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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15条记录   N-15 NMR SPECTROSCOPY OF ANNULATED Delta(2)-PYRAZOLINES AND Delta(2)-1,2,4-TRIAZOLINES [作者：RECCA TERESA; DE BENASSUTI LARA; MOLTENI GIORGIO,期刊：Heterocycles, 页码：407-412 , 文章类型： Article，,卷期：2010年81-2] Enantiopure Delta(2)-pyrazolines and Delta(2)-1,2,4-triazolines fused to the 1,4-benzodiazepine moiety, as well as Delta(2)-pyrazolines annulated to the 1,5-benzoxazocine moiety (racemic) or inserted in a bis-1,3-pyrazol... FACILE SYNTHESIS OF 3-METHOXYCARBONYL-2,2,5,5-TETRAMETHYLPYRROLIDINE-1-OXYL AND DERIVATIVES [作者：HATANO BUNPEI; ARAYA HIROKI; YOSHIMURA YUTAKA; SATO HARUNA; ITO TOMOHIRO; OGATA TATEAKI; KIJIMA TATSURO,期刊：Heterocycles, 页码：349-356 , 文章类型： Article，,卷期：2010年81-2] We have achieved an efficient alternative synthesis of blood-brain-barrier permeable nitroxyl radicals 3-methoxycarbonyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (1a) and 3-ethoxycarbonyl-2,2,5,5-tetramethylpyrrolidine-1-ox... A CONCISE SYNTHESIS OF FLUORINE-CONTAINING BENZO[h]QUINOLINES AND BENZO[h]QUINOLONES BY SELECTIVE PYRIDINE AND PYRIDINONE RINGS FORMATION REACTIONS OF N-PROPARGYL-2,4-BIS(TRIFLUOROACETYL)-1-NAPHTHYLAMINE WITH VARIOUS ACTIVE METHYLENE COMPOUNDS [作者：OKADA ETSUJI; SHIBATA DAI; TSUKUSHI NORIKADO; DOHURA MASATO; OTA NORIO; ADACHI SATORU; MEDEBIELLE MAURICE,期刊：Heterocycles, 页码：357-370 , 文章类型： Article，,卷期：2010年81-2] N-Propargyl-2,4-bis(trifluoroacetyl)-l-naphthylamine (3) underwent nitrogen-containing heterocyclic ring-formation reactions with a variety of active methylene compounds in the presence of sodium alkoxides. This annulati... SYNTHESIS OF A 6H-CHROMENO[3,4-b]QUINOLINE AND A 6a,12a-DEHYDRO-7-AZAROTENOID [作者：MORRIS ANDREW L C; JACKSON YVETTE A,期刊：Heterocycles, 页码：371-380 , 文章类型： Article，,卷期：2010年81-2] The preparation of a 6H-chromeno[3-4-b]quinoline via a palladium-mediated coupling reaction, and the first synthesis of a nitrogenous dehydro-analogue of the naturally Occurring rotenoids are reported. SYNTHESIS OF 20-EPI-ELDECALCITOL [20-EPI-1 alpha,25-DIHYDROXY-2 beta-(3-HYDROXYPROPOXY)VITAMIN D-3: 20-EPI-ED-71] [作者：YOSHINO MADOKA; ETO KOHEI; TAKAHASHI KEISUKE; ISHIHARA JUN; HATAKEYAMA SUSUMI; ONO YOSHIYUKI; SAITO HITOSHI; KUBODERA NOBORU,期刊：Heterocycles, 页码：381-394 , 文章类型： Article，,卷期：2010年81-2] A convergent synthesis of biologically interesting 20-epi-eldecalcitol which possesses an inverted C-21 methyl substituent at the 20-position of the side chain of 1 alpha,25-dihydroxy-2 beta-(3-hydroxypropoxy)vitamin D-3... SYNTHESIS OF SOME NEW PYRIDAZINYLSPIROHETARYLINDOLES AND HETARYLPYRIDAZINE DERIVATIVES [作者：GABR YASSIN; ABDELMEGID MOHAMED; AWAS MOHAMED ABDELHAMID; ABDELFATAH NASER MOHAMED,期刊：Heterocycles, 页码：395-406 , 文章类型： Article，,卷期：2010年81-2] Condensation of 4-acetyl-5,6-diphenylpyridazine-3(2H)-one (1) with 1H-indol-2,3-dione afforded the biheterocyclic enone 2. Interaction of 2 with some bifunctional nitrogen nucleophiles and dimedone yielded some novel pyr... S-METHYLATION OF N-CONTAINING HETEROCYCLIC THIOLS WITH CONJUGATED ACIDS OF METHOXY GROUPS [作者：SHIMIZU MASAO; SHIMAZAKI TERUAKI; KON YOSHIHIRO; KONAKAHARA TAKEO,期刊：Heterocycles, 页码：413-420 , 文章类型： Article，,卷期：2010年81-2] 2-Mercaptopyridine-3-carboxylic acid reacts with methanol Under acidic conditions to afford the corresponding S-methylated methyl ester, methyl 2-methylthiopyridine-2-carboxylate. Such S-methylation Occurred for Various ... SYNTHESIS OF OPTICALLY ACTIVE gamma-VALEROLACTONE AND gamma-NONANOLACTONE VIA OPTICAL RESOLUTION USING CHIRAL AMINE DERIVED FROM AMINO ACID [作者：YUMOTO KENICHI; HASEGAWA MORIFUMI; TOSHIMA HIROAKI,期刊：Heterocycles, 页码：421-431 , 文章类型： Article，,卷期：2010年81-2] Optically active gamma-valerolactone and gamma-nonanolactone have been synthesized via optical resolution using a newly developed chiral airline derived from L-phenylalanine. Both racemic gamma-lactones were transformed ... SYNTHESIS OF 1-(1-ARYLSULFANYLALKYL)INDOLES AND 2,2-BIS[1-(1-ARYLSULFANYLALKYL)INDOL-3-YL]PROPANES BY ACID-CATALYZED REACTIONS OF INDOLES WITH ARYL VINYL SULFIDES [作者：KOBAYASHI KAZUHIRO; SHIRAI YUU; FUKAMACHI SHUHEI; KONISHI HISATOSHI,期刊：Heterocycles, 页码：433-439 , 文章类型： Article，,卷期：2010年81-2] We report a facile synthesis of 1-(1-arylsulfanylalkyl)indoles and 2,2-bis[1-(1-arylsulfanylalkyl)indol-3-yl]propanes under mild conditions. Thus, treatment of 3-substituted indoles with aryl vinyl sulfides in dichlorome... CEPHASTIGIAMIDE A, AND ANTIPLASMODIAL ACTIVITY OF CEPHALOTAXUS ALKALOIDS FROM CEPHALOTAXUS HARRINGTONIA FORMA FASTIGIATA [作者：MORITA HIROSHI; NAGAKURA YUTA; HOSOYA TAKAHIRO; EKASARI WIWIED; WIDYAWARUYANTI ATY; MORIYASUMOTO KANAMI; SEKITA SETSUKO; HIRASAWA YUSUKE,期刊：Heterocycles, 页码：441-450 , 文章类型： Article，,卷期：2010年81-2] A new Cephalotaxus alkaloid, cephastigiamide A (1), has been isolated from the leaves of Cephalotaxus harringtonia forma fastigiata and the structure was elucidated by 2D NMR analysis and chemical degradation. Harrington... TOTAL SYNTHESIS OF STRYCHNINE [作者：MORI MIWAKO,期刊：Heterocycles, 页码：259-292 , 文章类型： Review，,卷期：2010年81-2] Strychnine is one of the most famous and complex natural products in its size. Woodward succeeded in the total synthesis of (-)-strychnine in 1954, but there were no other reports of the total synthesis of strychnine for... STEREOSELECTIVE INTRAMOLECULAR CYCLIZATION OF ISOPENTENYL BENZAMIDE VIA pi-ALLYLPALLADIUM COMPLEX CATALYZED BY Pd(0) [作者：JOO JAEEUN; MU YU; LEE YIUSUK; TIAN YONGSHOU; LEE GYUJIN; HAM WONHUN,期刊：Heterocycles, 页码：293-304 , 文章类型： Article，,卷期：2010年81-2] Ail efficient procedure was developed to synthesize oxazoline as key intermediate in the total synthesis of (+)-lactacystin using palladium(0)-catalyzed intramolecular cyclization of isopentenyl benzamide via a pi-allylp... FROM 2,3-, 2,6-, 3,4- AND 4,6-DICHLOROQUINOLINES TO ISOMERIC CHLOROQUINOLINESULFONYL CHLORIDES [作者：MARCINIEC KRZYSZTOF; MASLANKIEWICZ ANDRZEJ,期刊：Heterocycles, 页码：305-316 , 文章类型： Article，,卷期：2010年81-2] The action of sodium methanethiolate (in boiling DMF) on x,y-dichloroquinolines (1) (x=3 or 6, y=2 or 4) occured via chlorine ipso-substitution followed by methanethiolato-S-demthylation to yield x,y-quinolinedithiolates... ONE-POT ARYL-1,4-THIOMORPHOLINE 1,1-DIOXIDE SYNTHESIS VIA DOUBLE 1,4-ADDITION OF IN SITU REDUCED NITROARENES TO DIVINYL SULFONES [作者：HAN JOON HEE; CHOI JAEHWAN; JUN YOUNG MOO; LEE BYUNG MIN; KIM BYEONG HYO,期刊：Heterocycles, 页码：317-327 , 文章类型： Article，,卷期：2010年81-2] One-pot reduction-triggered double aza-Michael type 1,4-addition reactions of various nitroarenes to divinyl sulfones were investigated. In the presence of indium/AcOH in MeOH or in sat. aq NH4Cl/MeOH, nitroarenes and di... CYCLIZATION OF 5-CYANO-6-CYANOIMINO-3,4-DIHYDROPYRIDIN-2(1H)-ONES WITH AMINES [作者：MONT NURIA; CARRION FRANCISCO; BORRELL JOSE I; TEIXIDO JORDI,期刊：Heterocycles, 页码：329-347 , 文章类型： Article，,卷期：2010年81-2] The cyclization of 5-cyano-6-cyanoimino-3,4-dihydropyridin-2(1h)-ones with amines, leading to pyrido[2,3-d]pyrimidines, is studied. Four play all important role oil the direction of cyclization: (1) the planarity of the ...