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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24条记录   An efficient method for the synthesis of a-hydroxyalkyl aryl ketones. [作者：Chen, Chengqun;Feng, Xinghua;Zhang, Guozhen;Zhao, Qin;Huang, Guosheng;,期刊：Synthesis, 页码：3205-3208 , 文章类型： 研究论文，,卷期：2008年-20] This method provides an effective and economical entry for the installation of a-hydroxy moieties into ketones and should find wide application in the construction of the a-hydroxy ketone subunit in natural product synth... A bio-inspired copper catalyst system for practical catalytic cyanation of aryl bromides. [作者：Schareina, Thomas;Zapf, Alexander;Cotte, Alain;Mueller, Nikolaus;Beller, Matthias;,期刊：Synthesis, 页码：3351-3355 , 文章类型： 研究论文，,卷期：2008年-20] A general and environmentally improved protocol for the cyanation of aryl halides with the nontoxic cyanide source K4[Fe(CN)6] is presented using Cu catalysis and a ligand system based on 1-alkyl-1H-imidazoles. The adva... Stereoselective synthesis of novel aristeromycin analogs as potential antiviral agents. [作者：Bremond, Paul;Audran, Gerard;Monti, Honore;De Clercq, Erik;,期刊：Synthesis, 页码：3253-3260 , 文章类型： 研究论文，,卷期：2008年-20] A series of 3'-methyl-branched and purine-modified analogs of aristeromycin were synthesized via the SN2 displacement of a key triflate, which was prepd. from a readily available enantiopure building block in eight steps... Facile synthesis of bicyclo orthoesters and bicyclo amide acetals using a,a-difluoroalkylamines. [作者：Tange, Seiko;Fukuhara, Tsuyoshi;Hara, Shoji;,期刊：Synthesis, 页码：3219-3222 , 文章类型： 研究论文，,卷期：2008年-20] Bicyclo orthoesters and amide acetals were prepd. from the corresponding triols or diethanolamines using a,a-difluoroalkylamines. The reaction proceeded under milder conditions than conventional methods. 4-Tert-Butyl-1-... A simple synthesis of new 2-thioxoimidazolidine-4,5-dicarboxylates from vicinal diisothiocyanatocarboxylates. [作者：Ciez, Dariusz;Kalinowska-Tluscik, Justyna;Peyrat, Sandrine;Touko, Elodie Pougoue;Trzewik, Bartosz;Zwolinski, Krzysztof;,期刊：Synthesis, 页码：3261-3266 , 文章类型： 研究论文，,卷期：2008年-20] hydrolysis of vicinal 2,3-diisothiocyanato carboxylates. The unsym. 2-thioxoimidazolidine-4,5-dicarboxylates were prepd. by addn. of a stoichiometric amt. of primary and secondary amines to vicinal 2,3-diisothiocyanato ... Baylis-Hillman reactions of 2-(trifluoroacetyl)-1,3-azoles. [作者：Khodakovskiy, Pavel V.;Volochnyuk, Dmitriy M.;Shivanyuk, Alexander;Shishkin, Oleg V.;Tolmachev, Andrey A.;,期刊：Synthesis, 页码：3245-3252 , 文章类型： 研究论文，,卷期：2008年-20] under Baylis-Hillman reaction conditions to afford heterocyclic trifluoromethyl-contg. allylic alcs. in 36-97% yields. The thus obtained Baylis-Hillman adducts readily undergo Michael addn. reactions with various nucleo... Facile and highly regiospecific synthesis of 2-aryl-substituted pyrazolidin-3-ones from a,b-unsaturated N-acylbenzotriazoles and arylhydrazines. [作者：Wang, Xiaoxia;Wang, Wencun;Wen, Yihang;He, Liang;Zhu, Xiangming;,期刊：Synthesis, 页码：3223-3228 , 文章类型： 研究论文，,卷期：2008年-20] The bis-addn. of arylhydrazines to a,b-unsatd. N-acylbenzotriazoles to form heterocyclic compds. was achieved in refluxing THF by using Et3N as promoter. The reaction was highly regioselective, and various 2-arylpyrazol... A facile synthesis of a spironitrone and a study of its cycloaddition and nucleophilic addition reactions. [作者：Crimmins, Daryl;Dimitrov, Ivaylo;O'Connor, Patrick D.;Caprio, Vittorio;Brimble, Margaret A.;,期刊：Synthesis, 页码：3319-3325 , 文章类型： 研究论文，,卷期：2008年-20] The synthesis of spiro nitrone I via microwave-assisted intramol. alkylation of 1-(4-bromobutyl)cyclohexanal oxime is reported. The bromo oxime is prepd. by alkylation of cyclohexanecarboxylate with Br(CH2)4Br followed ... A versatile one-pot synthesis of b-carbolines by reaction of pyranoindolones with phenyl- and benzoylhydrazine. [作者：Livadiotou, Despina;Hatzimimikou, Dimitra;Neochoritis, Constantinos;Terzidis, Michael A.;Tsoleridis, Constantinos A.;Stephanidou-Stephanatou, Julia;,期刊：Synthesis, 页码：3273-3278 , 文章类型： 研究论文，,卷期：2008年-20] The synthesis of a no. of 2-anilino- and 2-(benzoylamino)-b-carbolin-3-ones in good yields by a 1-step sequence from the reaction of pyranoindolones with phenyl- o benzoylhydrazine is described. The obsd. good regiosele... Gold-catalyzed dehydrative cyclization of allylic diols. [作者：Aponick, Aaron;Biannic, Berenger;,期刊：Synthesis, 页码：3356-3359 , 文章类型： 研究论文，,卷期：2008年-20] The Au(I)-catalyzed cyclization of monoallylic diols is an efficient method for the formation of tetrahydropyrans from readily available, easily prepd. substrates. The reaction is general and high yielding with low cata... Simple and efficient synthesis of racemic substituted mandelic acid esters from nonactivated arenes and ethyl glyoxylate. [作者：Kwiatkowski, Jacek;Majer, Jakub;Kwiatkowski, Piotr;Jurczak, Janusz;,期刊：Synthesis, 页码：3237-3244 , 文章类型： 研究论文，,卷期：2008年-20] A direct synthesis of racemic arom. a-hydroxyacetates is described via Friedel-Crafts reaction of non-activated, simple arenes with glyoxylate promoted by SnCl4 or AlCl3. The use of SnCl4 opens a fast access to various ... A new route for the preparation of succinates. [作者：Shimizu, Takeshi;Murakoshi, Katsunori;Yasui, Koji;Sodeoka, Mikiko;,期刊：Synthesis, 页码：3209-3218 , 文章类型： 研究论文，,卷期：2008年-20] Succinates of formyl-contg. tertiary alcs. were conveniently synthesized by oxidative cleavage of dihydropyrans prepd. from lactones via coupling of ketene acetal triflates and zinc homoenolates. A new one-pot synthetic method for selenium-containing medium-sized a,b-unsaturated cyclic ketones. [作者：Sashida, Haruki;Nakayama, Akemi;Kaname, Mamoru;,期刊：Synthesis, 页码：3229-3236 , 文章类型： 研究论文，,卷期：2008年-20] The reaction of tetrahydroselenopyran-2-one with ethynyllithiums, followed by treatment with aq. 5% H2SO4 successfully led to a two-carbon ring expansion to give the 2-substituted 5,6,7,8-tetrahydroselenocin-4-ones in 43... Enantioselective iridium-catalyzed allylic aminations of allylic carbonates with functionalized side chains. Asymmetric total synthesis of (S)-vigabatrin. [作者：Gnamm, Christian;Franck, Geraldine;Miller, Nicole;Stork, Timon;Broedner, Kerstin;Helmchen, Guenter;,期刊：Synthesis, 页码：3331-3350 , 文章类型： 研究论文，,卷期：2008年-20] well as enantioselectivity were achieved with diacylamides under salt-free conditions and with arylamines. The results allowed the antiepilepsy drug (S)-vigabatrin to be prepd. via a very short route. Immobilization of NHC-bearing palladium catalysts on polyvinylpyridine; applications in Suzuki-Miyaura and Hartwig-Buchwald reactions under batch and continuous-flow conditions. [作者：Mennecke, Klaas;Kirschning, Andreas;,期刊：Synthesis, 页码：3267-3272 , 文章类型： 研究论文，,卷期：2008年-20] The facile coordinative immobilization of Organ's PEPPSI catalyst on a composite material composed of megaporous glass and polyvinylpyridine is described. The catalyst showed very good performance in Suzuki-Miyaura as w... A novel, one-pot, efficient synthesis of 2-aroyl-1,4-diaryl-7,9-dimethyl-7,9-diazaspiro[4.5]deca-1,3-diene-6,8,1 0-triones. [作者：Adib, Mehdi;Sayahi, Mohammad Hosein;Ziyadi, Hakimeh;Zhu, Long-Guan;Bijanzadeh, Hamid Reza;,期刊：Synthesis, 页码：3289-3294 , 文章类型： 研究论文，,卷期：2008年-20] A novel and efficient synthesis of 2-aroyl-1,4-diaryl-7,9-dimethyl-7,9-diazaspiro[4.5]deca-1,3-diene-6,8,1 0-triones is described. The reactive 1:1 zwitterionic intermediate, formed by the addn. of PPh3 to diaroylacetyl...