- Asymmetric synthesis of iridoid derivatives using resolved 2-phenylindoline as a chiral auxiliary.
[作者:Santangelo, Ellen M.;Liblikas, Ilme;Mudalige, Anoma;Toernroos, Karl W.;Norrby, Per-Ola;Unelius, C. Rikard;,期刊:European Journal of Organic Chemistry, 页码:5915-5921 , 文章类型: 研究论文,,卷期:2008年-35]
- An asym. synthetic route to cis,cis-nepetalactol [(I); component of the sex pheromone for the hop aphid, Phorodon humuli] is presented. 2-Phenylindoline was resolved to provide a chiral auxiliary for the cycloaddn. of ox...
- Synthesis and NMDA receptor affinity of ring and side chain homologues of dexoxadrol.
[作者:Sax, Michael;Froehlich, Roland;Schepmann, Dirk;Wuensch, Bernhard;,期刊:European Journal of Organic Chemistry, 页码:6015-6028 , 文章类型: 研究论文,,卷期:2008年-35]
- Novel dexoxadrol derivs. with an expanded oxygen heterocycle (1,3-dioxane instead of 1,3-dioxolane), an enlarged distance between the two heterocycles, and an addnl. oxo group in the 4-position of the piperidine ring wer...
- Convenient microwave-assisted synthesis of 5-functionalized 1,2,4-triazolium ylides starting from N',N'-disubstituted carbohydrazonamides.
[作者:Khankischpur, Mehdi;Kurz, Thomas;,期刊:European Journal of Organic Chemistry, 页码:6029-6033 , 文章类型: 研究论文,,卷期:2008年-35]
- yields and in very short reaction times by reacting N',N'-disubstituted carbohydrazonamides with 1,1'-carbonylbis(1,2,4-triazole), 1,1'-thiocarbonyldiimidazole or di-Ph N-cyanimidocarbonate under microwave irradn.
- Construction of a statistical evaluation model based on molecular centrality to find retrosynthetically important bonds in organic compounds.
[作者:Tanaka, Akio;Kawai, Takashi;Matsumoto, Tsutomu;Fujii, Mihoko;Takabatake, Tetsuhiko;Okamoto, Hideho;Funatsu, Kimito;,期刊:European Journal of Organic Chemistry, 页码:5995-6007 , 文章类型: 研究论文,,卷期:2008年-35]
- For the purpose of finding retrosynthetically important bonds in a mol., a new evaluation score has been defined through a logistic regression anal. of known reactions stored in reaction databases. We conceived that rea...
- Solid-state fluorescence changes of 2-(4-cyanophenyl)-5-[4-(diethylamino)phenyl]-3H-imidazo[4,5-a]naphtha lene upon inclusion of organic solvent molecules.
[作者:Ooyama, Yousuke;Nagano, Shinobu;Okamura, Miyako;Yoshida, Katsuhira;,期刊:European Journal of Organic Chemistry, 页码:5899-5906 , 文章类型: 研究论文,,卷期:2008年-35]
- An imidazo[4,5-a]naphthalene-type fluorescent clathrate host 2-(4-cyanophenyl)-5-[4-(diethylamino)phenyl]-3H-imidazo[4,5-a]naphtha lene (2), with two possible tautomeric forms (A and B) of the imidazole ring, was prepd. ...
- Reaction of 1,2-diaza-1,3-butadienes with aminophosphorus nucleophiles: a practical access to new phosphorylated pyrazolones.
[作者:Attanasi, Orazio A.;Baccolini, Graziano;Boga, Carla;De Crescentini, Lucia;Giorgi, Gianluca;Mantellini, Fabio;Nicolini, Simona;,期刊:European Journal of Organic Chemistry, 页码:5965-5973 , 文章类型: 研究论文,,卷期:2008年-35]
- The reaction of 1,2-diaza-1,3-butadienes with dibenzyl diisopropylphosphoramidite, Me tetraisopropylphosphorodiamidite or tris(dimethylamino)phosphine under solvent-free conditions gave stable a-phosphoranylidene-hydrazo...
- Synthesis of 1-amino-1H-indole-3-carboxylates by copper(I)-catalyzed intramolecular amination of aryl bromides.
[作者:Melkonyan, Ferdinand;Topolyan, Artyom;Yurovskaya, Marina;Karchava, Alexander;,期刊:European Journal of Organic Chemistry, 页码:5952-5956 , 文章类型: 研究论文,,卷期:2008年-35]
- A simple route to various N-substituted 1-amino-lH-indole-3-carboxylates, e.g., I (R1 = H, OMe; R2 = Me, Boc; R3 = Me, Ph), by use of copper(I)-catalyzed intramol. N-arylation has been established. For the prepn. of N-m...
- Synthesis, optical resolution and enantiomeric recognition ability of novel, inherently chiral calix[4]arenes: trial application to asymmetric reactions as organocatalysts.
[作者:Shirakawa, Seiji;Moriyama, Akihiro;Shimizu, Shoichi;,期刊:European Journal of Organic Chemistry, 页码:5957-5964 , 文章类型: 研究论文,,卷期:2008年-35]
- Newly designed, inherently chiral calix[4]arenes contg. amino and phenol groups were synthesized and resolved to optically pure forms. The enantiomeric recognition ability of one chiral calix[4]arene, examd. with mandeli...
- Kinetic resolution of racemic carboxylic acids using achiral alcohols by the promotion of benzoic anhydrides and tetramisole derivatives: production of chiral nonsteroidal anti-inflammatory drugs and their esters.
[作者:Shiina, Isamu;Nakata, Kenya;Onda, Yu-suke;,期刊:European Journal of Organic Chemistry, 页码:5887-5890 , 文章类型: 研究论文,,卷期:2008年-35]
- Nonracemic a-methylarylacetic acids and their esters are prepd. in 36-55% and 31-51% yields and in 77-93% and 36-74% ee, resp., using kinetic resoln. of the racemic acids with bis(1-naphthyl)methanol, 4-methoxybenzoic an...
- 1,2,4,5-Tetrakis(tetramethylguanidino)benzene: synthesis and properties of a new molecular electron donor.
[作者:Peters, Anastasia;Kaifer, Elisabeth;Himmel, Hans-Joerg;,期刊:European Journal of Organic Chemistry, 页码:5907-5914 , 文章类型: 研究论文,,卷期:2008年-35]
- The mol. electron donor 1,2,4,5-tetrakis(tetramethylguanidino)benzene (ttmgb) was synthesized by reaction between 1,2,4,5-tetraaminobenzene and 2-chloro-1,1',3,3'-tetramethylformamidinium chloride. Protonation and oxidn...
- Stereoselective chemoenzymic synthesis of UDP-1,2-cis-furanoses from a,b-furanosyl 1-phosphates.
[作者:Peltier, Pauline;Guegan, Jean-Paul;Daniellou, Richard;Nugier-Chauvin, Caroline;Ferrieres, Vincent;,期刊:European Journal of Organic Chemistry, 页码:5988-5994 , 文章类型: 研究论文,,卷期:2008年-35]
- The biosynthesis of furanosyl-contg. glycoconjugates is poorly described, mainly due to the lack of UDP-furanoses. Here we present our effort to synthesize rare nucleotide-sugars with the aid of a multiple-enzyme system...
- An overview of syntheses of apogalanthamine analogues and 7-aza derivatives of steganacin and steganone.
[作者:Appukkuttan, Prasad;Van der Eycken, Erik;,期刊:European Journal of Organic Chemistry, 页码:5867-5886 , 文章类型: 研究论文,,卷期:2008年-35]
- analogs over the last four decades is presented. These amaryllidaceae alkaloid analogs bear a 5,6,7,8-tetrahydrodibenz[c,e]azocine skeleton, and are well known for their diverse and potent biol. activities. This micror...
- Stereoselective synthesis of chiral 2,3-disubstituted 2,3-dihydro-4(1H)-pyridones.
[作者:Etayo, Pablo;Badorrey, Ramon;Diaz-de-Villegas, Maria D.;Galvez, Jose A.;,期刊:European Journal of Organic Chemistry, 页码:6008-6014 , 文章类型: 研究论文,,卷期:2008年-35]
- The alkylation at C-3 of the easily accessible compd. I with different electrophiles took place with total trans diastereoselectivity to afford the corresponding (2R,3S)-2,3-disubstituted 2,3-dihydro-4(1H)-pyridones in e...
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