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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76条记录   Identification of a Boron-Containing Intermediate in the Boron Tribromide Mediated Aryl Propargyl Ether Cleavage Reaction. [作者：Yao, Min-Liang;Reddy, Marepally Srinivasa;Zeng, Wenbin;Hall, Kelly;Walfish, Ingrid;Kabalka, George W.;,期刊：Journal of Organic Chemistry, 页码：1385-1387 , 文章类型： 研究论文，,卷期：2009年74-3] An alternate reaction mechanism for the boron tribromide mediated deprotection of aryl propargyl ethers based on the isolation of a key boron-contg. byproduct is proposed. On the basis of the new mechanistic insight, au... Ligand-free palladium-catalyzed direct arylation of thiazoles at low catalyst loadings. [作者：Roger, Julien;Pozgan, Franc;Doucet, Henri;,期刊：Journal of Organic Chemistry, 页码：1179-1186 , 文章类型： 研究论文，,卷期：2009年74-3] Ligand-free Pd(OAc)2 was found to catalyze very efficiently the direct arylation of thiazole derivs. under very low catalyst concn. By using activated aryl bromides, the reaction can be performed employing as little as ... Effect of Additives on Chemoselectivity and Diastereoselectivity in the Catalytic Epoxidation of Chiral Allylic Alcohols with Hydrogen Peroxide and Binuclear Manganese Complexes. [作者：Kilic, Hamdullah;Adam, Waldemar;Alsters, Paul L.;,期刊：Journal of Organic Chemistry, 页码：1135-1140 , 文章类型： 研究论文，,卷期：2009年74-3] The catalytic oxidns. of chiral allylic alcs. by manganese complexes of the cyclic triamine 1,4,7-trimethyl-1,4,7-triazacyclononane (tmtacn) (I) and hydrogen peroxide as oxygen donor in the presence of co-catalyst are in... Enantioselective Formal Synthesis of (+)-Dihydrocorynantheine and (-)-Dihydrocorynantheol. [作者：Amat, Mercedes;Gomez-Esque, Arantxa;Escolano, Carmen;Santos, Maria M. M.;Molins, Elies;Bosch, Joan;,期刊：Journal of Organic Chemistry, 页码：1205-1211 , 文章类型： 研究论文，,卷期：2009年74-3] The enantioselective construction of the 3-ethylindolo[2,3-a]quinolizidine moiety present in numerous indole alkaloids is reported, the key steps being a stereoselective cyclocondensation of (S)-tryptophanol with an appr... Total Synthesis of (-)-Platensimycin, a Novel Antibacterial Agent. [作者：Ghosh, Arun K.;Xi, Kai;,期刊：Journal of Organic Chemistry, 页码：1163-1170 , 文章类型： 研究论文，,卷期：2009年74-3] An enantioselective synthesis of platensimycin (I), a novel antibiotic natural product that inhibits bacterial b-ketoacyl-(acyl-carrier-protein) synthase (FabF), is described. Our synthetic strategy for the construction... Synthesis of Isohasubanan Alkaloids via Enantioselective Ketone Allylation and Discovery of an Unexpected Rearrangement. [作者：Nielsen, Daniel K.;Nielsen, Laura L.;Jones, Spencer B.;Toll, Lawrence;Asplund, Matthew C.;Castle, Steven L.;,期刊：Journal of Organic Chemistry, 页码：1187-1199 , 文章类型： 研究论文，,卷期：2009年74-3] A synthesis of the hasubanan alkaloids hasubanonine, runanine, and aknadinine via a unified route was attempted. Construction of key phenanthrene intermediates by a Suzuki coupling-Wittig olefination-ring-closing metath... Mo(CO)6-mediated intramolecular Pauson-Khand reaction of substituted diethyl 3-allyloxy-1-propynylphosphonates. [作者：Moradov, Dorit;Al Quntar, Abed Al Aziz;Youssef, Manar;Smoum, Reem;Rubinstein, Abraham;Srebnik, Morris;,期刊：Journal of Organic Chemistry, 页码：1029-1033 , 文章类型： 研究论文，,卷期：2009年74-3] Pauson-Khand cyclization of di-Et 3-R-3-R1-3-allyloxy-1-propynylphosphonates with Mo(CO)6 gave tetrahydrocyclopenta[c]furan-4-phosphonates I [2a-e; R1 = H; R = Me, Bu, C5H11, C9H19, Ph; 2f,g; R-R1 = (CH2)5, (CH2)6; 2h, R... Proton-Transfer Reactions of Nitroalkanes: The Role of aci-Nitro Species. [作者：Sato, Makoto;Kitamura, Yutaka;Yoshimura, Nobuyoshi;Yamataka, Hiroshi;,期刊：Journal of Organic Chemistry, 页码：1268-1274 , 文章类型： 研究论文，,卷期：2009年74-3] Proton-transfer reactions of two systems, ionization of a series of small carbon acids in water (the Pearson system) and reactions of substituted phenylnitromethanes, were examd. in detail computationally. Comparison of... Synthesis and Resolution of a Multifunctional Inherently Chiral Calix[4]arene with an ABCD Substitution Pattern at the Wide Rim: The Effect of a Multifunctional Structure in the Organocatalyst on Enantioselectivity in Asymmetric Reactions. [作者：Shirakawa, Seiji;Kimura, Tomohiro;Murata, Shun-ichi;Shimizu, Shoichi;,期刊：Journal of Organic Chemistry, 页码：1288-1296 , 文章类型： 研究论文，,卷期：2009年74-3] An efficient synthetic route to inherently chiral calix[4]arenes with an ABCD substitution pattern at the wide rim in the cone conformation was developed for the first time. For the synthesis of inherently chiral ABCD-t... Brevisin: An aberrant polycyclic ether structure from the dinoflagellate Karenia brevis and its implications for polyether assembly. [作者：Satake, Masayuki;Campbell, Anna;Van Wagoner, Ryan M.;Bourdelais, Andrea J.;Jacocks, Henry;Baden, Daniel G.;Wright, Jeffrey L. C.;,期刊：Journal of Organic Chemistry, 页码：989-994 , 文章类型： 研究论文，,卷期：2009年74-3] Brevisin (I) is an unprecedented polycyclic ether isolated from the dinoflagellate Karenia brevis, an organism well known to produce complex polycyclic ethers. The structure of I was detd. by detailed analyses of MS and... Rigid Duplex a-Cyclodextrin Reversibly Connected With Disulfide Bonds. Synthesis and Inclusion Complexes. [作者：Kumprecht, Lukas;Budesinsky, Milos;Vondrasek, Jiri;Vymetal, Jiri;Cerny, Jiri;Cisarova, Ivana;Brynda, Jiri;Herzig, Vladimir;Koutnik, Petr;Zavada, Jiri;Kraus, Tomas;,期刊：Journal of Organic Chemistry, 页码：1082-1092 , 文章类型： 研究论文，,卷期：2009年74-3] The rigid duplex cyclodextrin 6 composed of two a-cyclodextrin macrocycles connected with two disulfide bonds in "transannular" (C6I, C6IV) positions was prepd. from partially debenzylated a-cyclodextrin 1 in four steps ... Synthesis of a stable iminium salt and propellane derivatives. [作者：Nagase, Hiroshi;Yamamoto, Naoshi;Nemoto, Toru;Yoza, Kenji;Kamiya, Kenshu;Hirono, Shuichi;Momen, Shinobu;Izumimoto, Naoki;Hasebe, Ko;Mochizuki, Hidenori;Fujii, Hideaki;,期刊：Journal of Organic Chemistry, 页码：1428-1428 , 文章类型： 研究论文，,卷期：2009年74-3] On page 8094, substituent R of compd. 1f in Table should be cor. to CH2CF3. On page 8094, the corrections to Compds. 8 and 9 in Figure 2 are given. On page 8095, the structure of Compd. 15 in Scheme 3 is incorrect; the... A Novel One-Step Synthesis of Imidazo[5,1-a]isoquinolines via a Tandem Pd-Catalyzed Alkylation-Direct Arylation Sequence. [作者：Jafarpour, Farnaz;Ashtiani, Parvaneh T.;,期刊：Journal of Organic Chemistry, 页码：1364-1366 , 文章类型： 研究论文，,卷期：2009年74-3] A palladium-catalyzed/norbornene-mediated one-step synthesis of highly functionalized imidazoles via a sequential alkyl-aryl and aryl-heteroaryl bond formation is devised. This method provides an efficient route to a wi... Alkylation of 2-Substituted (6-Methyl-2-pyridyl)methyllithium Species with Epoxides. [作者：Vyvyan, James R.;Brown, Rebecca C.;Woods, Brian P.;,期刊：Journal of Organic Chemistry, 页码：1374-1376 , 文章类型： 研究论文，,卷期：2009年74-3] Substituted (6-methyl-2-pyridyl)methyllithium species were reacted with 1,2-epoxyoctane and 2-methyl-2,3-epoxynonane. The monosubstituted epoxide reacted efficiently with lutidyllithium and a no. of 2-substituted (6-met... Facile Stereoselective Synthesis of Fluorinated Flavanone Derivatives via a One-Pot Tandem Reaction. [作者：Cui, Haifeng;Li, Peng;Chai, Zhuo;Zheng, Changwu;Zhao, Gang;Zhu, Shizheng;,期刊：Journal of Organic Chemistry, 页码：1400-1402 , 文章类型： 研究论文，,卷期：2009年74-3] A series of fluorinated flavanones, e.g. I (R = Ph, 2-furanyl, n-pentyl, etc.), were synthesized in moderate to good yields with excellent diastereoselectivities under mild reaction conditions via a one-pot tandem proced... New synthesis of 3-fluoropyrroles. [作者：Surmont, Riccardo;Verniest, Guido;Colpaert, Filip;Macdonald, Gregor;Thuring, Jan Willem;Deroose, Frederik;De Kimpe, Norbert;,期刊：Journal of Organic Chemistry, 页码：1377-1380 , 文章类型： 研究论文，,卷期：2009年74-3] 5-Alkoxymethyl-2-aryl-3-fluoro-1H-pyrroles and 2-aryl-3-fluoro-1H-pyrrole-5-carbaldehydes were efficiently prepd. from the corresponding 2-aryl-5-(bromomethyl)-1-pyrrolines via electrophilic a,a-difluorination of the imi...