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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400948条记录   Gas phase hydrogenolysis of methyl difluoroacetate to 1,1-difluoroethanol over Ru/C catalysts [作者：ZHENG SUZHEN; CAO XIAOYAN; ZHOU QIANG; WANG SHUHUA; HU GENGSHEN; LU JIQING; LUO MENGFEI; WANG YUEJUAN,期刊：Journal of Fluorine Chemistry, 页码：132-135 , 文章类型： Article，,卷期：2013年145-1] Ru/C catalysts were prepared by an impregnation method and their catalytic properties were tested for hydrogenolysis methyl difluoroacetate to difluoroethanol. The catalysts were characterized by X-ray powder diffraction... Toward the Synthesis of Phomoidride D [作者：MURPHY GRAHAM K; SHIRAHATA TATSUYA; HAMA NAOTO; BEDERMANN AARON; DONG PING; MCMAHON TRAVIS C; TWENTER BARRY M; SPIEGEL DAVID A; MCDONALD IVAR M; TANIGUCHI NOBUAKI; INOUE MUNENORI; WOOD JOHN L,期刊：Journal of Organic Chemistry, 页码：477-489 , 文章类型： Article，,卷期：2013年78-2] An efficient and highly stereoselective approach toward the phomoidride family of natural products is described. The carbocyclic core structure was assembled using a tandem phenolic oxidation/Diels-Alder cycloaddition an... A Kinetic Study on Nucleophilic Displacement Reactions of Aryl Benzenesulfonates with Potassium Ethoxide: Role of K+ Ion and Reaction Mechanism Deduced from Analyses of LFERs and Activation Parameters [作者：UM IKHWAN; KANG JISUN; SHIN YOUNGHEE; BUNCEL ERWIN,期刊：Journal of Organic Chemistry, 页码：490-497 , 文章类型： Article，,卷期：2013年78-2] Pseudofirst-order rate constants (k(obsd)) have been measured spectrophotometrically for the nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates 4a-f and Y-substituted phenyl benzenes... D-Glucosamine-Derived Synthons for Assembly of L-threo-Sphingoid Bases. Total Synthesis of Rhizochalinin C [作者：KO JAEYOUNG; MOLINSKI TADEUSZ F,期刊：Journal of Organic Chemistry, 页码：498-505 , 文章类型： Article，,卷期：2013年78-2] A five-step transformation of D-glucosamine, commencing with indium-mediated Barbier reaction without isolation of intermediates, into (R,R)-2-aminohex-5-ene-1,3-diol in 45-51% is described. The latter is a useful syntho... Mechanistic Analysis and Optimization of the Copper-Catalyzed Enantioselective Intramolecular Alkene Aminooxygenation [作者：PADERES MONISSA C; KEISTER JEROME B; CHEMLER SHERRY R,期刊：Journal of Organic Chemistry, 页码：506-515 , 文章类型： Article，,卷期：2013年78-2] The catalytic asymmetric aminooxygenation of alkenes provides an efficient and straightforward approach to prepare chiral vicinal amino alcohols. We have reported a copper(II)-catalyzed enantioselective intramolecular al... N,O-Nucleosides from Ene Reactions of Nitrosocarbonyl Intermediates with the 3-Methyl-2-buten-1-ol [作者：QUADRELLI PAOLO; MELLA MARIELLA; CAROSSO SERENA; BOVIO BRUNA,期刊：Journal of Organic Chemistry, 页码：516-526 , 文章类型： Article，,卷期：2013年78-2] Nitrosocarbonyl intermediates undergo ene reactions with allylic alcohols, affording regioisomeric adducts in fair yields. Nitrosocarbonyl benzene reacts with 3-methyl-2-buten-1-ol and follows a Markovnikov orientation a... A Formal Synthesis of Lavendamycin Methyl Ester, Nitramarine, and Their Analogues: A Povarov Approach [作者：RAMESH SUBBURETHINAM; NAGARAJAN RAJAGOPAL,期刊：Journal of Organic Chemistry, 页码：545-558 , 文章类型： Article，,卷期：2013年78-2] A convergent formal synthesis of lavendamycin methyl ester and synthesis of its analogues have been delineated through the Povarov approach. This protocol is also applied to the formal synthesis of nitramarine (3) in goo... Facile functionalization of HTC-derived carbon microspheres [作者：URAKAMI HIROMITSU; ANTONIETTI MARKUS; VILELA FILIPE,期刊：Chemical Communications, 页码：10984-10986 , 文章类型： Article，,卷期：2012年48-89] Surfaces of HTC-derived carbons were functionalized using dienophiles such as maleimide (MI), tetracyanoethylene (TCNE), and 4,5-dicyano-1,3-dithiol-2-one (DCDTO). DCDTO-functionalized carbons were then hydrolyzed to yie... Mesoporous ferrihydrite with incorporated manganese for rapid removal of organic contaminants in air [作者：MATHEW THOMAS; SUZUKI KENICHIROU; IKUTA YASUHIRO; TAKAHASHI NAOKO; SHINJOH HIROFUMI,期刊：Chemical Communications, 页码：10987-10989 , 文章类型： Article，,卷期：2012年48-89] Mesoporous ferrihydrite nanoparticles with incorporated Mn (MMnFh) were prepared for the first time, and MMnFh exhibits excellent performance in removing organic contaminants (CH3CHO and toluene) in air. The interesting ... Formal C-H amination of cyclopropenes [作者：SUN CHUNRUI; LI JINGWEI; LEE DAESUNG; HUANG GENPING; XIA YUANZHI,期刊：Chemical Communications, 页码：10990-10992 , 文章类型： Article，,卷期：2012年48-89] A novel C(sp(3))-H amination of trimethylsilyl-substituted cyclopropenes is described. This C-H amination proceeds via a tandem regioselective ene reaction between cyclopropenes and azodicarboxylate to generate a hydrazo... Tuning efficiency of the 4-exo-trig cyclization by the electronic effect: ring closure of 3,3-difluoro-4-pentenyl carbon radicals and synthesis of a gem-difluorocyclobutane nucleoside [作者：KUMAMOTO HIROKI; KAWAHIGASHI SACHIKO; WAKABAYASHI HIROMI; NAKANO TOMOHIKO; MIYAIKE TOMOKO; KITAGAWA YASUYUKI; ABE HIROSHI; ITO MIKA; HARAGUCHI KAZUHIRO; BALZARINI JAN; BABA MASANORI; TANAKA HIROMICHI,期刊：Chemical Communications, 页码：10993-10995 , 文章类型： Article，,卷期：2012年48-89] 4-exo-trig Cyclization reaction of a 4-pentenyl carbon radical containing the gem-difluoromethylene moiety adjacent to a radical accepting alpha,beta-unsaturated ester was found to proceed efficiently to furnish a novel ... Enzyme-regulated unmodified gold nanoparticle aggregation: a label free colorimetric assay for rapid and sensitive detection of adenosine deaminase activity and inhibition [作者：ZHANG LIANGLIANG; ZHAO JINGJIN; JIANG JIANHUI; YU RUQIN,期刊：Chemical Communications, 页码：10996-10998 , 文章类型： Article，,卷期：2012年48-89] Based on enzyme-regulated unmodified gold nanoparticle aggregation, a visual and homogeneous assay of adenosine deaminase (ADA) activity without any other coupling enzymes, aptamers or additional modifications has been d... Pillar[n]arenes (n=8-10) with two cavities: synthesis, structures and complexing properties [作者：HU XIAOBO; CHEN ZHENXIA; CHEN LEI; ZHANG LING; HOU JUNLI; LI ZHANTING,期刊：Chemical Communications, 页码：10999-11001 , 文章类型： Article，,卷期：2012年48-89] Three pillar[n]arenes (n = 8-10) were synthesized. X-ray analysis demonstrated that, different from early reported small pillar[n] arenes (n = 5, 6), these larger macrocycles gave rise to two cavities. (HNMR)-H-1 and MS ... Fabrication of heterogeneous exposed core-shell catalyst array using the space specificity of an embodied micelle and their application to a high performance photocatalyst [作者：PARK JUNG HYO; CHOI KYUNG MIN; CHOI JUNG HOON; LEE DONG KI; JEON HYUNG JOON; JEONG HU YOUNG; KANG JEUNG KU,期刊：Chemical Communications, 页码：11002-11004 , 文章类型： Article，,卷期：2012年48-89] We report a new recipe to synthesize heterogeneous catalyst arrays using the space specificity of an embodied micelle. Also, SEM, AFM, STEM, and TXRF analyses prove that these catalysts are of exposed core-shell types. F... Silica supported ruthenium oxide nanoparticulates as efficient catalysts for water oxidation [作者：ZHANG YANG; REN TONG,期刊：Chemical Communications, 页码：11005-11007 , 文章类型： Article，,卷期：2012年48-89] Pre-synthesized ruthenium dioxide nanoparticulates (RuO2 NPs) with low level of aggregation were well dispersed in mesoporous silica SBA-15. As a catalyst for water oxidation, the supported RuO2 NPs exhibit excellent cat... Excess electron transfer dynamics in DNA hairpins conjugated with N,N-dimethylaminopyrene as a photosensitizing electron donor [作者：PARK MAN JAE; FUJITSUKA MAMORU; NISHITERA HARUHIRO; KAWAI KIYOHIKO; MAJIMA TETSURO,期刊：Chemical Communications, 页码：11008-11010 , 文章类型： Article，,卷期：2012年48-89] Excess electron transfer dynamics in DNA hairpins was investigated by femtosecond laser flash photolysis of a donor-DNA-acceptor system using N,N-dimethylaminopyrene and diphenylacetylene as an electron donor and accepto...