- Bioactive nitronaphthalenes from an endophytic fungus, Coniothyrium sp., and their chemical synthesis.
[作者:Krohn, Karsten;Kouam, Simeon F.;Cludius-Brandt, Stephan;Draeger, Siegfried;Schulz, Barbara;,期刊:European Journal of Organic Chemistry, 页码:3615-3618 , 文章类型: 研究论文,,卷期:2008年-21]
- 1, 10 Four natural nitro metabolites, 1-hydroxy-5-methoxy-2-nitro-naphthalene, 1,5-dimethoxy-4-nitronaphthalene, 1-hydroxy-5-methoxy-2,4-dinitronaphthalene, and 1,5-di-methoxy-4,8-dinitronaphthalene, known from chem. syn...
- Efficient synthesis of hydroxy-substituted cispentacin derivatives.
[作者:Benedek, Gabriella;Palko, Marta;Weber, Edit;Martinek, Tamas A.;Forro, Eniko;Fueloep, Ferenc;,期刊:European Journal of Organic Chemistry, 页码:3724-3730 , 文章类型: 研究论文,,卷期:2008年-21]
- Starting from N-protected cis-2-aminocyclopent-3-enecarboxylic acid derivs., compd. I was prepd. via oxazoline intermediates. Meanwhile, compd. II was also synthesized by adapting a OsO4-catalyzed oxidn. Their enantiome...
- Synthesis of new polycyclic g- and d-lactones upon activation of, and nucleophilic additions to, diazines: influence of the activating agents.
[作者:Garduno-Alva, A.;Xu, Y.;Gualo-Soberanes, N.;Lopez-Cortes, J.;Rudler, H.;Parlier, A.;Ortega-Alfaro, M. C.;Alvarez-Toledano, C.;Toscano, R. A.;,期刊:European Journal of Organic Chemistry, 页码:3714-3723 , 文章类型: 研究论文,,卷期:2008年-21]
- The reaction of bis(trimethylsilyl)ketene acetals I [R1 = R2 = Me, R1R2 = (CH2)5] with N-heterocycles contg. either one or two nitrogen atoms in the presence of triflic anhydride has been examd. and the structures of the...
- 2H-Pyrrole derivatives from an aza-Nazarov reaction cascade involving indole as the neutral leaving group.
[作者:Ghavtadze, Nugzar;Froehlich, Roland;Wuerthwein, Ernst-Ulrich;,期刊:European Journal of Organic Chemistry, 页码:3656-3667 , 文章类型: 研究论文,,卷期:2008年-21]
- Trifluoromethyl-substituted N-indolinyl-1-aza-1,4-dien-3-ones, e.g., I, which are accessible in good yields from indolinylimino esters, e.g., II in a two-step procedure, undergo a novel type of aza-Nazarov cyclization if...
- A convenient access to variously substituted spiro[cyclopropane-1,4'-oxazoline]s.
[作者:Dalai, Suryakanta;Es-Sayed, Mazen;Noetzel, Marcus;de Meijere, Armin;,期刊:European Journal of Organic Chemistry, 页码:3709-3713 , 文章类型: 研究论文,,卷期:2008年-21]
- Michael addns. of aryl carboxamides under basic conditions onto Me 2-chloro-2-cyclopropylideneacetate I with subsequent ring closure furnished the 4-spirocyclopropanated Me oxazolinecarboxylates II (R = H, 4-CF3, 4-Br, 3...
- Superacid-catalyzed dimerization/cyclization of isopropenyl-PAHs - novel pathways to PAH dimers, phenalenes and their stable carbocations.
[作者:Brule, Cedric;Sultana, Fatima;Hollenstein, Sandro;Okazaki, Takao;Laali, Kenneth K.;,期刊:European Journal of Organic Chemistry, 页码:3700-3708 , 文章类型: 研究论文,,卷期:2008年-21]
- The isopropenyl derivs. of representative classes of polycyclic arom. hydrocarbons (PAHs) having four and five fused-ring systems, namely pyrene, chrysene, benzo[c]phenanthrene, dibenzo[a,c]anthracene and perylene, were ...
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