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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58条记录   Synthesis and Reactivity of N-Alkyl Carbamoylimidazoles: Development of N-Methyl Carbamoylimidazole as a Methyl Isocyanate Equivalent [作者：DUSPARA PETAR A; ISLAM MD SADEQUL; LOUGH ALAN J; BATEY ROBERT A,期刊：Journal of Organic Chemistry, 页码：10362-10368 , 文章类型： Article，,卷期：2012年77-22] A high-yielding synthesis of N-methyl carbamoylimidazole from 1,1-carbonyldiimidazole (CDI) and MeNH3Cl is described. The product is a crystalline, readily storable, water-stable compound that reacts as a methyl isocyana... Synthesis of Aryl Thioethers through the N-Chlorosuccinimide-Promoted Cross-Coupling Reaction of Thiols with Grignard Reagents [作者：CHENG JUNHAO; RAMESH CHINTAKUNTA; KAO HSINLUN; WANG YUJEN; CHAN CHIENCHING; LEE CHINFA,期刊：Journal of Organic Chemistry, 页码：10369-10374 , 文章类型： Article，,卷期：2012年77-22] A convenient one-pot approach for the synthesis of aryl sulfides through the coupling of thiols with Grignard reagents in the presence of N-chlorosuccinimide is described. The sulfenylchlorides were formed when thiols we... Switching Diastereoselectivity in Proline-Catalyzed Aldol Reactions [作者：MARTINEZCASTANEDA ANGEL; RODRIGUEZSOLLA HUMBERTO; CONCELLON CARMEN; DEL AMO VICENTE,期刊：Journal of Organic Chemistry, 页码：10375-10381 , 文章类型： Article，,卷期：2012年77-22] The choice of the anion of an achiral TBD-derived guanidinium salt, used as cocatalyst for proline, allows reacting cycloketones with aromatic aldehydes and preparing either anti- or syn-aldol adducts with very high enan... Palladium-Catalyzed Sonogashira-Coupling Conjoined C-H Activation: A Regioselective Tandem Strategy to Access Indolo- and Pyrrolo[1,2-a]quinolines [作者：SHUKLA SATYA PRAKASH; TIWARI RAKESH K; VERMA AKHILESH K,期刊：Journal of Organic Chemistry, 页码：10382-10392 , 文章类型： Article，,卷期：2012年77-22] An operationally simple approach for the regioselective tandem synthesis of indolo[1,2-a]quinolines 4a-v and pyrrolo[1,2-a]quinolines 5a-k from 1-(2-bromophenyl)-1H-indole/pyrrole/imidazole 1a-c, 2a,b by the palladium-ca... Accuracy of Calculations of Heats of Reduction/Hydrogenation: Application to Some Small Ring Systems [作者：WIBERG KENNETH B,期刊：Journal of Organic Chemistry, 页码：10393-10398 , 文章类型： Article，,卷期：2012年77-22] The enthalpies of reduction of carbonyl compounds and hydrogenation of alkenes have been calculated at the HF, B3LYP, M06, MP2, G3, G4, CBS-QB3, CBS-APNO, and W1BD levels and, in the case of the first four methods, using... Suzuki-Miyaura Cross-Coupling of Potassium Alkoxyethyltrifluoroborates: Access to Aryl/Heteroarylethyloxy Motifs [作者：FLEURYBREGEOT NICOLAS; PRESSET MARC; BEAUMARD FLORIANE; COLORNBEL VIRGINIE; OEHLRICH DANIEL; ROMBOUTS FREDERIK; MOLANDER GARY A,期刊：Journal of Organic Chemistry, 页码：10399-10408 , 文章类型： Article，,卷期：2012年77-22] The introduction of an alkoxyethyl moiety onto aromatic substructures has remained a long-standing challenge for synthetic organic chemists. The main reasons are the inherent instability of alkoxyethylmetallic species an... Synthesis of Polycyclic Isoindoline Derivatives via Tandem Pd-Catalyzed Coupling, Propargyl-Allenyl Isomerization, [4+2] Cycloaddition and Aromatization Reaction [作者：ZHU SHUGAO; CAO JIAN; WU LULING; HUANG XIAN,期刊：Journal of Organic Chemistry, 页码：10409-10415 , 文章类型： Article，,卷期：2012年77-22] We report in this paper an interesting sequential reaction involving sequential Sonogashira coupling, propargyl-allenyl isomerization, [4 + 2] cycloaddition and aromatization reaction, which provides a facile method for ... Synthesis of cis-Octahydroindoles via Intramolecular 1,3-Dipolar Cycloaddition of 2-Acyl-5-aminooxazolium Salts [作者：BASCH COREY H; BRINCK JAMESON A; RAMOS JOAQUIN E; HABAY STEPHEN A; YAP GLENN PA,期刊：Journal of Organic Chemistry, 页码：10416-10421 , 文章类型： Article，,卷期：2012年77-22] A concise method for the diastereoselective synthesis of octahydroindoles is presented. The products contain 2-amido and 7-hydroxyl substituents. A series of 2-acyl-5-aminooxazoles were prepared in one step. Upon methyla... Elucidating the Role of Aromatic Interactions in Rotational Barriers Involving Aromatic Systems [作者：LIMA CARLOS F R A C; GOMES LIGIA R; LOW JOHN N; SILVA ARTUR M S; SANTOS LUIS M N B F,期刊：Journal of Organic Chemistry, 页码：10422-10426 , 文章类型： Article，,卷期：2012年77-22] The measurement of aryl-naphthyl rotational barriers, Delta G(double dagger), in various solvents for two substituted 1,8-diarylnaphthalenes by dynamic H-1 NMR showed that Delta G(double dagger) trends in aromatic system... Constructing a Quantitative Correlation between N-Substituent Sizes of Chiral Ligands and Enantioselectivities in Asymmetric Addition Reactions of Diethylzinc with Benzaldehyde [作者：HUANG HUAYIN; ZONG HUA; BIAN GUANGLING; SONG LING,期刊：Journal of Organic Chemistry, 页码：10427-10434 , 文章类型： Article，,卷期：2012年77-22] Using the asymmetric addition reaction of diethylzinc with benzylaldehyde as a model, we have demonstrated that excellent correlations exist between steric reference parameters (Charton and Sterimol values) for appropria... Stability of Cyclic Imine Toxins: Interconversion of Pinnatoxin Amino Ketone and Pinnatoxin A in Aqueous Media [作者：JACKSON JEFFREY J; STIVALA CRAIG E; IORGA BOGDAN I; MOLGO JORDI; ZAKARIAN ARMEN,期刊：Journal of Organic Chemistry, 页码：10435-10440 , 文章类型： Article，,卷期：2012年77-22] Pinnatoxins belong to the cyclic imine (CI) group of marine toxins with a unique toxicological profile. The need for structural integrity of the aliphatic 7-membered cyclic imine for the potent bioactivity of pinnatozins... CeCl3 center dot 7H(2)O Catalyzed C-C and C-N Bond-Forming Cascade Cyclization with Subsequent Side-Chain Functionalization and Rearrangement: A Domino Approach to Pentasubstituted Pyrrole Analogues [作者：DHARA DIPANKAR; GAYEN KRISHNANKA S; KHAMARUI SAIKAT; PANDIT PALASH; GHOSH SUKLA; MAITI DILIP K,期刊：Journal of Organic Chemistry, 页码：10441-10449 , 文章类型： Article，,卷期：2012年77-22] CeCl3 center dot 7H(2)O is found as an efficient catalyst for new intermolecular domino reactions of three-, four- and seven-component assemblies of common precursors under benign reaction conditions. Generation of enami... Synthesis and Stability of Phosphate Modified ATP Analogues [作者：HACKER STEPHAN M; MEX MARTIN; MARX ANDREAS,期刊：Journal of Organic Chemistry, 页码：10450-10454 , 文章类型： Article，,卷期：2012年77-22] Nucleotides modified at the phosphate have numerous applications. Nevertheless, the number of attachment modes is limited and little is known about their stability. Here, we present results on the elaboration of the synt... A Chiron Approach to the Total Synthesis of (-)-Juglomycin A, (+)-Kalafungin, (+)-Frenolicin B, and (+)-Deoxyfrenolicin [作者：FERNANDES RODNEY A; CHAVAN VIJAY P; MULAY SANDIP V; MANCHOJU AMARENDER,期刊：Journal of Organic Chemistry, 页码：10455-10460 , 文章类型： Article，,卷期：2012年77-22] A general, efficient, and common strategy for the synthesis of (-)-juglomycin A, (+)-kalafungin, (+)-frenolicin B, and (+)-deoxyfrenolicin is reported here. The strategy involves the synthesis of a key building block alk... Synthesis of Two Unnatural Oxygenated Aaptaminoids [作者：ABBIATI GIORGIO; DODA ARJANA; DELLACQUA MONICA; PIROVANO VALENTINA; FACOETTI DIEGO; RIZZATO SILVIA; ROSSI ELISABETTA,期刊：Journal of Organic Chemistry, 页码：10461-10467 , 文章类型： Article，,卷期：2012年77-22] Two unprecedented oxygenated aaptaminoids have been synthesized starting from cheap and easily available 2,3-dihydroxybenzoic acid with the satisfactory overall yields of 31% and 34%. The key step of the procedure is the... Palladium-Catalyzed Desulfitative Arylation by C-O Bond Cleavage of Aryl Inflates with Sodium Arylsulfinates [作者：ZHOU CHAO; LIU QINGJIANG; LI YAMING; ZHANG RONG; FU XINMEI; DUAN CHUNYING,期刊：Journal of Organic Chemistry, 页码：10468-10472 , 文章类型： Article，,卷期：2012年77-22] An efficient Pd-catalyzed desulfitative coupling reaction of sodium arylsulfinates as arylation reagents by C-O bond cleavage of aryl triflates was developed. With only 2 mol % of Pd(OAc)(2) as catalyst and XPhos as liga...