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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   ONE-POT SYNTHESIS OF MACROCYCLIC DI- AND TETRALACTONES USING [2+2] PHOTOCYCLOADDITION REACTIONS OF DI-2-PYRONES WITH alpha,omega-DIOLEFINS [作者：ZHANG HUI MIN; KAWABATA KAZUYA; MIYAUCHI HIDEKI; SHIMO TETSURO,期刊：Heterocycles, 页码：333-343 , 文章类型： Article，,卷期：2012年85-2] Sensitized photocycloaddition reactions of 6,6'-dimethyl-4,4' -[1,4-bis(methylenoxy)phenylene]-di-pyrone (1) with poly(ethyleneglycol)divinyl ethers (2a, b) or 2,2'-dimethyltrimethylene dimethacrylate (4), together with ... SYNTHESIS AND OPTICAL PROPERTIES OF ZINCKE SALTS HAVING CHIRAL ANIONS [作者：YAMAGUCHI ISAO; MINAMITANI MIKIHIKO; JONAI SACHIKO,期刊：Heterocycles, 页码：345-353 , 文章类型： Article，,卷期：2012年85-2] Zincke salts having chiral anions were obtained by the anion exchange reaction of Zincke salts having a chloride anion with R-(-)- or S-(+)-binaphthylphospholic acid sodium salts (R-BINAP-PO4Na and S-BINAP-PO4Na). The an... ONE-POT SYNTHESES OF 4,8-DIALKYLBENZO[1,2-b:4,5-b']-DITHIOPHENES [作者：PAPPENFUS TED M; SEIDENKRANZ DANIEL T; REINHEIMER ERIC W,期刊：Heterocycles, 页码：355-364 , 文章类型： Article，,卷期：2012年85-2] Two-step, one-pot syntheses are described for the preparation of 4,8-dialkylbenzo[1,2-b:4,5-b']dithiophenes (BDTs) from alkyllithium or alkyl Grignard reagents. The yields for various alkyl groups used in this procedure ... HYDROLYSABLE TANNINS ISOLATED FROM SYZYGIUM AROMATICUM: STRUCTURE OF A NEW C-GLUCOSIDIC ELLAGITANNIN AND SPECTRAL FEATURES OF TANNINS WITH A TERGALLOYL GROUP [作者：BAO LIMING; EERDUNBAYAER; NOZAKI AKIKO; TAKAHASHI EIZO; OKAMOTO KEINOSUKE; ITO HIDEYUKI; HATANO TSUTOMU,期刊：Heterocycles, 页码：365-381 , 文章类型： Article，,卷期：2012年85-2] Eighteen hydrolysable tannins, including a new C-glucosidic tannin named aromatinin A (1), were isolated from an aqueous acetone extract of dried flower buds of Syzygium aromaticum Merr. et Perry. We determined that 1 ha... INVESTIGATION ON AMINO-HECK CYCLIZATION OF 1-(2-VINYLCYCLOHEXYL)KETONE DIETHYL PHOSPHINYLOXIMES [作者：TSAO SHENGWEI; ZHU JIALIANG,期刊：Heterocycles, 页码：383-401 , 文章类型： Article，,卷期：2012年85-2] Upon the treatment with Pd(PPh3)4 and Et3N in DMF at 80 degrees C, a range of trans-1-(2-vinylcyclohexyl)-substituted ketone diethylphosphinyloximes underwent the cyclization in a 6-endo pathway to afford 1-substituted t... A FACILE SYNTHESIS OF 6-SUBSTITUTED 7-ARYLTHIENO[2,3-b]-PYRAZINES FROM 2-CHLOROPYRAZINE [作者：KOBAYASHI KAZUHIRO; SUZUKI TERUHIKO,期刊：Heterocycles, 页码：403-411 , 文章类型： Article，,卷期：2012年85-2] A series of 6,7-disubstituted thieno[2,3-b]pyrazines were prepared by two- or three-pot reaction sequences starting from commercially available 2-chloropyrazine. The reaction of 2-chloro-3-lithiopyrazine with N,N-dimethy... TUMONOIC ACIDS K AND L, NOVEL METABOLITES FROM THE MARINE-DERIVED FUNGUS PENICILLIUM CITRINUM [作者：CHEN LI; HUANG KAI; ZHONG PING; HU XIAO; FANG ZHEXIANG; WU JIULIN; ZHANG QIQING,期刊：Heterocycles, 页码：413-419 , 文章类型： Article，,卷期：2012年85-2] Three new compounds, namely tumonoic acids K (1), L (2), and methyl 2-(2-acetyl-3,5-dihydroxy-4,6-dimethylphenyl)acetate (3), together with nine known compounds, were isolated from the marine-derived fungus Penicillium c... PEG-400-PROMOTED AND ULTRASOUND-ASSISTED RAP-STOERMER REACTTION FOR EFFICIENT SYNTHESIS OF BENZOFURAN-2-YL(CARBAZOLY)METHANONE DERIVATIVES [作者：LI YANG; YAN YAN; GAO WENTAO,期刊：Heterocycles, 页码：421-429 , 文章类型： Article，,卷期：2012年85-2] A facile synthesis of hitherto unreported (9-methyl-9H-carbazole-3,6-diyl)bis(benzofuran-2-yl-methanone)s (3a-t) is described, featuring the PEG-400-promoted and ultrasound-assisted Rap-Stoermer reaction of 3,6-dichloroa... SYNTHESIS OF 3-CYANOPYRAZOLES FROM 3-TRIFLUOROMETHYLPYRAZOLES VIA DIRECT AMMONOLYSIS REACTION [作者：YAN TAO; CHEN YANHONG; WANG JIA; XIE YUYUAN; YANG CHUNHAO,期刊：Heterocycles, 页码：431-439 , 文章类型： Article，,卷期：2012年85-2] A simple and green method to prepare 3-cyanopyrazoles in aqueous ammonia from easy-obtained 3-trifluoromethyl-pyrazoles was explored. Most substrates got acceptable yields. The hydrogen position of Nl-H on cyanopyrazoles... AN EFFICIENT ONE-POT SYNTHESIS OF 1-AMINO-3-CYANO-4-ARYL-10-ETHOXYCARBONYLAZULENO[2,1-b]]PYRANS [作者：WANG DAOLIN; FENG SHANSHAN; CUI QINGTAO; YU JIAYI,期刊：Heterocycles, 页码：441-448 , 文章类型： Article，,卷期：2012年85-2] An efficient and easy method for the one-pot three-component synthesis of 2-amino-3-cyano-4-aryl-10-ethoxycarbonylazuleno[2,1-b]pyran derivatives by the three-componenet condensation of ethyl 2-hydroxyazulene-1-carboxyla... ROLE OF IONIC LIQUIDS AS SUPPORTS OF CATALYSTS [作者：HAGIWARA HISAHIRO,期刊：Heterocycles, 页码：281-297 , 文章类型： Article，,卷期：2012年85-2] Chemically stable and independent properties of an ionic liquid has been utilized as a liquid support for immobilization of homogeneous or heterogeneous catalysts by simply dissolving or suspending in an ionic liquid. Af... ASYMMETRIC SYNTHESIS OF (-)-MURICATACIN'S ANALOGUE (4S,5R)-5-HYDROXY-4-OCTADECANOLIDE EXHIBITING THE CYTOTOXICITY AGAINST ESPHAGEAL CANCER CELLS [作者：TSAI YOWFU; HUANG CHIENCHENG; LIN SHIAUHAN; SU PEIMEI; CHEN YINGJU; WU TZONGYUAN,期刊：Heterocycles, 页码：299-304 , 文章类型： Article，,卷期：2012年85-2] An efficient and facile synthesis, in six steps and 50% overall yield from commercial D-(-)-lyxose as starting material via twice Wittig olefination and one-pot deisopropylidenation and intramolecular lactonization, of t... NOVEL REARRANGEMENTS OF A 8aH-PYRIDO[1,2-d]THIENO-[2 ',3 '-b][1,4]THIAZEPINE DERIVATIVE [作者：KAKEHI AKIKAZU; ITOH KENNOSUKE; SUGA HIROYUKI; OHKUBO YUUKI; KOBAYASHI AYAKA; NISHI TAKASHI,期刊：Heterocycles, 页码：305-U12 , 文章类型： Article，,卷期：2012年85-2] The reaction of 5-ethoxycarbonyl-3-[1-(4-methylpyridinio)]-4-phenythiopene-2-thiolate with dimethyl acetylenedicarboxylate in refluxing chloroform or tetrahydrofuran afforded the corresponding 10H-pyrrolo[1,2-d]-thieno[2... SCOPE AND LIMITATIONS OF A MODIFIED HANTZSCH REACTION FOR THE SYNTHESIS OF OXAZOLE-DEHYDROAMINO ACID DERIVATIVES FROM DEHYDROAMINO ACID AMIDES [作者：NAGAYA AKIHIRO; YAMAGISHI YOJI; YONEZAWA YASUCHIKA; AKAI SHOJI; SHIN CHUNGGI; SATO KENICHI,期刊：Heterocycles, 页码：313-331 , 文章类型： Article，,卷期：2012年85-2] A variety of oxazole derivatives that possess an alpha,beta-unsaturated substituent at the 2-position were conveniently synthesized in good yields via a Hantzsch-type reaction between dehydroamino acid amides and P-bromo...