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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66条记录   MICROWAVE-ASSISTED SYNTHESIS OF 3-METHYLISOTHIAZOLO[5,4-b]PYRIDINE AND VARIOUS 2-AMINO DERIVATIVES OF THIENO[2,3-b]PYRIDINE AND 1-(2-AMINOPYRIDIN-3-YL)ETHANONE [作者：ANKATI HARIBABU; BIEHL EDWARD R,期刊：Heterocycles, 页码：1291-1302 , 文章类型： Article，,卷期：2010年80-2] Various 2-amino derivatives of thieno[2,3-b]pyridin-2-amine (3a-g) were prepared in fair to good yields (30-76%) by subjecting 1-(2-chloropyridin-3-yl)ethanone (1) and appropriate primary amine (2a-g) to microwave heatin... APPLICATION OF SUGAR ALLYLTIN DERIVATIVES FOR THE PREPARATION OF HETEROCYCLIC COMPOUNDS [作者：MAGDYCZ MARTA; CMOCH PIOTR; JAROSZ SLAWOMIR,期刊：Heterocycles, 页码：1303-1318 , 文章类型： Article，,卷期：2010年80-2] Controlled fragmentation of sugar allyltin, derivative of D-glucose, provided the eight carbon atom synthon: (2R,3S,4R)-tris(benzyloxy)oct-5,7-diene, which was used for the preparation of complex heterocyclic compounds. ... SYNTHESIS OF CHIRAL 1,3-DISUBSTITUTED TETRAHYDROISOQUINOLINES AND THEIR USE IN THE ASYMMETRIC ADDITION OF DIETHYLZINC TO ALDEHYDES [作者：MACLEOD PATRICIA D; RECKLING AMY M; LI CHAOJUN,期刊：Heterocycles, 页码：1319-1337 , 文章类型： Article，,卷期：2010年80-2] The effects of modifications on three sites of 1-(1,2,3,4-tetrahydro-isoquinolin-1-yl)-naphthalen-2-ol (THIQNOL) chiral ligands the asymmetric diethylzinc additions were examined. The studies showed that modifications at... 2-SUBSTITUTED ISOTELLUROCHROMENIUM SALT DERIVATIVES: PREPARATIONS, STRUCTURES, SPECTROSCOPIC PROPERTIES [作者：SASHIDA HARUKI; NAKABAYASHI SHOKO; KANAME MAMORU; MINOURA MAO,期刊：Heterocycles, 页码：1339-1352 , 文章类型： Article，,卷期：2010年80-2] Several types of novel isotellurochromenium salt derivatives (2-10) were prepared from the isotellurochromenes (1). The isotellurochromenium tetrafluoroborates (2), triflates (3-5), tosylates (6) and mesylates (7) are te... DIVERGENT SYNTHESIS OF 2,3,5-SUBSTITUTED THIOPHENES BY C-H ACTIVATION/BORYLATION/SUZUKI COUPLING [作者：KALLEPALLI VENKATA A; SANCHEZ LUIS; LI HAO; GESMUNDO NATHAN J; TURTON CLARISSA L; MALECZKA ROBERT E JR; SMITH MILTON R III,期刊：Heterocycles, 页码：1429-1448 , 文章类型： Article，,卷期：2010年80-2] C-H activation/borylation has been married with Suzuki coupling to prepare DuP 697 (1) and analogs that would be otherwise difficult to obtain via the traditional synthetic route to 1. SYNTHETIC STUDIES CONNECTED WITH THE PREPARATION OF N-[3-(3-CYANOPYRAZOLO[1,5-a]PYRIMIDIN-5-YL)PHENYL]-N-ETHYLACETAMIDE, A ZALEPLON REGIOISOMER [作者：RADL STANISLAV; BLAHOVCOVA MICHAELA; TKADLECOVA MARCELO; HAVLICEK JAROSLAV,期刊：Heterocycles, 页码：1359-1379 , 文章类型： Article，,卷期：2010年80-2] N-[3-(3-Cyanopyrazolo[1,5-a]pyrimidin-5-yl)phenyl]-N-ethyl-acetamide, a principal impurity of zaleplon, is prepared by Suzuki-Miyaura cross coupling reaction of the corresponding boronic acid and/or boronates with 5-chlo... APPLICATION OF SAMARIUM DIIODIDE-PROMOTED REDUCTIVE CARBON-NITROGEN BOND CLEAVAGE REACTION TO 3-OXOPYRROLIDINE DERIVATIVES: ALTERNATIVE SYNTHESIS OF A COCCINELLID ALKALOID, (-)-ADALININE [作者：HONDA TOSHIO; HISA CHIHIRO,期刊：Heterocycles, 页码：1381-1406 , 文章类型： Article，,卷期：2010年80-2] Samarium diiodide-promoted reductive deamination reaction was applied to 5,5-disubstitued 3-oxopyrrolidines to provide 4,4-disubstituted 4-aminobutan-2-one derivatives, where the carbon-nitrogen bond cleavage took place ... PLATISIDINES A-C, N-METHYLPYRIDINIUM ALKALOIDS FROM AN OKINAWAN MARINE SPONGE OF PLAKORTIS SPECIES [作者：KUBOTA TAKAAKI; ISHIGURO YUICHIRO; YAMAMOTO SUNAO; FROMONT JANE; KOBAYASHI JUNICHI,期刊：Heterocycles, 页码：1407-1412 , 文章类型： Article，,卷期：2010年80-2] Three new N-methyl pyridinium alkaloids, platisidines A-C (1-3), were isolated from an Okinawan marine sponge of the genus Plakortis, and the structures were elucidated from spectroscopic data. The structures of platisid... HETEROAROMATIC TRAPPING OF TRICYCLIC 2-OXIDOCYCLOPENTENYL CATIONS: A SURPRISINGLY EFFICIENT EXAMPLE OF INTERMOLECULAR INTERRUPTED NAZAROV REACTION [作者：RIEDER CURTIS J; FRADETTE RYAN J; WEST FREDERICK G,期刊：Heterocycles, 页码：1413-1427 , 文章类型： Article，,卷期：2010年80-2] Bis(cycloalkenyl) ketones 2a and 2f underwent Nazarov cyclization and intermolecular trapping by electrophilic aromatic substitution with furans, thiophenes, pyrroles, indoles and dimethoxybenzene. Only the cis-anti-cis ... STEREOSELECTIVE PREPARATION OF OXYGENATED HETEROCYCLES USING STEREOCONTROLLED TANDEM DOUBLE-ALLYLATION OF CARBONYL COMPOUNDS WITH A BORON-SILICON REAGENT [作者：SIVASUBRAMANIAM UMAKANTHAN; HALL DENNIS G,期刊：Heterocycles, 页码：1449-1456 , 文章类型： Article，,卷期：2010年80-2] A one-pot three-component reaction between carbonyl double-allylation reagent 1 and aldehydes was optimized to provide a high diastereoselectivity in the formation of all-cis trisubstituted tetrahydrofurans. A similar pr... TETRAHYDROQUINAZOLINE DERIVATIVES BY AZA DIELS-ALDER REACTION [作者：CREMONESI GIUSEPPE; DALLA CROCE PIERO; GALLANTI MADDALENA; LA ROSA CONCETTA,期刊：Heterocycles, 页码：1457-1461 , 文章类型： Article，,卷期：2010年80-2] The reaction of N-(2-Chloromethylphenyl)benzenesulfonamides (1) with N-benzylideneamines (2) gives 1,2,3,4-tetrahydroquinazoline derivatives (3) via the highly reactive o-azaxylylene intermediates. The structure of (3) i... GAUDICHAUDYSOLIN A, A NEW LIMONOID FROM THE BARK OF DYSOXYLUM GAUDICHAUDIANUM [作者：NAGAKURA YUTA; YAMANAKA REIKO; HIRASAWA YUSUKE; HOSOYA TAKAHIRO; RAHMAN ABDUL; KUSUMAWATI IDHA; ZAINI NOOR CHOLIES; MORITA HIROSHI,期刊：Heterocycles, 页码：1471-1477 , 文章类型： Article，,卷期：2010年80-2] A new limonoid, gaudichaudysolin A (1) was isolated from the bark of Dysoxylum gaudichaudianum (Meliaceae) and the structure was elucidated by spectroscopic analysis. OXIDATIVE DIMERIZATION OF 4-METHOXYNAPHTHYLAMINES IN THE PRESENCE OF SEMICONDUCTORS [作者：TAKEYA TETSUYA; TAKAHASHI YOSUKE; OKAMOTO IWAO; TAMURA OSAMU,期刊：Heterocycles, 页码：1479-1488 , 文章类型： Article，,卷期：2010年80-2] Three types of 4-methoxynaphthylamines 4a-c were oxidized by treatment with metal oxides under molecular oxygen (02). 4-Methoxy-1-naphthylamine 4a and 4,6-dimethoxy-1-naphthylamine 4b, on treatment with TiO2 under O-2, g... A SHORT ACCESS TO CHIRAL NON-RACEMIC OXA- AND AZAHETEROCYCLES BY CROSS-METATHESIS AND PD-CATALYZED CYCLIZATION SEQUENCE [作者：UENISHI JUNICHI; VIKHE YOGESH S,期刊：Heterocycles, 页码：1463-1469 , 文章类型： Article，,卷期：2010年80-2] A concise synthesis of chiral non-racemic 2-(3-benzoyloxyprop-1-enyl)tetrahydrofuran (5a), tetrahydropyran (5b), and piperidine (8) is described. Cross-metathesis of optically pure (S)-1-O-benzoyl-3-butene-1,2-diol (2) w... THE MUKAIYAMA ALDOL AND MUKAIYAMA-MICHAEL REACTIONS PROMOTED BY COMMERCIALLY AVAILABLE MOLECULAR SIEVES [作者：ANADA MASAHIRO; WASHIO TAKUYA; WATANABE YUDAI; HASHIMOTO SHUNICHI,期刊：Heterocycles, 页码：1489-1503 , 文章类型： Article，,卷期：2010年80-2] The Mukaiyama aldol reaction of silyl ketene acetals with aldehydes has been effected by using commercially available 4 angstrom molecular sieves (4 angstrom MS) as a promoter. Various silyl ketene acetals and silyl enol... CARBONYLATIVE PALLADIUM-CATALYZED REACTIONS OF LACTAM-, LACTONE-, AND THIOLACTONE-DERIVED VINYL TRIFLATES AND PHOSPHATES FOR THE SYNTHESIS OF N-, O-, AND S-HETEROCYCLES [作者：OCCHIATO ERNESTO G; SCARPI DINA; PRANDI CRISTINA,期刊：Heterocycles, 页码：697-724 , 文章类型： Review，,卷期：2010年80-2] A full account of our most recent studies on the chemistry of lactam-, lactone-, and thiolactone-derived vinyl triflates and phosphates is reported. In this review we focus on the use of these versatile electrophiles in ...