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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80条记录   Cross-Coupling Reactions [作者：BOLM CARSTEN,期刊：Organic Letters, 页码：2925-2928 , 文章类型： Editorial Material，,卷期：2012年14-12] Intramolecular Condensation via an o-Quinone Methide: Total Synthesis of (+/-)-Heliol [作者：GREEN JASON C; BROWN ERIC R; PETTUS THOMAS R R,期刊：Organic Letters, 页码：2929-2931 , 文章类型： Article，,卷期：2012年14-12] An acid-catalyzed intramolecular [4 + 2] cycloaddition of a non-natural bisabolene is reported. The key cyclocondensation was developed to access cyclic sesquiterpenes from linear phenolic precursors by generating a reac... Highly Enantioselective Synthesis of Chiral Allenes by Sequential Creation of Stereogenic Center and Chirality Transfer in a Single Pot Operation [作者：PERIASAMY MARIAPPAN; SANJEEVAKUMAR NALLURI; DALAI MANASI; GURUBRAHAMAM RAMANI; REDDY POLIRNERA OBULA,期刊：Organic Letters, 页码：2932-2935 , 文章类型： Article，,卷期：2012年14-12] Chiral allenes are readily accessed in a single pot operation in the reaction of terminal alkynes, aldehydes, chiral secondary amines, and zinc halides in good yields (up to 77% yield) and excellent enantioselectivities ... Diacetoxyiodobenzene Mediated One-Pot Synthesis of Diverse Carboxamides from Aldehydes [作者：PRASAD VIRENDRA; KALE RAJU R; MISHRA BHUWAN B; KUMAR DHANANJAY; TIWARI VINOD K,期刊：Organic Letters, 页码：2936-2939 , 文章类型： Article，,卷期：2012年14-12] A novel, one-pot, and highly facile protocol has been devised for an easy access of a series of novel glycosyl carboxamides from aldehydes using diacetoxyiodobenzene in the presence of ionic liquid at ambient temperature... Manganese(III) Acetate Mediated Oxidative Radical Cyclizations. Toward Vicinal All-Carbon Quaternary Stereocenters [作者：LOGAN ANGUS W J; PARKER JEREMY S; HALLSIDE MICHEL S; BURTON JONATHAN W,期刊：Organic Letters, 页码：2940-2943 , 文章类型： Article，,卷期：2012年14-12] Manganese(III) acetate mediated oxidative radical cyclizations have been used to synthesize a range of densely functionalized and sterically congested cyclopentane-lactones. A number of the resulting lactones contain vic... Improved Protocol for Indoline Synthesis via Palladium-Catalyzed Intramolecular C(sp(2))-H Amination [作者：HE GANG; LU CHENGXI; ZHAO YINGSHENG; NACK WILLIAM A; CHEN GONG,期刊：Organic Letters, 页码：2944-2947 , 文章类型： Article，,卷期：2012年14-12] An efficient method has been developed for the synthesis of indoline compounds from picolinamide (PA)-protected beta-arylethylamine substrates via palladium-catalyzed intramolecular amination of ortho-C(sp(2))-H bonds. T... Palladium-Catalyzed Alkenylation and Alkynylation of ortho-C(sp(2))-H Bonds of Benzylamine Picolinamides [作者：ZHAO YINGSHENG; HE GANG; NACK WILLIAM A; CHEN GONG,期刊：Organic Letters, 页码：2948-2951 , 文章类型： Article，,卷期：2012年14-12] An efficient functionalization of ortho-C(sp(2))-H bonds of picolinamide (PA)-protected benzylamine substrates with a range of vinyl iodides as well as acetylenic bromide is reported. ortho-Phenyl benzoic acid (oPBA) act... Cross Metathesis Assisted Solid-Phase Synthesis of Glycopeptoids [作者：KHAN SHARAF NAWAZ; KIM ARIM; GRUBBS ROBERT H; KWON YONGUK,期刊：Organic Letters, 页码：2952-2955 , 文章类型： Article，,卷期：2012年14-12] A solid-phase synthesis of glycopeptoids was explored through olefin cross metathesis (CM). Peptoids and sugar derivatives with appropriate olefin moieties were coupled in the presence of an olefin metathesis catalyst to... Cyclization of 1,6-Enynes Catalyzed by Gold Nanoparticles Supported on TiO2: Significant Changes in Selectivity and Mechanism, as Compared to Homogeneous Au-Catalysis [作者：GRYPARIS CHARIS; EFE CHRISTINA; RAPTIS CHRISTOS; LYKAKIS IOANNIS N; STRATAKIS MANOLIS,期刊：Organic Letters, 页码：2956-2959 , 文章类型： Article，,卷期：2012年14-12] Gold nanoparticles supported on TiO2 (1.2 mol %) catalyze, for the first time under heterogeneous conditions, the cycloisomerization of a series of 1,6-enynes in high yields. In several cases, the product selectivity dif... Enantioselective Synthesis of Imidazolines with Quaternary Stereocenters by Organocatalytic Reaction of N-(Heteroarenesulfonyl)imines with Isocyanoacetates [作者：NAKAMURA SHUICHI; MAENO YURI; OHARA MUTSUYO; YAMAMURA AKIKO; FUNAHASHI YASUHIRO; SHIBATA NORIO,期刊：Organic Letters, 页码：2960-2963 , 文章类型： Article，,卷期：2012年14-12] An organocatalytic enantioselective Mannich-type reaction of isocyanoacetate with N-sulfonylimines catalyzed by chiral thioureas derived from quinine yielded 2-imidazolines with high diastereo- and enantioselectivities (... Stepwise Cyanation of Naphthalene Diimide for n-Channel Field-Effect Transistors [作者：CHANG JINGJING; YE QUN; HUANG KUOWEI; ZHANG JIE; CHEN ZHIKUAN; WU JISHAN; CHI CHUNYAN,期刊：Organic Letters, 页码：2964-2967 , 文章类型： Article，,卷期：2012年14-12] Stepwise cyanation of tetrabromonaphthalenediimide (NDI) 1 gave a series of cyanated NDIs 2-5 with the monocyanated NDI 2 and dicyanated NDI 3 isolated. The tri- and tetracyano- NDIs 4 and 5 show intrinsic instability to... Triazole Linked Picolylimine Conjugate of Calix[6]arene as a Sequential Sensor for La3+ Followed by F- [作者：MUMMIDIVARAPU V V SREENIVASU; NEHRA ANITA; HINGE VIJAYA KUMAR; RAO CHEBROLU P,期刊：Organic Letters, 页码：2968-2971 , 文章类型： Article，,卷期：2012年14-12] A new 1,3,5-tris-triazole linked picolylimine conjugate of calix[6]arene (L) has been shown to be selective toward La3+ by turn on fluorescence with similar to 70-fold enhancement and emits blue, with a minimal detection... Enantioselective Diels-Alder Reaction of alpha-(Acylthio)acroleins: A New Entry to Sulfur-Containing Chiral Quaternary Carbons [作者：SAKAKURA AKIRA; YAMADA HIROKI; ISHIHARA KAZUAKI,期刊：Organic Letters, 页码：2972-2975 , 文章类型： Article，,卷期：2012年14-12] A catalytic and enantioselective Diels-Alder reaction of alpha-(carbamoylthio)acroleins induced by an organoammonium salt of chiral triamine is described. alpha-(Carbamoylthio)acroleins are designed and synthesized as ne... Synthesis of Highly Functionalized 9,10-Phenanthrenequinones by Oxidative Coupling Using MoCl5 [作者：TROSIEN SIMON; WALDVOGEL SIEGFRIED R,期刊：Organic Letters, 页码：2976-2979 , 文章类型： Article，,卷期：2012年14-12] The strong oxidative power of molybdenum pentachloride gives rise to an efficient oxidative C-C bond formation of benzil derivatives to the corresponding 9,10-phenanthrenequinones. A highly complementary method to previo... Recognition of Hg2+ Ion through Restricted Imine Isomerization: Crystallographic Evidence and Imaging in Live Cells [作者：MANDAL AMAL KUMAR; SURESH MOORTHY; DAS PRIYADIP; SURESH E; BAIDYA MITHU; GHOSH SUDIP K; DAS AMITAVA,期刊：Organic Letters, 页码：2980-2983 , 文章类型： Article，,卷期：2012年14-12] A newly synthesized imine-based receptor (L) showed remarkable specificity toward the Hg2+ ion in aqueous media over other metal ions. Coordination of L to Hg2+ induces a turn-on fluorescence response. This was explained... A Cell-Penetrating Ratiometric Nanoprobe for Intracellular Chloride [作者：BAU LUCA; SELVESTREL FRANCESCO; ARDUINI MARIA; ZAMPARO ILARIA; LODOVICHI CLAUDIA; MANCIN FABRIZIO,期刊：Organic Letters, 页码：2984-2987 , 文章类型： Article，,卷期：2012年14-12] NanoChlor, a nanoparticle-based fluorescent probe for chloride that is both ratiometric and capable of spontaneously penetrating neuronal cells at submillimolar concentrations, was designed and studied. NanoChlor is buil...