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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38条记录   Carbanionic Friedel-Crafts Equivalents. Regioselective Directed Ortho and Remote Metalation-C-N Cross Coupling Routes to Acridones and Dibenzo[b,f]azepinones. [作者：MacNeil, Stephen L.;Gray, Matthew;Gusev, Dmitry G.;Briggs, Laura E.;Snieckus, Victor;,期刊：Journal of Organic Chemistry, 页码：9710-9719 , 文章类型： 研究论文，,卷期：2008年73-24] Carbanion-mediated general regioselective routes to acridones, e.g., I, and dibenzo[b,f]azepinones, e.g., II, are described. Buchwald-Hartwig C-N cross coupling of o-halo benzamides with anilines, followed by simple N-m... Diastereoselective Bromination of Compounds Bearing a Cyclohex-3-enol Moiety: Application to the Enantioselective Synthesis of (1R)-cis-Deltamethrinic Acid. [作者：Krief, Alain;Jeanmart, Stephane;Kremer, Adrian;,期刊：Journal of Organic Chemistry, 页码：9795-9797 , 文章类型： 研究论文，,卷期：2008年73-24] (1R)-cis-Chrysanthemic acid I (R = Me) and the title acid I (R = Br) were prepd. in a few steps with complete control of the relative and abs. stereochem. Some mechanistic aspect of the addn. of bromine to the double bo... Transition-Metal-Free Indirect Friedlander Synthesis of Quinolines from Alcohols. [作者：Martinez, Ricardo;Ramon, Diego J.;Yus, Miguel;,期刊：Journal of Organic Chemistry, 页码：9778-9780 , 文章类型： 研究论文，,卷期：2008年73-24] The synthesis of polysubstituted quinolines, e.g., I, can be easily and greenly accomplished by the direct reaction between the corresponding 2-aminobenzylic alc. deriv. and either a ketone or alc. in the presence of a b... Total Synthesis of Epothilones B and D: Stannane Equivalents for b-Keto Ester Dianions. [作者：Keck, Gary E.;Giles, Robert L.;Cee, Victor J.;Wager, Carrie A.;Yu, Tao;Kraft, Matthew B.;,期刊：Journal of Organic Chemistry, 页码：9675-9691 , 文章类型： 研究论文，,卷期：2008年73-24] Studies leading to a total synthesis of epothilones B (I) and D (II) are described. The overall synthetic plan was based on late-stage fragment assembly of two segments representing C1-C9 and C10-C21 of the structure. ... On the Racemization of Chiral Imidazolines. [作者：Busacca, Carl A.;Bartholomeyzik, Teresa;Cheekoori, Sreedhar;Grinberg, Nelu;Lee, Heewon;Ma, Shengli;Saha, Anjan;Shen, Sherry;Senanayake, Chris H.;,期刊：Journal of Organic Chemistry, 页码：9756-9761 , 文章类型： 研究论文，,卷期：2008年73-24] Racemization of chiral imidazolines with base has been studied for the first time following an unexpected finding in the synthesis of chiral imidazoline ligands. Amine bases do not cause racemization. Strong inorg. bas... Using a Two-Step Hydride Transfer To Achieve 1,4-Reduction in the Catalytic Hydrogenation of an Acyl Pyridinium Cation. [作者：Shaw, Anthony P.;Ryland, Bradford L.;Franklin, Mary J.;Norton, Jack R.;Chen, Judy Y.-C.;Hall, Michelle Lynn;,期刊：Journal of Organic Chemistry, 页码：9668-9674 , 文章类型： 研究论文，,卷期：2008年73-24] The stoichiometric redn. of N-carbophenoxypyridinium tetraphenylborate (6) by CpRu(P-P)H (Cp = h5-cyclopentadienyl; P-P = dppe, 1,2-bis(diphenylphosphino)ethane, or dppf, 1,1'-bis(diphenylphosphino)ferrocene), and Cp*Ru(... Efficient Chemical Synthesis of a Dodecasaccharidyl Lipomannan Component of Mycobacterial Lipoarabinomannan. [作者：Fraser-Reid, Bert;Chaudhuri, Siddhartha Ray;Jayaprakash, K. N.;Lu, Jun;Ramamurty, Changalvala V. S.;,期刊：Journal of Organic Chemistry, 页码：9732-9743 , 文章类型： 研究论文，,卷期：2008年73-24] Lipomannan (LM) is one of the domains of lipoarabinomannan (LAM) glycolipids, the latter being one of several cell surface org. mols. that fortify mycobacterial species against external attack. Some members of mycobacte... Heterotrimeric Coiled Coils with Core Residue Urea Side Chains. [作者：Diss, Maria L.;Kennan, Alan J.;,期刊：Journal of Organic Chemistry, 页码：9752-9755 , 文章类型： 研究论文，,卷期：2008年73-24] The authors report several coiled coil heterotrimers with varying core residue buried polar groups, all with Tm values > 43? Introduction of new synthetic side chain structures, including some terminating in monosubstit... Nucleophilic Carbene Catalyzed Synthesis of 1,2 Amino Alcohols Via Azidation of Epoxy Aldehydes. [作者：Vora, Harit U.;Moncecchi, Johannah R.;Epstein, Oleg;Rovis, Tomislav;,期刊：Journal of Organic Chemistry, 页码：9727-9731 , 文章类型： 研究论文，,卷期：2008年73-24] We report herein a nucleophilic carbene catalyzed redox azidation of epoxyaldehydes. The intermediate b-hydroxy acyl azides undergo thermal Curtius rearrangement followed by trapping with excess azide to form carbamoyl ... Asymmetric Synthesis of Acyclic 1,3-Amino Alcohols by Reduction of N-Sulfinyl b-Amino Ketones. Formal Synthesis of (-)-Pinidinol and (+)- Epipinidinol. [作者：Davis, Franklin A.;Gaspari, Paul M.;Nolt, Brad;Xu, Peng;,期刊：Journal of Organic Chemistry, 页码：9619-9626 , 文章类型： 研究论文，,卷期：2008年73-24] Stereoselective redn. of acyclic N-sulfinyl b-amino ketones, e.g. I, with (LiEt3BH) and Li(tert-BuO)3AlH, resp., gave anti- and syn-1,3-amino alcs., e.g. II, with excellent selectivity. A formal asym. synthesis of the h... Diastereoselective, Three-Component Cascade Synthesis of Tetrahydrofurans and Tetrahydropyrans Employing the Tandem Mukaiyama Aldol-Lactonization Process. [作者：Mitchell, T. Andrew;Zhao, Cunxiang;Romo, Daniel;,期刊：Journal of Organic Chemistry, 页码：9544-9551 , 文章类型： 研究论文，,卷期：2008年73-24] A full account of studies leading to the development of a cascade sequence that generates as many as two C-C bonds, one C-O bond, and three new stereocenters providing substituted tetrahydrofurans (THFs) from simple g-ke... Total Synthesis of Spirotenuipesines A and B. [作者：Dai, Mingji;Krauss, Isaac J.;Danishefsky, Samuel J.;,期刊：Journal of Organic Chemistry, 页码：9576-9583 , 文章类型： 研究论文，,卷期：2008年73-24] Spirotenuipesines A and B, I and II, resp., isolated from the entomopathogenic fungus Paecilomyces tenuipes by Oshima and co-workers, have been synthesized. The synthesis features the highly stereoselective construction... Design, Synthesis, and Biological Evaluation of Novel C14-C3'BzN-Linked Macrocyclic Taxoids. [作者：Sun, Liang;Geng, Xudong;Geney, Raphael;Li, Yuan;Simmerling, Carlos;Li, Zhong;Lauher, Joseph W.;Xia, Shujun;Horwitz, Susan B.;Veith, Jean M.;Pera, Paula;Bernacki, Ralph J.;Ojima, Iwao;,期刊：Journal of Organic Chemistry, 页码：9584-9593 , 文章类型： 研究论文，,卷期：2008年73-24] Novel macrocyclic paclitaxel congeners were designed to mimic the bioactive conformation of paclitaxel. Computational anal. of the "REDOR-Taxol" structure revealed that this structure could be rigidified by connecting t... The Endocyclic Restriction Test: The Geometries of Nucleophilic Substitutions at Sulfur(VI) and Sulfur(II). [作者：Jarboe, Stephen G.;Terrazas, Michael S.;Beak, Peter;,期刊：Journal of Organic Chemistry, 页码：9627-9632 , 文章类型： 研究论文，,卷期：2008年73-24] The trajectories for nucleophilic substitutions at sulfur(VI) and sulfur(II) have been investigated by the endocyclic restriction test. On the basis of double-labeling expts., the sulfur(VI) transfer in the conversion o... New Gas-Phase Cascade Reactions of Stabilized Phosphorus Ylides Leading to Ring-Fused Indoles and to Quinolines. [作者：Aitken, R. Alan;Murray, Lorna;,期刊：Journal of Organic Chemistry, 页码：9781-9783 , 文章类型： 研究论文，,卷期：2008年73-24] Gas-phase cyclization processes of stabilized phosphorus ylides bearing a suitably substituted 2-aminophenyl group lead efficiently either to 3-substituted quinolines, I (R = Et, Ph), or benzo[c]carbazole and heterocycli... Intramolecular Ene Reaction of a Chiral Bicyclic Lactam. [作者：Resek, James E.;,期刊：Journal of Organic Chemistry, 页码：9792-9794 , 文章类型： 研究论文，,卷期：2008年73-24] The prepn. of bicyclic lactam I employing an acetoacetate-based synthesis of 1,4-ketoacid II is described. The lactam I was shown to undergo a thermal ene reaction at 280-300 癈 to afford tricycle III. Redn. of the ene p...