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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14条记录   DEVELOPMENT OF SAMARIUM DIIODIDE-PROMOTED REDUCTIVE CARBON-NITROGEN BOND CLEAVAGE REACTION OF alpha-AMINO CARBONYL COMPOUNDS: APPLICATION TO THE SYNTHESIS OF BIOLOGICALLY ACTIVE ALKALOIDS [作者：HONDA TOSHIO,期刊：Heterocycles, 页码：1-46 , 文章类型： Article，,卷期：2011年83-1] Samarium diiodide (SmI2) is a mild and selective one electron transfer reagent, and has become an important tool for developing a variety of useful and unique transformations. SmI2 has been utilized in a wide range of sy... AN EXPERIMENTAL STUDY OF SPECIAL LEAVING GROUP BEHAVIOR IN THE REACTION OF ARYLIDENEBARBITURIC ACIDS WITH CARBON NUCLEOPHILES [作者：BIGDELI MOHAMMAD A; SHEIKHHOSSEINI ENAYATOLLAH; HABIBI AZIZOLLAH; BALALAIE SAEED,期刊：Heterocycles, 页码：107-116 , 文章类型： Article，,卷期：2011年83-1] The reaction of benzylidenebarbituric acid and 1,3-dimethylbenzylidenebarbituric acid with malononitrile as well as with dimedone in piperidine is investigated. In reaction with malononitrile, substituted pyridine-3,5-di... HECK REACTIONS IN 2,6-DIARYL-3,5-DIBROMO-4-PYRONES IN THE PRESENCE OF N,N '-DIBUTYLBENZIMIDAZOLIUM BROMIDE [作者：GHASEMI ZARRIN; NAZARIBELVIRDI VAHIDEH; ALLAHVIRDINASAB MARYAM; SHAHRISA AZIZ,期刊：Heterocycles, 页码：117-123 , 文章类型： Article，,卷期：2011年83-1] Synthesis of two 2,6-diaryl-3,5-dibromo-4-pyrone derivatives is described, by using of NBS/DMF bromination of related 2,6-diaryl-4-pyrones. PdCl2 catalyzed Heck coupling reactions of these dibromides, with emphasis on th... SYNTHESIS OF FLUOROQUINOLONE DI- AND TRI-(N-METHYLPYRROLE) CONJUGATES [作者：SUZUKI ICHIRO; TAKAHASHI MAYUKO; TAKEDA KEI,期刊：Heterocycles, 页码：125-134 , 文章类型： Article，,卷期：2011年83-1] Some FLQs, such as lomefloxacin and fleroxacin, having two fluorine atoms are known to generate an arylcarbene under photoirradiation conditions leading to DNA damage. We synthesized some conjugates between FLQs and di- ... TWO NEW FLAVONOL GLYCOSIDES FROM SEDUM AIZOON L. [作者：LI WEI LIN; LUO QIU YAN; WU LI QIANG; XIAO LEI,期刊：Heterocycles, 页码：135-141 , 文章类型： Article，,卷期：2011年83-1] Two new flavonol glycosides, Sedacins C (1) and D (2), and two known compounds (3-4), have been isolated from the whole plant of Sedum aizoon L. Their structures have been established as 6 ''-O-(E)-feruloylquercetin (1) ... THE FIRST TOTAL SYNTHESES OF (+)-HOSTMANIN A AND (+)-METHYLLINDERATIN [作者：KITAO JUNKO; KITAMURA NAOKO; KUMO NOZOMI; ARIMITSU KENJI; IWASAKI HIROKI; OZEKI MINORU; KURUME AI; YAMASHITA MASAYUKI,期刊：Heterocycles, 页码：143-151 , 文章类型： Article，,卷期：2011年83-1] The first total syntheses of (+)-hostmanin A (1) and (+)-methyllinderatin (3) were achieved in four steps from a known compound, 1-{2,6-dihydroxy-4-methoxy-3-[(1R,6R)-3-methyl-6-(1-methylethyl)-2-cyclo hexen-1-yl]phenyl}... A CONVENIENT METHOD FOR SYNTHESIS OF 5-CHLORO-2-ARYLOXAZOLE-4-CARBALDEHYDE WITH VILSMEIER REAGENT [作者：JIN CAN; CHEN JUN; SU WEIKE,期刊：Heterocycles, 页码：153-161 , 文章类型： Article，,卷期：2011年83-1] A convenient method for synthesis of 5-chloro-2-aryloxazole-4-carbaldehyde 3 in moderate to good yields had been developed via the Vilsmeier reaction of readily available N-arylglycine 2 at 100 degrees C, provided a nove... PALLADIUM-CATALYZED CYANATION OF ARYL BROMIDES USING PHOSPHINE-FREE PYRIDYL-HYDRAZONE LIGANDS [作者：MINO TAKASHI; KOIZUMI TOMOKO; SHIBUYA MASANORI; HIRAI KIMINORI; SAKAMOTO MASAMI; FUJITA TSUTOMU,期刊：Heterocycles, 页码：163-169 , 文章类型： Article，,卷期：2011年83-1] Palladium-catalyzed cyanation of aryl bromides with potassium hexacyanoferrate(II) trihydrate, K-4[Fe(CN)6]center dot 3H(2)O as the cyanide source gave benzonitrile derivatives using a catalytic amount of Pd(OCOCF3)(2) i... A SIMPLE AND EFFICIENT METHOD FOR SYNTHESIS OF BENZOTHIAZEPINE DERIVATIVES [作者：ITABASHI SAORI; LU RONG; MIYAKOSHI TETSUO,期刊：Heterocycles, 页码：171-177 , 文章类型： Article，,卷期：2011年83-1] A series of 1,5-benzothiazepines were synthesized using disulfides and alpha,beta-unsaturated carbonyl or nitrite compounds as reaction substrates. After reductive cleavage of the S-S bond of disulfides, the resulting th... FACILE SYNTHESIS OF 3-(SUCCINIMID-3-YL)-2-OXO-2,3-DIHYDROIMIDAZO[1,2-a]PYRIDINE DERIVATIVES BY SEQUENTIAL INTRA- AND INTERMOLECULAR MICHAEL REACTIONS BETWEEN 2-AMINOPYRIDINES AND MALEIMIDES [作者：SHIMO TETSURO; ITOH TOMOKO; ARAKI YASUTAKA; IWANAGA TETSUO; SHINMYOZU TERUO; SOMEKAWA KENICHI,期刊：Heterocycles, 页码：47-55 , 文章类型： Article，,卷期：2011年83-1] 3-(Succinimid-3-yl)-2-oxo-2,3-dihydroimidazo[1,2-a]pyridine derivatives (3 and 4) were prepared through a one-pot reaction from 2-aminopyridines (1) by acylation with maleimides (2) and followed by an intramolecular Mich... STRUCTURE-ACTIVITY RELATIONSHIPS ON SENESCENCE-PROMOTING EFFECT OF ARABIDOPSIDES FROM ARABIDOPSIS THALIANA [作者：NAKAJYO HARUYUKI; HISAMATSU YOSUKE; GOTO NOBUHARU; YAMADA KOSUMI; HASEGAWA KOJI; SHIGEMORI HIDEYUKI,期刊：Heterocycles, 页码：57-62 , 文章类型： Article，,卷期：2011年83-1] Arabidopsides A-D and F isolated from Arabidopsis thaliana are rare oxylipins containing 12-oxophytodienoic acid (OPDA) and/or dinor-oxophytodienoic acid (dn-OPDA) which are known as precursors of jasmonic acid (JA) and ... LEWIS ACID PROMOTED DIASTEREOSELECTIVE MANNICH REACTION OF beta-LACTAM - TETHERED ALDIMINES WITH 1-METHOXY-1-TRIMETHYLSILYLOXY-2,2-DIMETHYLETHENE [作者：VAZDAR KATARINA; MARGETIC DAVOR; HABUS IVAN,期刊：Heterocycles, 页码：63-90 , 文章类型： Article，,卷期：2011年83-1] Lewis acid (ZnI2) - promoted Mannich reaction of azetidin-2-one - tethered aldimines 3a-r with silylenol ether 4 in toluene at -20 degrees C afforded a diastereomeric mixture of beta-amino acid esters 5a-r/6a-r. The effe... SYNTHESIS OF NOVEL 5-(PYRIMIDIN-5-YL)-1,2,4-OXADIAZOLE DERIVATIVES VIA A THREE-COMPONENT CYCLOADDITION AND SUBSEQUENT OXIDATIVE DEHYDROGENATION [作者：HUANG TONGHUI; TU HAIYANG; LIU MING; ZHANG AIDONG,期刊：Heterocycles, 页码：91-97 , 文章类型： Article，,卷期：2011年83-1] A new and efficient strategy has been developed for the synthesis of novel 5-(pyrimidin-5-yl)-1,2,4-oxadiazoles with a wide diversity in substituents via Biginelli cycloaddition and subsequent oxidative dehydrogenation. AN EFFICIENT SYNTHESIS OF 3-SUBSTITUTED 3H-ISOBENZOFURAN-1-YLIDENAMINES BY THE REACTION OF 2-CYANOBENZALDEHYDES WITH ORGANOLITHIUMS AND THEIR CONVERSION INTO ISOBENZOFURAN-1(3H)-ONES [作者：KOBAYASHI KAZUHIRO; MATSUMOTO KOTA; KONISHI HISATOSHI,期刊：Heterocycles, 页码：99-106 , 文章类型： Article，,卷期：2011年83-1] A new and efficient synthesis of 3-substituted 3H-isobenzofuran-1-ylidenamines by the reaction of 2-cyanobenzaldehydes with nucleophiles, such as organolithiums or lithium enolates of t-butyl acetate and N,N-dimethylacet...