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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71条记录   RAPID AND CONVERGENT SYNTHESIS OF A 2,4 '-LINKED TRI-OXAZOLE IN AN APPROACH TO POLY-OXAZOLES [作者：CASPI DANIEL D; ZHANG HAIMING; VIRGIL SCOTT C; PILLER FABIAN M; STOLTZ BRIAN M,期刊：Heterocycles, 页码：1003-1008 , 文章类型： Article，,卷期：2012年86-2] A rapid and convergent synthesis of a 2,4'-linked tri-oxazole using a Negishi coupling is described. FIRST TOTAL SYNTHESIS AND ABSOLUTE CONFIGURATION OF KERAMAMINE C [作者：ISHIYAMA HARUAKI; MORI YUTA; MATSUMOTO TAKASHI; KOBAYASHI JUNICHI,期刊：Heterocycles, 页码：1009-1014 , 文章类型： Article，,卷期：2012年86-2] Asymmetric first total synthesis of keramamine C, a tetrahydro-beta-carboline alkaloid from an Okinawan marine sponge Amphimedon sp., has been accomplished with the Bischler-Napieralski reaction and the Noyori catalytic ... DEHYDROGENATIVE N-HETEROCYCLIZATION OF 2-(2-AMINOARYL)ETHYL ALCOHOLS TO INDOLE DERIVATIVES CATALYZED BY (mu-OXO)TETRARUTHENIUM CLUSTER/1,2-BIS(DIPHENYLPHOSPHINO)BENZENE [作者：KONDO TERUYUKI; KANDA TAKASHI; TAKAGI DAISUKE; WADA KENJI; KIMURA YU; TOSHIMITSU AKIO,期刊：Heterocycles, 页码：1015-1022 , 文章类型： Article，,卷期：2012年86-2] A novel catalyst system of (mu-oxo)tetraruthenium cluster (2) combined with 1,2-bis(diphenylphosphino)benzene (dppbz) realized a simple, selective, and practical synthesis of indole and its derivatives from 2-(2-aminoary... LIGAND MODIFIED CuFe2O4 NANOPARTICLES AS MAGNETICALLY RECOVERABLE AND REUSABLE CATALYST FOR AZIDE-ALKYNE CLICK CONDENSATION [作者：ISHIKAWA SHINGO; HUDSON REUBEN; MOORES AUDREY; LI CHAOJUN,期刊：Heterocycles, 页码：1023-1030 , 文章类型： Article，,卷期：2012年86-2] A ligand can make the trick: 2,2'-bipyridine was found to promote the activity of copper ferrite nanoparticles as catalysts for the azide-alkyne "click" coupling reaction. The reaction proceeded in excellent yields at ro... DIRECT OXIDATION OF 4-METHYLPYRROLE-2-CARBOXYLATES WITH DDQ IN THE PRESENCE OF A GLYCOL [作者：TAKAHASHI KANA; IWAMOTO RYOJI; SAKATA RYO; SOETA TAKAHIRO; INOMATA KATSUHIKO; UKAJI YUTAKA,期刊：Heterocycles, 页码：1031-1038 , 文章类型： Article，,卷期：2012年86-2] Oxidation of 4-methylpyrrole-2-carboxylates with DDQ in the presence of a glycol proceeded smoothly on the methyl group at the C4 position regioselectively to afford the corresponding pyrrole-2,4-dicarboxylates directly.... REACTION OF 1,2,3-OXADIAZOLE 3-OXIDES [作者：SUGIHARA TAKUMICHI; MURAKAWA AKIRA; SAWANAKA CHIEMI; SEKI MEGUMI; IIO NATSUKI; IIZUKA AYANO; OOHORA TAKUYA; HONZAWA SHINOBU,期刊：Heterocycles, 页码：1039-1044 , 文章类型： Article，,卷期：2012年86-2] 1,2,3-Oxadiazole 3-oxides with an alkoxymethyl group at the 5-position were reduced by reacting them with sodium borohydride to produce 4,5-dihydro-1,2,3-oxadiazole 3-oxides in good yields, which were further transformed... COMBINED DIRECTED METALATION - SUZUKI-MIYAURA CROSS COUPLING STRATEGIES. SYNTHESIS OF ISOMERIC CHROMENOPYRIDINONES and RELATED ANNULATED ANALOGUES [作者：MILLER RICARDA E; SOMMER ROMAN; FAN HOPE; SNIECKUS VICTOR; GROTH ULRICH,期刊：Heterocycles, 页码：1045-1054 , 文章类型： Article，,卷期：2012年86-2] A general strategy encompassing a Directed ortho Metalation (DoM) - Suzuki-Miyaura cross coupling and Directed remote Metalation (DreM) sequence for the synthesis of 5H-chromeno[4,3-c]pyridin-5-ones 5a-j, 5H-chromeno[3,4... ADVANCES IN SILOXANE-BASED COUPLING REACTIONS: APPLICATION OF PALLADIUM-MEDIATED ALLYL-ARYL COUPLING TO THE SYNTHESIS OF PANCRATISTATIN DERIVATIVES. THE FORMAL TOTAL SYNTHESIS OF (+/-)-7-DEOXYPANCRATISTATIN [作者：SHUKLA KRUPA H; DESHONG PHILIP,期刊：Heterocycles, 页码：1055-1069 , 文章类型： Article，,卷期：2012年86-2] Palladium-mediated coupling of an allylic carbonate and an aryl siloxane has been applied to the formal total synthesis of 7-deoxypancratistatin and pancratistatin analogues. The key coupling reaction involved the use of... STEREOCONTROLLED TOTAL SYNTHESIS OF (-)-FR901483 [作者：IEDA SHIGERU; MASUDA AKITAKA; KARIYAMA MAMI; WAKIMOTO TOSHIYUKI; ASAKAWA TOMOHIRO; FUKUYAMA TOHRU; KAN TOSHIYUKI,期刊：Heterocycles, 页码：1071-1092 , 文章类型： Article，,卷期：2012年86-2] The total synthesis of a potent immunosuppressant (-)-FR901483 is accomplished. The skeleton itself is constructed by the Ugi 4CC reaction, subsequent intramolecular Dieckmann condensation, and a diastereoselective intra... THE FIRST TOTAL SYNTHESES OF SCHOLAREINS A, C, AND D EMPLOYING 2ND GENARATION PALLADIUM-CATALYZED CYCLOALKENYLATION [作者：KAWAI YASUFUMI; SAEKI MEGUMI; TOYOTA MASAHIRO,期刊：Heterocycles, 页码：1093-1101 , 文章类型： Article，,卷期：2012年86-2] (+/-)-Scholareins A (1), C (3), and D (4) have been synthesized for the first time by a 2nd generation palladium-catalyzed cycloalkenylation. In addition, total synthesis of (+/-)-boonein (5) has also been achieved by ap... RHODIUM-CATALYZED SYNTHESIS OF BENZOFURANS BY THE REACTION OF KETONES AND O-DIFLUOROBENZENES [作者：ARISAWA MIEKO; NAKANE SOICHIRO; KUWAJIMA MANABU; YAMAGUCHI MASAHIKO,期刊：Heterocycles, 页码：1103-1118 , 文章类型： Article，,卷期：2012年86-2] In the presence of catalytic amounts of RhH(PPh3)(4) and 1,2-bis(diphenylphosphino)ethane (dppe), ketones reacted with o-difluorobenzenes giving benzofurans in high yields. The alpha-arylation of ketones and furan cycliz... SYNTHESIS OF CALYCOTOMINE AND N-METHYLCALYCOTOMINE USING A PETASIS REACTION - POMERANZ-FRITSCH-BOBBITT CYCLIZATION SEQUENCE [作者：CHRZANOWSKA MARIA; GRAJEWSKA AGNIESZKA; ROZWADOWSKA MARIA D,期刊：Heterocycles, 页码：1119-1127 , 文章类型： Article，,卷期：2012年86-2] The use of aminoacetaldehyde acetals as the amine components in the one-step, three-component Petasis reaction followed by the Pomeranz-Fritsch-Bobbitt cyclization has been shown to be a convenient and simple method for ... HYDROGEN BONDING INDUCED HIGHLY SELECTIVE ISOMERIZATION OF AN OLEFIN HAVING HETEROAROMATIC RINGS [作者：KOBAYASHI TAKUYA; ARAI TATSUO,期刊：Heterocycles, 页码：1129-1134 , 文章类型： Article，,卷期：2012年86-2] Heteroaromatic compounds having two different isomerization parts in the molecule containing nitrogen at the aromatic ring have been synthesized and their photoisomerization and fluorescence properties have been examined... A 2-AMINO-6-METHYLPYRIDIN-5-YL NUCLEOBASE FOR GC BASE PAIR RECOGNITION IN THE PARALLEL TRIPLEX DNA [作者：NAKAHARA MOTOI; HARI YOSHIYUKI; OBIKA SATOSHI,期刊：Heterocycles, 页码：1135-1146 , 文章类型： Article，,卷期：2012年86-2] DNA triple helices containing consecutive C+H center dot GC triplets are unstable at neutral pH because protonations of cytosines into the third strand are necessary. Previously, a 2-aminopyridin-5-yl nucleobase (P) was ... SYNTHESIS OF 2-ACETAMIDO-2,5-DIDEOXY-5-PHOSPHORYL-D-GLUCOPYRANOSE DERIVATIVES: NEW PHOSPHA-SUGAR ANALOGS OF N-ACETYL-D-GLUCOSAMINE [作者：HANAYA TADASHI; KAWAGUCHI MASAHIRO; SUMI MASAKAZU; MAKINO KAZUO; TSUKADA KEIKO; YAMAMOTO HIROSHI,期刊：Heterocycles, 页码：1147-1165 , 文章类型： Article，,卷期：2012年86-2] Starting with N-acetyl-D-glucosamine, methyl 2-acetamido-3,6-di-O-benzyl-2-deoxy-beta-D-xylo-hexofuranosid-5-ulose (18) was prepared in 7 steps. The addition reaction of dimethyl phosphonate to 18, followed by deoxygenat... SYNTHESIS AND REACTIONS OF SILICON-BRIDGED DITHIENYLBIPHENYLS. FINE TUNING OF ELECTRONIC STATES BY BRIDGING SILICON CHAIN LENGTHS [作者：OHSHITA JOJI; MURAKAMI KAZUYA; TANAKA DAIKI; YOSHIDA HIROTO,期刊：Heterocycles, 页码：1167-1176 , 文章类型： Article，,卷期：2012年86-2] 4,4'-Bis(ethylthienyl)-2,2'-(tetramethyl- and tetrabutyldisilano)biphenyls were prepared by the Migita-Kosugi-Stille coupling reactions of ethyl(trimethylstannyl)thiophene with the corresponding dibromo(disilano)biphenyl...