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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52条记录   Organocatalytic and Enantioselective Synthesis of b-(Hydroxyalkyl)-g-Butyrolactones. [作者：Hajra, Saumen;Giri, Aswini Kumar;,期刊：Journal of Organic Chemistry, 页码：3935-3937 , 文章类型： 研究论文，,卷期：2008年73-10] Organocatalytic cross-aldol reaction of Me 4-oxobutyrate and a variety of aldehydes RCHO (R = Me2CH, cyclohexyl, Ph, 4-O2NC6H4, 2-naphthyl, etc.) followed by redn. with NaBH4 has provided a one-pot, general and efficient... New Insight into Ni(II)-Catalyzed Cyclization Reactions of Propargylic Compounds with Soft Nucleophiles: Novel Indenes Formation. [作者：Gou, Fa-Rong;Bi, Hai-Peng;Guo, Li-Na;Guan, Zheng-Hui;Liu, Xue-Yuan;Liang, Yong-Min;,期刊：Journal of Organic Chemistry, 页码：3837-3841 , 文章类型： 研究论文，,卷期：2008年73-10] An advance in nickel(II)-catalyzed carboannulation reactions is disclosed. Highly substituted indene derivs. are readily prepd. in moderate to excellent yields under very mild reaction conditions in air via a nickel(II)... A Carbohydrate-Based Approach for the Total Synthesis of Aculeatin D and 6-epi-Aculeatin D. [作者：Ramana, C. V.;Srinivas, Burgula;,期刊：Journal of Organic Chemistry, 页码：3915-3918 , 文章类型： 研究论文，,卷期：2008年73-10] A concise approach for the total synthesis of aculeatin D (I) and 6-epi-aculeatin D II employing differentially protected anti,anti-1,3,5-triol alkyne prepd. from a-D-glucoheptonic-g-lactone deriv. is documented. Phenol ... Total Synthesis and Determination of Relative and Absolute Configuration of Multiplolide A. [作者：Ramana, C. V.;Khaladkar, Tushar P.;Chatterjee, Soumitra;Gurjar, Mukund K.;,期刊：Journal of Organic Chemistry, 页码：3817-3822 , 文章类型： 研究论文，,卷期：2008年73-10] A flexible approach for total syntheses of possible multiplolide A diastereomers I establishing the relative and abs. configuration is documented. The adopted strategy features ring-closing metathesis (RCM) as the key r... Efficient Synthesis of 3-Iodoindenes via Lewis-Acid Catalyzed Friedel-Crafts Cyclization of Iodinated Allylic Alcohols. [作者：Zhou, Xiaobo;Zhang, Huimin;Xie, Xin;Li, Yanzhong;,期刊：Journal of Organic Chemistry, 页码：3958-3960 , 文章类型： 研究论文，,卷期：2008年73-10] A convenient BF3譋t2O-catalyzed Friedel-Crafts cyclization of iodinated allylic alcs. is reported. The present reaction provides an efficient protocol to 3-iodo-1H-indene derivs. in good to high yields under mild conditi... CeCl3?H2O: An Effective Additive in Ru-Catalyzed Enantioselective Hydrogenation of Aromatic a-Ketoesters. [作者：Meng, Qinghua;Sun, Yanhui;Ratovelomanana-Vidal, Virginie;Genet, Jean Pierre;Zhang, Zhaoguo;,期刊：Journal of Organic Chemistry, 页码：3842-3847 , 文章类型： 研究论文，,卷期：2008年73-10] In the presence of catalytic amts. of CeCl3?H2O, [RuCl(benzene)(S)-SunPhos]Cl is a highly effective catalyst for the asym. hydrogenation of arom. a-ketoesters. A variety of Et a-hydroxy-a-arylacetates, e.g., I, have bee... Indium-Copper and Indium-Silver Mediated Barbier-Grignard-Type Alkylation Reaction of Aldehydes Using Unactivated Alkyl Halides in Water. [作者：Shen, Zhi-Liang;Yeo, Yan-Lin;Loh, Teck-Peng;,期刊：Journal of Organic Chemistry, 页码：3922-3924 , 文章类型： 研究论文，,卷期：2008年73-10] An efficient method has been developed for the Barbier-Grignard-type alkylation reaction of aldehydes (including aliph. version) using unactivated alkyl halides in water in the presence of an In/CuI/I2 or In/AgI/I2 syste... Copper-Catalyzed Coupling of Tertiary Aliphatic Amines with Terminal Alkynes to Propargylamines via C-H Activation. [作者：Niu, Mingyu;Yin, Zhengming;Fu, Hua;Jiang, Yuyang;Zhao, Yufen;,期刊：Journal of Organic Chemistry, 页码：3961-3963 , 文章类型： 研究论文，,卷期：2008年73-10] We have developed a convenient and efficient method for coupling of tertiary aliph. amines with terminal alkynes to propargylamines, e.g. PhCH2NMeCH2CYCPh, via C-H activation. The protocol uses CuBr as the catalyst, NBS... Scalable Preparation of Both Enantiomers of 2-(1-Hydroxy-2-oxocyclohexyl)acetic Acid. [作者：Vamos, Mitchell;Kobayashi, Yoshihisa;,期刊：Journal of Organic Chemistry, 页码：3938-3941 , 文章类型： 研究论文，,卷期：2008年73-10] The efficient, scalable prepn. of both enantiomers of 2-(1-hydroxy-2-oxocyclohexyl)acetic acid in enantiomerically pure form for the (S)-isomer and in 27% (7 steps) for the (R)-isomer from cyclohexanone is reported. CrCl2-Promoted Stereospecific and Stereoselective Alkyl- and Silylcyclopropanation of a,b-Unsaturated Amides. [作者：Concellon, Josel M.;Rodriguez-Solla, Humberto;Mejica, Carmen;Blanco, Elena G.;Garcia-Granda, Santiago;Diaz, M. Rosario;,期刊：Journal of Organic Chemistry, 页码：3828-3836 , 文章类型： 研究论文，,卷期：2008年73-10] a,b-unsatd. amides is described. These reactions can be carried out on (E)- or (Z)-a,b-enamides in which the C-C double bond is di-, or trisubstituted. This process takes place with total stereospecificity and the new ... Physical Organic Chemistry on the Brain. [作者：Dougherty, Dennis A.;,期刊：Journal of Organic Chemistry, 页码：3667-3673 , 文章类型： 研究论文，,卷期：2008年73-10] mols. of neuroscience are considerable. Most targets are complex integral membrane proteins that are not amenable to direct structural characterization. However, by combining the tools of org. synthesis, mol. biol., an... Preparation of Nonsymmetrically Substituted Stilbenes in a One-Pot Two-Step Heck Strategy Using Ethene As a Reagent. [作者：Kormos, Chad M.;Leadbeater, Nicholas E.;,期刊：Journal of Organic Chemistry, 页码：3854-3858 , 文章类型： 研究论文，,卷期：2008年73-10] 47 A strategy for the prepn. of nonsym. substituted stilbenes using a one-pot two-step double Heck strategy is presented. First a protocol is developed for the selective prepn. of a range of styrenes using ethene as the... Synthesis, structure, and metal complexation behavior of a new type of functionalized chiral phenanthroline derivative. [作者：Plummer, Jacob M.;Weitgenant, Jeremy A.;Noll, Bruce C.;Lauher, Joseph W.;Wiest, Olaf;Helquist, Paul;,期刊：Journal of Organic Chemistry, 页码：3911-3914 , 文章类型： 研究论文，,卷期：2008年73-10] SmI2 serves as an effective promoter for the coupling of 1,10-phenanthroline with an epoxide to generate a new class of chiral, functionalized ligands, e.g., I, that readily form complexes with metals. Structural studies... An Expedient Synthesis of Mellitic Triimides. [作者：Rose, Kathryn G.;Jaber, Dina A.;Gondo, Chenaimwoyo A.;Hamilton, Darren G.;,期刊：Journal of Organic Chemistry, 页码：3950-3953 , 文章类型： 研究论文，,卷期：2008年73-10] Heating of the solid ammonium salts obtained from treatment of mellitic acid with 3 equiv of a primary amine yields trisubstituted mellitic triimides, e.g., I, via dehydration and imide ring closure. This surprisingly s... Copper-Nitrenoid Formation and Transfer in Catalytic Olefin Aziridination Utilizing Chelating 2-Pyridylsulfonyl Moieties. [Erratum to document cited in CA148:426303]. [作者：Han, Hoon;Park, Seong Byeong;Kim, Sang Kyu;Chang, Sukbok;,期刊：Journal of Organic Chemistry, 页码：3974-3974 , 文章类型： 研究论文，,卷期：2008年73-10] On page 2862, in column 2, in Refs. 5a, 5b, and 5c, the name of "Bildeau" should be changed to "Bilodeau.". On page 2862, in column 2, in Ref. 5e, the name of "Saniere" should be changed to "Saniere.". On page 2866, in ... N,N'-Disubstituted Methylenediimidazolium Salts: A Versatile Guest for Various Macrocycles. [作者：Noujeim, Nadim;Leclercq, Loic;Schmitzer, Andreea R.;,期刊：Journal of Organic Chemistry, 页码：3784-3790 , 文章类型： 研究论文，,卷期：2008年73-10] N,N'-Disubstituted methylenediimidazolium salts allow the formation of flexible inclusion complexes with b-cyclodextrin, cucurbit[7]uril, tetrapropoxycalix[4]arene, and dibenzo-24-crown-8 ether. Due to the salt nature o...