个性化文献订阅>文章检索

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79条记录   Efficient Synthesis of Fluoren-9-ones by the Palladium-Catalyzed Annulation of Arynes by 2-Haloarenecarboxaldehydes. [作者：Waldo, Jesse P.;Zhang, Xiaoxia;Shi, Feng;Larock, Richard C.;,期刊：Journal of Organic Chemistry, 页码：6679-6685 , 文章类型： 研究论文，,卷期：2008年73-17] Fluoren-9-ones and derivs. are readily prepd. in good yields by the annulation of in situ generated arynes by 2-haloarenecarboxaldehydes in the presence of a palladium catalyst. E.g., in presence of CsF, Pd(dba)2, and p... Constructing the OCF2O Moiety Using BrF3. [作者：Hagooly, Youlia;Rozen, Shlomo;,期刊：Journal of Organic Chemistry, 页码：6780-6783 , 文章类型： 研究论文，,卷期：2008年73-17] A general prepn. for arom. and aliph., cyclic as well as linear, sym. and asym. difluoromethylenedioxy derivs. is described. The alcs. were reacted with thiophosgene to give thiocarbonates, which in turn were reacted wi... A Practical and Efficient Route for the Highly Enantioselective Synthesis of Mexiletine Analogues and Novel b-Thiophenoxy and Pyridyl Ethers. [作者：Huang, Kun;Ortiz-Marciales, Margarita;Stepanenko, Viatcheslav;De Jesus, Melvin;Correa, Wildeliz;,期刊：Journal of Organic Chemistry, 页码：6928-6931 , 文章类型： 研究论文，,卷期：2008年73-17] A practical and efficient procedure for the enantioselective synthesis of mexiletine analogs, e.g. I, with use of 10% of spiroborate ester II as chirality transfer agent is presented. A variety of mexiletine analogs wer... A Xerogel-Sequestered Selenoxide Catalyst for Brominations with Hydrogen Peroxide and Sodium Bromide in an Aqueous Environment. [作者：Bennett, Stephanie M.;Tang, Ying;McMaster, Danielle;Bright, Frank V.;Detty, Michael R.;,期刊：Journal of Organic Chemistry, 页码：6849-6852 , 文章类型： 研究论文，,卷期：2008年73-17] 4-(Hydroxymethyl)phenyl benzyl selenoxide sequestered in a 3-aminopropyltriethoxysilane/tetraethoxysilane catalyzes the bromination of org. substrates (4-pentenoic acid, 3,5-dihydroxybenzoic acid, 1,3,5-trimethoxybenzene... A Protecting Group Free Synthesis of (?-Neostenine via the [5 + 2] Photocycloaddition of Maleimides. [作者：Lainchbury, Michael D.;Medley, Marcus I.;Taylor, Piers M.;Hirst, Paul;Dohle, Wolfgang;Booker-Milburn, Kevin I.;,期刊：Journal of Organic Chemistry, 页码：6497-6505 , 文章类型： 研究论文，,卷期：2008年73-17] A concise, linear synthesis of the Stemona alkaloid (?-neostenine (I) is reported. Key features include an organocopper-mediated bislactone C2-desymmetrization for the stereoselective construction of the cyclohexane-lac... A Synthetic Approach to the Fusicoccane A-B Ring Fragment Based on a Pauson-Khand Cycloaddition/Norrish Type 1 Fragmentation. [作者：Dake, Gregory R.;Fenster, Erik E.;Patrick, Brian O.;,期刊：Journal of Organic Chemistry, 页码：6711-6715 , 文章类型： 研究论文，,卷期：2008年73-17] A synthetic approach to the A-B ring system I within the fusicoccane family of diterpenes is presented. Key steps in this approach are a diastereoselective Pauson-Khand reaction, a Norrish 1 photofragmentation, a Charet... A Divergent Synthesis of Substituted 2-Aminoimidazoles from 2-Aminopyrimidines. [作者：Ermolat'ev, Denis S.;Van der Eycken, Erik V.;,期刊：Journal of Organic Chemistry, 页码：6691-6697 , 文章类型： 研究论文，,卷期：2008年73-17] A new divergent and efficient synthesis of substituted 2-aminoimidazoles and has been developed starting from readily available 2-aminopyrimidines and a-bromocarbonyl compds., using conventional heating or microwave irra... Synthesis of Heterocyclic Analogues of Epibatidine via 7-Azabicyclo[2.2.1]hept-2-yl Radical Intermediates. 1. Intermolecular Reactions. [作者：Gomez-Sanchez, Elena;Soriano, Elena;Marco-Contelles, Jose;,期刊：Journal of Organic Chemistry, 页码：6784-6792 , 文章类型： 研究论文，,卷期：2008年73-17] The synthesis and reactivity of the 7-azabicyclo[2.2.1]hept-2-yl radical has been extensively investigated in inter- and intramol. reaction processes for the first time. In this work we will present the prepn. of the ra... Mild and Highly Efficient Method for the Synthesis of 2-Arylbenzimidazoles and 2-Arylbenzothiazoles. [作者：Bahrami, Kiumars;Khodaei, M. Mehdi;Naali, Fardin;,期刊：Journal of Organic Chemistry, 页码：6835-6837 , 文章类型： 研究论文，,卷期：2008年73-17] A new, convenient method for the synthesis of C-2 substituted benzimidazoles and benzothiazoles was described. Thus, heterocyclization of 1,2-phenylenediamine with PhCHO in MeCN contg. aq. H2O2 and ceric ammonium nitrat... Stereoselective preparation of dienol phosphates from a,b-ethylenic aldehydes. [作者：Cahiez, Gerard;Habiak, Vanessa;Gager, Olivier;,期刊：Journal of Organic Chemistry, 页码：6871-6872 , 文章类型： 研究论文，,卷期：2008年73-17] (Organometallic and Organometalloidal Compounds) Section Stereoselective enolization of a,b-unsatd. aldehydes RCH:CHCHO by tBuOK/N-methylpyrrolidone (NMP) followed by phosphorylation by phosphorochloridate ClP(O)(OEt)2 g... An application of borane as a protecting group for pyridine. [作者：Zajac, Matthew A.;,期刊：Journal of Organic Chemistry, 页码：6899-6901 , 文章类型： 研究论文，,卷期：2008年73-17] Efforts to couple compd. I with 2-(3-bromopropylamino)pyridine employing base mediation are problematic due to the formation of 3,4-dihydro-2H-pyrido[1,2-a]pyrimidine. To circumvent this issue, 2-(3-bromopropylamino)pyr... Sulfur-Directed Enantioselective Synthesis of Functionalized Dihydropyrans. [作者：Fernandez de la Pradilla, Roberto;Tortosa, Mariola;Lwoff, Nadia;del Aguila, Miguel A.;Viso, Alma;,期刊：Journal of Organic Chemistry, 页码：6716-6727 , 文章类型： 研究论文，,卷期：2008年73-17] The highly selective base-promoted cyclization of enantiopure sulfinyl dienols affords allylic sulfinyl dihydropyrans. The scope of this methodol., including the prepn. of seven-membered rings, was studied in depth. Th... Superacid-Promoted Reactions of a-Keto amides and Related Systems. [作者：Sai, Kiran Kumar Solingapuram;Esteves, Pierre M.;Tanoue da Penha, Eduardo;Klumpp, Douglas A.;,期刊：Journal of Organic Chemistry, 页码：6506-6512 , 文章类型： 研究论文，,卷期：2008年73-17] The superacid-promoted reactions of a-hydroxy and a-keto amides was studied. Ionization of these compds. leads to varied aryl-substituted oxyindole products. In some cases, electrocyclization can lead to substituted fl... An efficient method for the synthesis of vinylbromohydrin and vinylbromoalkoxy derivatives and cyclocarbonylation of a-allenic alcohols catalyzed by palladium chloride. [作者：Li, Wei;Shi, Min;,期刊：Journal of Organic Chemistry, 页码：6698-6705 , 文章类型： 研究论文，,卷期：2008年73-17] Vinylidenecyclopropanes undergo hydrobromination or alkoxybromination in the presence of N-bromosuccinimide and water or alcs. to give the corresponding vinylbromohydrin and vinylbromoalkoxy derivs. in moderate to excell... An Improved Asymmetric Synthesis of Malyngamide U and Its 2'-Epimer. [作者：Feng, Jian-Peng;Shi, Zi-Fa;Li, Yang;Zhang, Jun-Tao;Qi, Xian-Liang;Chen, Jie;Cao, Xiao-Ping;,期刊：Journal of Organic Chemistry, 页码：6873-6876 , 文章类型： 研究论文，,卷期：2008年73-17] An accelerated and improved asym. synthesis of malyngamide U (I) and its 2'-epimer was accomplished from readily available n-hexanal, ethanolamine and (R)-(-)-carvone. The key steps involved a Johnson-Claisen rearrangem... Nucleophilic addition of phenol derivatives to methyl 1-nitrocyclopropanecarboxylates. [作者：Lifchits, Olga;Alberico, Dino;Zakharian, Irina;Charette, Andre B.;,期刊：Journal of Organic Chemistry, 页码：6838-6840 , 文章类型： 研究论文，,卷期：2008年73-17] Nucleophilic ring opening of Me 1-nitrocyclopropanecarboxylates by phenol derivs. in the presence of Cs2CO3 is described. The reaction tolerates a variety of substituents on both the arom. alc. and the cyclopropane and ...