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17条记录   SYNTHETIC ROUTES TOWARDS THIAZOLO[1,3,5]TRIAZINES (REVIEW) [作者：DOLZHENKO ANTON V,期刊：Heterocycles, 页码：695-738 , 文章类型： Review，,卷期：2011年83-4] The present review summarizes information on the synthetic approaches to thiazolo[3,2-a][1,3,5]triazines and polyfused systems bearing this heterocyclic core since the first report on this structure in 1887. The methods ... EFFICIENT STEREOSELECTIVE SYNTHESIS OF CATECHIN TRIMER DERIVATIVE USING SILVER LEWIS ACID-MEDIATED EQUIMOLAR CONDENSATION [作者：OIZUMI YUKIKO; MOHRI YOSHIHIRO; HATTORI YASUNAO; MAKABE HIDEFUMI,期刊：Heterocycles, 页码：739-742 , 文章类型： Article，,卷期：2011年83-4] A stereoselective synthesis of benzylated catechin trimer under intermolecular condensasion is achieved using equimolar amount of dimeric catechin nucleophile and monomeric catechin electrophile catalyzed by AgOTf or AgB... SYNTHESIS AND REACTIVITY OF 6H-DIBENZO[C,E][1,2]OXAPHOSPHININE 6-SULFIDE, A NOVEL THIOPHOSPHACYCLIC MOLECULE [作者：RAKOTOMALALA MURIEL; WAGNER SEBASTIAN; ZEVACO THOMAS; CIESIELSKI MICHAEL; WALTER OLAF; DOERING MANFRED,期刊：Heterocycles, 页码：743-753 , 文章类型： Article，,卷期：2011年83-4] The new 6H-dibenzo[c,e][1,2]oxaphosphinine 6-sulfide (1) was synthesized and characterized by H-1-, C-13-, P-31-NMR, IR spectroscopy as well as X-ray diffraction and HR-MS. The reactivity of (1) was investigated with a s... SYNTHESIS OF NOVEL SUBSTITUTED 4-HYDROXY-3-OXO-3,4-DIHYDRO-2H-1,4-BENZOXAZINE-6,7-DICARBONITRILES [作者：FILIMONOV SERGEY I; CHIRKOVA ZHANNA V; ABRAMOV IGOR G; FIRGANG SERGEY I; STASHINA GALINA A; SUPONITSKY KYRILL YU,期刊：Heterocycles, 页码：755-763 , 文章类型： Article，,卷期：2011年83-4] New method has been elaborated for synthesis of novel substituted 4-hydroxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6,7-dicarbonitriles by means of activated nucleophilic substitution of the bromine atom in 4-bromo-5-nitrop... SYNTHESIS OF NEW IMIDAZOLE 3-OXIDES; UNEXPECTED DEOXYGENATION OF SOME DERIVATIVES IN THE REACTION WITH 2,2,4,4-TETRAMETHYLCYCLOBUTANE-1,3-DITHIONE [作者：MLOSTON GRZEGORZ; JASINSKI MARCIN; RYGIELSKA DOROTA; HEIMGARTNER HEINZ,期刊：Heterocycles, 页码：765-776 , 文章类型： Article，,卷期：2011年83-4] Whereas the reaction of a series of 1,4,5-trisubstituted imidazole 3-oxides with 2,2,4,4-tetramethylcyclobutane-1,3-dithione gave the corresponding imidazole-2-thiones by a sulfur-transfer reaction via [2+3] cycloadditio... SYNTHESIS OF 3-ALKANESULFONYL-4(1H)-QUINOLINONES FROM 3-ALKANESULFONYL-4-ALKYLSULFANYLQUINOLINES [作者：SKRZYPEK LESZEK; MASLANKIEWICZ ANDRZEJ; SUWINSKA KINGA,期刊：Heterocycles, 页码：777-787 , 文章类型： Article，,卷期：2011年83-4] 3-Alkanesulfonyl-4-alkylsulfanylquinolines (4) were transformed to 3-alkanesulfonyl-4(1H)-quinolinones (5) and (6). 1H-Derivatives 5 were obtained by acidic hydrolysis of compounds 4. 1-Alkyl derivatives 6 were prepared ... SYNTHESIS AND EMISSION PROPERTIES OF 1,6-METHANO[10]ANNULENE-3,4-DICARBOXIMIDES [作者：KURODA SHIGEYASU; TAMURA NAOKO; MIYATAKE RYUTA; MATSUMOTO NAOKO; HORINO YOSHIKAZU; MIYAWAKI DAISUKE; ODA MITSUNORI,期刊：Heterocycles, 页码：789-796 , 文章类型： Article，,卷期：2011年83-4] A mixture of 1,6-methano[10]annulene-3,4-dicarboximide (le) and 1,6-methano[10]annulene-3,4-dicarboxylic anhydride (3) was obtained through a two-step sequence involving cyanation and subsequent hydrolysis from ethyl 4-b... SYNTHESIS OF O-2- AND N-3-(2-PHOSPHONOMETHOXY)ETHYL DERIVATIVES OF 6-PHENYL- AND 6-PYRIDINYL-5-AZACYTOSINE [作者：OTMAR MIROSLAV; DRACINSKY MARTIN; KRECMEROVA MARCELA; BALZARINI JAN; ANDREI GRACIELA; SNOECK ROBERT,期刊：Heterocycles, 页码：797-813 , 文章类型： Article，,卷期：2011年83-4] A series of hydrolytically stable O-2- and N-3-(2-phosphonomethoxy)ethyl (PME) derivatives of 6-phenyl, pyridin-2, -3 and -4-yl-5-azacytosines was prepared by their alkylation with diisopropyl (2-chloroethoxy)methylphosp... FACILE SYNTHESIS OF PYRANO[3,2-e]INDOLES VIA THE BASE-PROMOTED PICTET-SPENGLER REACTION OF N-b-BENZYLSEROTONIN [作者：YAMADA KOJI; YAMAGUCHI SAYAKA; HATAE NORIYUKI; ABE TAKUMI; IWAMURA TATSUNORI; ISHIKURA MINORU,期刊：Heterocycles, 页码：815-826 , 文章类型： Article，,卷期：2011年83-4] A novel and simple protocol for the synthesis of 1-(2-aminoethyl)pyrano[3,2-e]indole derivatives has been developed using the Pictet-Spengler reaction of N-b-benzylserotonin with alpha,beta-unsaturated aldehydes in the p... HECK-MIZOROKI REACTION OF 4-IODO-1H-PYRAZOLES [作者：USAMI YOSHIHIDE; ICHIKAWA HAYATO; HARUSAWA SHINYA,期刊：Heterocycles, 页码：827-835 , 文章类型： Article，,卷期：2011年83-4] The Heck-Mizoroki reaction of 1-protected-4-iodo-1H-pyrazoles with various kinds of alkenes was examined and found to yield 1-protected-4-alkenyl-1H-pyrazoles. P(OEt)(3) was a suitable ligand for the cross-coupling react... PREPARATION AND REACTION OF QUINOLINYL (OR PYRIDINYL)PHOSPHONIUM SALTS WITH BASE AND PIVALALDEHYDE [作者：SHIMADA MINAMI; SUGIMOTO OSAMU; SATO AKIHIRO; TANJI KENICHI,期刊：Heterocycles, 页码：837-847 , 文章类型： Article，,卷期：2011年83-4] alpha- and gamma-Heteroaryltriphenylphosphonium iodides were prepared by reaction of the corresponding heteroaryl iodides with triphenylphosphine. Reaction of beta-heteroaryl iodides with triphenylphosphine in the presen... THE FIRST HYDROPEROXYDIHYDROCHALCONE IN THE ETLINGERA GENUS: ETLINGLITTORALIN FROM THE RHIZOMES OF ETLINGERA LITTORALIS [作者：JEERAPONG CHOTIKA; CHEENPRACHA SAROT; MANEERAT WISANU; PRAWAT UMA; KRUAHONG THONGCHAI; LAPHOOKHIEO SURAT,期刊：Heterocycles, 页码：849-854 , 文章类型： Article，,卷期：2011年83-4] Etlinglittarolin (6), a monoterpene-substituted hydroperoxy-dihydrochalcone, together with five known dihydrochacones including 2', 6'-dihydroxy-4'-methoxydihydrochalcone (1), 2',4',6'-trihydroxydihydrochalcone (2), 2',6... MICROWAVE-ASSISTED, Yb(OTf)(3)/TfOH COCATALYZED SYNTHESIS OF XANTHONES AND THIOXANTHONES BY INTRAMOLECULAR FRIEDEL-CRAFTS REACTION UNDER SOLVENT-FREE CONDITIONS [作者：LI JIE; JIN CAN; SU WEIKE,期刊：Heterocycles, 页码：855-866 , 文章类型： Article，,卷期：2011年83-4] An efficient method for the synthesis of biologically interesting xanthones and thioxanthones was achieved using Yb(OTf)(3)/TfOH as co-catalysts by a microwave radiation-mediated reaction. Both electron-rich and electron... SYNTHESIS OF CABOXAMYCIN AND ITS DERIVATIVES USING ECO-FRIENDLY OXIDATION [作者：TAGAWA YOSHINOBU; KOBA HIROKI; TOMOIKE KAZUHIRO; SUMOTO KUNIHIRO,期刊：Heterocycles, 页码：867-874 , 文章类型： Article，,卷期：2011年83-4] The reaction of 3-hydroxyanthranilic acid or methyl 3-hydroxyanthranilate with O-benzylsalicylaldehyde in xylenes gave benzoxazole derivatives, which lead to a novel benzoxazole antibiotic, caboxamycin via debenzylation ... A FACILE AND EFFICIENT SYNTHESIS OF 3-AMINO-5-BROMOPYRIDINE DERIVATIVES USING MICROWAVE IRRADIATION [作者：DANDU REDDEPPA REDDY; ROSE ADAM C; HUDKINS ROBERT L,期刊：Heterocycles, 页码：875-881 , 文章类型： Article，,卷期：2011年83-4] A facile and general synthetic strategy was developed to synthesize 3-amino-5-bromopyridine derivatives under microwave heating conditions. The strategy involved reacting 3,5-dibromopyridine with an excess of an aliphati... ONE-POT SYNTHESIS OF 4,5-DIHYDRO-3,1-BENZOXAZEPINE-2(1H)-THIONES FROM 2-(2-ISOCYANOPHENYL)ETHANOLS VIA THE CORRESPONDING ISOTHIOCYANATES [作者：FUKAMACHI SHUHEI; KONISHI HISATOSHI; KOBAYASHI KAZUHIRO,期刊：Heterocycles, 页码：883-889 , 文章类型： Article，,卷期：2011年83-4] An efficient method for the preparation of 4,5-dihydro-3,1-benzoxazepine-2(1H)-thiones under mild conditions has been developed. 2-(2-Isocyanophenyl)ethanols, easily accessible by treating 1-isocyano-2-(lithiomethyl)benz...