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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56条记录   Stereoselective Synthesis of a-Glycosyl Phosphites and Phosphoramidites via O-Selective Glycosylation of H-Phosphonate Derivatives. [作者：Matsumura, Fumiko;Oka, Natsuhisa;Wada, Takeshi;,期刊：Organic Letters, 页码：5297-5300 , 文章类型： 研究论文，,卷期：2008年10-22] A highly stereo- and chemoselective glycosylation of H-phosphonate derivs. with glycosyl iodides was discovered as a reverse reaction of the formation of a glycosyl iodide from a glycosyl phosphite and I- under mild acid... A Short, Scalable Synthesis of the Carbocyclic Core of the Anti-Angiogenic Cortistatins from (+)-Estrone by B-Ring Expansion. [作者：Kurti, Laszlo;Czako, Barbara;Corey, E. J.;,期刊：Organic Letters, 页码：5247-5250 , 文章类型： 研究论文，,卷期：2008年10-22] A rapid and scalable synthesis of the carbocyclic core of the potent antiangiogenic natural products, the cortistatins, is presented starting from readily available (+)-estrone. Key steps include a regio- and stereosele... Total Synthesis of (?-Lysergic Acid, Lysergol, and Isolysergol by Palladium-Catalyzed Domino Cyclization of Amino Allenes Bearing a Bromoindolyl Group. [作者：Inuki, Shinsuke;Oishi, Shinya;Fujii, Nobutaka;Ohno, Hiroaki;,期刊：Organic Letters, 页码：5239-5242 , 文章类型： 研究论文，,卷期：2008年10-22] ergot alkaloids based on palladium-catalyzed domino cyclization of amino allenes was investigated. With this bis-cyclization as the key step, total synthesis of (?-lysergic acid I (R8a = H, R8b = CO2H), (?-lysergol I (R... Controlling and Measuring the Equilibration of Dynamic Combinatorial Libraries of Imines. [作者：Ziach, Krzysztof;Jurczak, Janusz;,期刊：Organic Letters, 页码：5159-5162 , 文章类型： 研究论文，,卷期：2008年10-22] Imine formation is one of the most powerful methods for the construction of azamacrocycles, esp. when combined with Dynamic Combinatorial Chem. In this article, the possibility to control the reversible imination/macroc... Air-Stable and Phosphine-Free Iridium Catalysts for Highly Enantioselective Hydrogenation of Quinoline Derivatives. [作者：Li, Zhi-Wei;Wang, Tian-Li;He, Yan-Mei;Wang, Zhi-Jian;Fan, Qing-Hua;Pan, Jie;Xu, Li-Jin;,期刊：Organic Letters, 页码：5265-5268 , 文章类型： 研究论文，,卷期：2008年10-22] Enantioselective hydrogenation of quinoline derivs. catalyzed by phosphine-free chiral cationic Cp*Ir(OTf)(CF3TsDPEN) complex (CF3TsDPEN = N-(p-trifluoromethylbenzenesulfonyl)-1,2-diphenylethylene-diamine) afforded the 1... RuCl3-Catalyzed Alkenylation of Aromatic C-H Bonds with Terminal Alkynes. [作者：Cheng, Kai;Yao, Bangben;Zhao, Jinlong;Zhang, Yuhong;,期刊：Organic Letters, 页码：5309-5312 , 文章类型： 研究论文，,卷期：2008年10-22] RuCl3-catalyzed regio- and/or stereoselective alkenylation reactions of a variety of arylpyridines proceeded efficiently with terminal alkynes or allylic compds. in the presence of benzoyl peroxide or benzoic acid. Cu(I)-Catalyzed Hetero-Diels-Alder Reaction between Danishefsky-Type Siloxy Dienes and Ketones. [作者：Chen, I.-Hon;Oisaki, Kounosuke;Kanai, Motomu;Shibasaki, Masakatsu;,期刊：Organic Letters, 页码：5151-5154 , 文章类型： 研究论文，,卷期：2008年10-22] A general catalytic method for the hetero-Diels-Alder reaction between Danishefsky-type siloxy dienes and ketones was developed. Optimum results were produced with a catalyst generated from CuOTf?C6H6)1/2 and TBAT with ... Syntheses of Substituted 3-Methyleneisoindolin-1-ones By a Palladium-Catalyzed Sonogashira Coupling-Carbonylation-Hydroamination Sequence in Phosphonium Salt-Based Ionic liquids. [作者：Cao, Hong;McNamee, Laura;Alper, Howard;,期刊：Organic Letters, 页码：5281-5284 , 文章类型： 研究论文，,卷期：2008年10-22] carbonylation-hydroamination reaction of 1-halo-2-alkynylbenzene with amines afforded the substituted 3-methyleneisoindolin-1-ones, e.g., I, in good yields and high selectivities in favor of the Z-isomers. The target mo... Synthesis of the 1,5-Polyol System Based on Cross Metathesis: Structure Revision of Amphidinol 3. [作者：Oishi, Tohru;Kanemoto, Mitsunori;Swasono, Respati;Matsumori, Nobuaki;Murata, Michio;,期刊：Organic Letters, 页码：5203-5206 , 文章类型： 研究论文，,卷期：2008年10-22] Synthesis of a 1,5-polyol system corresponding to the C1-C14 unit of amphidinol 3 (AM3) and its diastereomers was achieved via chemoselective cross metathesis as the key step. Comparison of 13C NMR data of the synthetic... A Facile Synthesis of Elusive Alkoxy-Substituted Hexa-peri-hexabenzocoronene. [作者：Wadumethrige, Shriya H.;Rathore, Rajendra;,期刊：Organic Letters, 页码：5139-5142 , 文章类型： 研究论文，,卷期：2008年10-22] Oxidative cyclodehydrogenation of hexakis(4-alkoxyphenyl)benzene produces a quant. yield of an indenofluorene deriv. I (R = Me, n-hexyl) rather than the expected alkoxy-substituted hexa-peri-hexabenzocoronene (HBC) II (R... One-pot tandem decarboxylative allylation-Heck cyclization of allyl diphenylglycinate imines: rapid access to polyfunctionalized 1-aminoindanes. [作者：Fields, Wendy H.;Khan, Ali K.;Sabat, Michal;Chruma, Jason J.;,期刊：Organic Letters, 页码：5131-5134 , 文章类型： 研究论文，,卷期：2008年10-22] corresponding allyl diphenylglycinate imines employing a "one-pot" palladium-catalyzed decarboxylative allylation-Heck cyclization cascade. Variation of both the aryl and allyl moieties led to a diverse range of polycyc... Resin-Immobilized CuO and Cu Nanocomposites for Alcohol Oxidation. [作者：Pande, Surojit;Saha, Arindam;Jana, Subhra;Sarkar, Sougata;Basu, Mrinmoyee;Pradhan, Mukul;Sinha, Arun Kumar;Saha, Sandip;Pal, Anjali;Pal, Tarasankar;,期刊：Organic Letters, 页码：5179-5181 , 文章类型： 研究论文，,卷期：2008年10-22] Resin immobilized stable, spherical CuO nanoparticles prepd. in the presence of cyclodextrin (CD) act as catalysts for liq. phase alc. oxidn. in air. The catalytic activity of the CuO nanocomposites and its green chem. ... Highly Enantioselective Aza-Henry Reaction of Ketoimines Catalyzed by Chiral N,N'-Dioxide-Copper(I) Complexes. [作者：Tan, Cheng;Liu, Xiaohua;Wang, Liwei;Wang, Jun;Feng, Xiaoming;,期刊：Organic Letters, 页码：5305-5308 , 文章类型： 研究论文，,卷期：2008年10-22] The first example of catalytic enantioselective aza-Henry reaction of ketoimines has been realized using a simple chiral N,N'-dioxide-Cu(I) complex as catalyst. It performs well over a range of substrates to give the co... Highly Selective a-Acylvinyl Anion Additions to Imines. [作者：Reynolds, Troy E.;Binkley, Michael S.;Scheidt, Karl A.;,期刊：Organic Letters, 页码：5227-5230 , 文章类型： 研究论文，,卷期：2008年10-22] a-Hydroxypropargylsilanes undergo rearrangement to form reactive lithium allenolates. The resulting a-acylvinyl anion equiv. undergo highly selective addns. to N-tert-butanesulfinyl imines generating b-substituted aza-M... Diversity-Oriented Synthesis of Fused Pyran g-Lactones via an Efficient Pd-Thiourea-Catalyzed Alkoxycarbonylative Annulation. [作者：Li, Zhengtao;Gao, Yingxiang;Jiao, Zhaodong;Wu, Na;Wang, David Zhigang;Yang, Zhen;,期刊：Organic Letters, 页码：5163-5166 , 文章类型： 研究论文，,卷期：2008年10-22] We report herein a diversity-oriented synthesis of a range of fused pyran-g-lactones, e.g., I, that was effected through a versatile Pd-thiourea complex-catalyzed intramol. alkoxycarbonylative annulation of ene-diols, e.... Palladium-catalyzed sequential carbon-carbon bond cleavage/formation producing arylated benzolactones. [作者：Matsuda, Takanori;Shigeno, Masanori;Murakami, Masahiro;,期刊：Organic Letters, 页码：5219-5221 , 文章类型： 研究论文，,卷期：2008年10-22] 3-(2-Hydroxyphenyl)cyclobutanones react with aryl bromides in the presence of palladium catalysts to afford 4-arylmethyl-3,4-dihydrocoumarins in high yields through a sequence involving carbon-carbon bond cleavage and fo...