harrak, Youseff;Llebaria, Amaden;Delgado, Antonio;,期刊：European Journal of Organic Chemistry, 页码：4647-4654 , 文章类型： 研究论文，,卷期：2008年-27] A practical approach to the synthesis of phytosphingolipids contg. the 1,2-diamino framework is described. The methodol. relies on the regioselective ring-opening of phyrosphingosine-derived N-nosylaziridibes with prima... Protection/deprotection-free syntheses and structural analysis of (keto-aryl)diynes. [作者：Osowska, Karolina;Lis, Tadeusz;Szafert, Slawomir;,期刊：European Journal of Organic Chemistry, 页码：4598-4606 , 文章类型： 研究论文，,卷期：2008年-27] The reactions of 4-BrC6H4COR [R = H, Me, Et, Ph] with Me3SiCYCH (Sonogashira coupling) followed by in situ deprotection and subsequent dimerization gave thermally stable dimeric keto diynes 4-RCOCYCCYCCYCCOR-4 (I) as yel... Synthesis of novel amino-acid-derived sulfinamides and their evaluation as ligands for the enantioselective transfer hydrogenation of ketones. [作者：Zani, Lorenzo;Eriksson, Lars;Adolfsson, Hans;,期刊：European Journal of Organic Chemistry, 页码：4655-4664 , 文章类型： 研究论文，,卷期：2008年-27] Novel chiral mono-sulfinyl diamines bearing a stereogenic sulfur atom were prepd. in moderate to good yields by means of a reductive amination of the corresponding amino aldehydes. Their potential as ligands for asym. c... Pd(OAc)2/p-benzoquinone-catalyzed anaerobic electrooxidative homocoupling of arylboronic acids, arylboronates and aryltrifluoroborates in DMF and/or water. [作者：Amatore, Christian;Cammoun, Chama;Jutand, Anny;,期刊：European Journal of Organic Chemistry, 页码：4567-4570 , 文章类型： 研究论文，,卷期：2008年-27] A new anaerobic electrooxidative homocoupling of arylboronic acids, arylboronates and aryltrifluoroborates was developed in the presence of catalytic amts. of Pd(OAc)2 and p-benzoquinone, which serves as a redox mediator... Palladium-catalyzed asymmetric conjugate addition of aryl-metal species. [作者：Gutnov, Andrey;,期刊：European Journal of Organic Chemistry, 页码：4547-4554 , 文章类型： 研究论文，,卷期：2008年-27] The objective of this review is to summarize developments in the recently discovered area of palladium-catalyzed asym. Michael addns. of organometallic reagents to activated electron-deficient olefins in its practical an... Sugar-derived bifunctional thiourea organocatalyzed asymmetric michael addition of acetylacetone to nitroolefins. [作者：Gao, Peng;Wang, Chungui;Wu, Yang;Zhou, Zhenghong;Tang, Chuchi;,期刊：European Journal of Organic Chemistry, 页码：4563-4566 , 文章类型： 研究论文，,卷期：2008年-27] A bifunctional chiral thiourea organocatalyst bearing a glycosyl scaffold and a tertiary amino group proved to be an effective organocatalyst for the asym. Michael addn. of acetylacetone to nitroolefins. The correspondi... InCl3-catalyzed rapid 1,3-alkoxy migration in glycal ethers: stereoselective- synthesis of unsaturated a-O-glycosides and an a,a-(1?)-linked disaccharide. [作者：Nagaraj, Paramathevar;Ramehs, Namakkal G.;,期刊：European Journal of Organic Chemistry, 页码：4607-4614 , 文章类型： 研究论文，,卷期：2008年-27] InCl3 catalyzes a facile stereoselective 1,3-migration of allylic ethers of glycals to afford 2-C-methylene- and 2,3-unsatd.-a-O-glycosides in high yields. The reaction is rapid (10 min), requires only 20 mol-% of the c... Improved preparation of 4,6,6-trimethyl-1,3,2-dioxaborinane and its use in a simple [PdCl2(TPP)2]-catalyzed borylation of aryl bromides and iodides. [作者：PraveenGanesh, Nageswaran;Chavant, Pierre Yves;,期刊：European Journal of Organic Chemistry, 页码：4690-4696 , 文章类型： 研究论文，,卷期：2008年-27] A convenient prepn. of 4,6,6-trimethyl-1,3,2-dioxaborinane (MethylPentaneDiolBorane, MPBH) and its use in the [PdCl2(PPh3)2]-catalyzed borylation of aryl bromides and iodides is reported. The boronic esters undergo rapi...