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23条记录   Pd-Catalyzed C-C Cross-Coupling Reactions within a Thermoresponsive and pH-Responsive and Chelating Polymeric Hydrogel. [作者：Wang, Yao;Zhang, Jianzheng;Zhang, Wangqing;Zhang, Minchao;,期刊：Journal of Organic Chemistry, 页码：1923-1931 , 文章类型： 研究论文，,卷期：2009年74-5] A porous, thermoresponsive and pH-responsive, and chelating hydrogel of poly(N-isopropylacrylamide-2-[methacrylic acid 3-(bis-carboxymethylamino)-2-hydroxypropyl ester]) (PNIPAM-co-PMACHE) was evaluated as both reaction ... Synthesis of 2'-C-b-Methyl-2'-deoxyguanosine. [作者：Li, Nan-Sheng;Lu, Jun;Piccirilli, Joseph A.;,期刊：Journal of Organic Chemistry, 页码：2227-2230 , 文章类型： 研究论文，,卷期：2009年74-5] Two approaches for the synthesis of 2'-C-b-methyl-2'-deoxyguanosine I via 2'-radical deoxygenation are reported. One approach starts from 1,3,5-tri-O-benzoyl-a-D-ribofuranose and gives I in 11 steps with 9.7% overall yi... From D-Glucose to Enantiomerically Pure Cycloctanoses. The Glycosidase Inhibitory Capacity of Medium-Ring Carbasugars. [作者：Paquette, Leo A.;Moura-Letts, Gustavo;Wang, George Peng;,期刊：Journal of Organic Chemistry, 页码：2099-2107 , 文章类型： 研究论文，,卷期：2009年74-5] Exhaustive dihydroxylation of the pair of cyclooctadienols, which are available in enantiomerically pure form from D-glucose, resulted in the formation of two diastereomeric tetraols in each case. The difference in pola... Structure-Property Relationships of Stable Free Radicals: Verdazyls with Electron-Rich Aryl Substituents. [作者：Chemistruck, Victoria;Chambers, Dallas;Brook, David J. R.;,期刊：Journal of Organic Chemistry, 页码：1850-1857 , 文章类型： 研究论文，,卷期：2009年74-5] Substitution of the 3 position of 6-oxoverdazyl free radicals with electron-rich arylamines, phenols, and aryl ethers elicits changes in the UV-vis spectra and in the pKa of the aryl substituents consistent with the verd... Reduction of Benzophenones with SmI2. Post Electron Transfer Processes. [作者：Farran, Hani;Hoz, Shmaryahu;,期刊：Journal of Organic Chemistry, 页码：2075-2079 , 文章类型： 研究论文，,卷期：2009年74-5] The kinetics of the reaction of several substituted benzophenones with SmI2 in THF was studied by using stopped flow spectrometry. The electron transfer takes place during the dead time of mixing and for most derivs. it... Highly Efficient Formal Synthesis of Cephalotaxine, Using the Stevens Rearrangement-Acid Lactonization Sequence as A Key Transformation. [作者：Sun, Mo-ran;Lu, Hong-tao;Wang, Yan-zhi;Yang, Hua;Liu, Hong-min;,期刊：Journal of Organic Chemistry, 页码：2213-2216 , 文章类型： 研究论文，,卷期：2009年74-5] Cephalotaxine, the major alkaloid isolated from Cephalotaxus species, has attracted considerable attention due to the promising antitumor activity of several of its derivs. and its unique structural features. Herein we ... Copper(I)-Catalyzed Synthesis of Substituted 2-Mercapto Benzimidazoles. [作者：Murru, Siva;Patel, Bhisma K.;Le Bras, Jean;Muzart, Jacques;,期刊：Journal of Organic Chemistry, 页码：2217-2220 , 文章类型： 研究论文，,卷期：2009年74-5] An efficient method for the prepn. of various substituted 2-mercapto benzimidazoles from their corresponding thioureas has been developed. S-Alkylation of thioureas followed by Cu-catalyzed intramol. N-arylation furnish... Microwave-Assisted Synthesis of Novel (5-Nitropyridin-2-yl)alkyl and (5-Nitropyridin-3-yl)alkyl Carbamates. [作者：Henry, Christophe;Haupt, Andreas;Turner, Sean C.;,期刊：Journal of Organic Chemistry, 页码：1932-1938 , 文章类型： 研究论文，,卷期：2009年74-5] A straightforward approach to novel (5-nitropyridin-2-yl)alkyl and (5-nitropyridin-3-yl)alkyl carbamate building blocks, e.g., I (X= CH2, S), is presented. Their construction is achieved by condensation of N-carbamate a... Interplay between Intramolecular Resonance-Assisted Hydrogen Bonding and Local Aromaticity. II. 1,3-Dihydroxyaryl-2-aldehydes. [作者：Palusiak, Marcin;Simon, Silvia;Sola, Miquel;,期刊：Journal of Organic Chemistry, 页码：2059-2066 , 文章类型： 研究论文，,卷期：2009年74-5] The interplay between aromaticity and hydrogen bonding in 1,3-dihydroxyaryl-2-aldehydes is investigated by means of quantum-chem. calcns. The position of the extra ring formed by substituents interacting through the hyd... Phosphine-mediated [3+2]-cycloaddition reactions of ethyl 5,5-diarylpenta-2,3,4-trienoates with arylmethylidenemalononitriles and N-tosylimines. [作者：Guan, Xiao-Yang;Shi, Min;,期刊：Journal of Organic Chemistry, 页码：1977-1981 , 文章类型： 研究论文，,卷期：2009年74-5] Et 5,5-diarylpenta-2,3,4-trienoates were synthesized and utilized in the phosphine-mediated [3 + 2]-cycloaddn. reactions with arylmethylidenemalononitriles and N-tosylimines in the presence of tributylphosphine. These r... Bromonium Ion Induced Transannular Oxonium Ion Formation-Fragmentation in Model Obtusallene Systems and Structural Reassignment of Obtusallenes V-VII. [作者：Braddock, D. Christopher;Millan, David S.;Perez-Fuertes, Yolanda;Pouwer, Rebecca H.;Sheppard, Richard N.;Solanki, Savade;White, Andrew J. P.;,期刊：Journal of Organic Chemistry, 页码：1835-1841 , 文章类型： 研究论文，,卷期：2009年74-5] Ring-closing metathesis was used to construct the strained 11-membered ring of obtusallenes II (and IV). Bromonium ion induced transannular oxonium ion formation-fragmentation gave the macrocyclic carbon skeleton of obt... CuO Nanoparticles Catalyzed C-N, C-O, and C-S Cross-Coupling Reactions: Scope and Mechanism. [作者：Jammi, Suribabu;Sakthivel, Sekarpandi;Rout, Laxmidhar;Mukherjee, Tathagata;Mandal, Santu;Mitra, Raja;Saha, Prasenjit;Punniyamurthy, Tharmalingam;,期刊：Journal of Organic Chemistry, 页码：1971-1976 , 文章类型： 研究论文，,卷期：2009年74-5] CuO nanoparticles have been studied for C-N, C-O, and C-S bond formations via cross-coupling reactions of nitrogen, oxygen, and sulfur nucleophiles with aryl halides. Amides, amines, imidazoles, phenols, alcs. and thiol... Salicylaldehyde Azines as Fluorophores of Aggregation-Induced Emission Enhancement Characteristics. [作者：Tang, Weixin;Xiang, Yu;Tong, Aijun;,期刊：Journal of Organic Chemistry, 页码：2163-2166 , 文章类型： 研究论文，,卷期：2009年74-5] A series of salicylaldehyde azine derivs. were found to exhibit interesting aggregation-induced emission enhancement (AIEE) characteristics. In good solvent, all these compds. displayed very weak fluorescence, while str... p-Nitrophenolate: A Probe for Determining Acid Strength in Ionic Liquids. [作者：D'Anna, Francesca;La Marca, Sandra;Noto, Renato;,期刊：Journal of Organic Chemistry, 页码：1952-1956 , 文章类型： 研究论文，,卷期：2009年74-5] [Image omitted] In order to obtain an acidity scale in room-temp. ionic liq. solns., the protonation equil. of sodium p-nitrophenolate in [bm2i.m.][NTf2] and in [bmpyrr][NTf2], at 298 K, was studied by spectrophotometric... E-Z Isomerization and Aggregation Phenomena of Dithiafulvenes in CHCl3. [作者：Fracaroli, Alejandro M.;Granados, Alejandro M.;de Rossi, Rita H.;,期刊：Journal of Organic Chemistry, 页码：2114-2119 , 文章类型： 研究论文，,卷期：2009年74-5] The phys.-chem. properties of several 1,3-dithiafulvene (DTF) derivs. having a donor and acceptor group in the mol. were studied. The synthesis of these compds. produces selectively the E isomer, but when the compd. is ... Stability of Medium-Bridged Twisted Amides in Aqueous Solutions. [作者：Szostak, Michal;Yao, Lei;Aube, Jeffrey;,期刊：Journal of Organic Chemistry, 页码：1869-1875 , 文章类型： 研究论文，,卷期：2009年74-5] hypersensitive to hydrolysis, a feature that has stringently limited their utility in water. We have synthesized a series of bridged lactams that contain a twisted amide linkage but exhibit enhanced stability in aq. env...