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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72条记录   A straightforward synthesis of pyran[2',3':4,5]furo[3,2-b]pyran from furan. [作者：Aljarilla, Ana;Plumet, Joaquin;,期刊：Heterocycles, 页码：827-832 , 文章类型： 研究论文，,卷期：2008年76-1] A convenient synthesis of the title compd. and the related lactone, pyran[2',3':4,5]furo[3,2-b]pyran-8,9-dione, was achieved through a sequence involving a Diels-Alder reaction with vinylene carbonate followed by a ring-... Facile synthesis of diarylmethylpyridines/diarylmethylquinolines through superelectrophilic activation of pyridinecarboxaldehydes/quinolinecarboxaldehydes with boron trifluoride monohydrate. [作者：Prakash, G. K. Surya;Paknia, Farzaneh;Chacko, Sujith;Mathew, Thomas;Olah, George A.;,期刊：Heterocycles, 页码：783-799 , 文章类型： 研究论文，,卷期：2008年76-1] The synthesis of (diarylmethyl)pyridines and -quinolines was achieved by Friedel-Crafts hydroxyalkylation of pyridine- and quinolinecarboxaldehydes, resp., with arom. compds. under super-electrophilic activation using BF... Effect of the use of bulky alkylphosphines in the Sonogashira coupling with aqueous ammonia. [作者：Fukuoka, Sachio;Naito, Tetsuro;Sekiguchi, Hiroki;Somete, Takashi;Mori, Atsunori;,期刊：Heterocycles, 页码：819-826 , 文章类型： 研究论文，,卷期：2008年76-1] The Sonogashira coupling of terminal alkynes and aryl bromides with aq. NH3 catalyzed by the in-situ formed palladium complex of a bulky alkylphosphine furnishes the coupling product at room temp. One-pot reaction of th... Stereoselective synthesis of pyrrolidin-3-ols from homoallylamines. [作者：Medjahdi, Mohamed;Gonzalez-Gomez, Jose C.;Foubelo, Francisco;Yus, Miguel;,期刊：Heterocycles, 页码：569-581 , 文章类型： 研究论文，,卷期：2008年76-1] The reaction of enantiomerically pure N-tert-butylsulfinyl homoallylamines, easily prepd. by indium mediated allylation of the corresponding N-tert-butylsulfinyl aldimines (R)- or (S)-RCH:NS(O)CMe3 (R = Me2CH, octyl, PhC... Synthesis of (-)-talaumidin, a neurotrophic 2,5-biaryl-3,4-dimethyltetrahydrofuran lignan, and its stereoisomers. [作者：Fukuyama, Yoshiyasu;Harada, Kenichi;Esumi, Tomoyuki;Hojyo, Daisuke;Kujime, Yumemi;Kubo, Naoko;Kubo, Miwa;Hioki, Hideaki;,期刊：Heterocycles, 页码：551-567 , 文章类型： 研究论文，,卷期：2008年76-1] The enantioselective total synthesis of a neurotrophic (-)-talaumidin was achieved in 16 steps from 4-benzyloxy-3-methoxybenzaldehyde in ~11% overall yield. The synthesis features the construction of the 2 successive ch... Asymmetric oxidation of cyclic sulfides catalyzed by an aluminum(salalen) complex as the catalyst. [作者：Matsumoto, Kazuhiro;Yamaguchi, Tetsufumi;Katsuki, Tsutomu;,期刊：Heterocycles, 页码：191-196 , 文章类型： 研究论文，,卷期：2008年76-1] The authors reported a catalytic asym. oxidn. of cyclic sulfides that uses a combination of aluminum(salalen) complex as the catalyst and aq. hydrogen peroxide as the oxidant. Oxidns. of six-membered cyclic sulfides, th... Synthetic studies on Mycobacterium tuberculosis specific fluorescent Park's nucleotide probe. [作者：Li, Kai;Kurosu, Michio;,期刊：Heterocycles, 页码：455-469 , 文章类型： 研究论文，,卷期：2008年76-1] An efficient synthesis of N-glycolyl Park's nucleotide, a Mycobacterium tuberculosis (Mtb) specific peptidoglycan precursor, analog-fluorescein conjugate, is achieved. A fluorescent conjugated Mtb Park's nucleotide anal... Synthesis of 11C-labeled uracil derivative for a pet tracer targeting thymidine phosphorylase. [作者：Takahashi, Masayuki;Seki, Koh-ichi;Nishijima, Ken-ichi;Kuge, Yuji;Tamaki, Nagara;Ohkura, Kazue;,期刊：Heterocycles, 页码：237-241 , 文章类型： 研究论文，,卷期：2008年76-1] Compounds (More Than One Hetero Atom)) Section The expression of thymidine phosphorylase (TP) is closely assocd. with angiogenesis in tumors. For developing a TP-expression-based positron emission tomog. (PET) radiotrac... Cycloaddition of 2-pyridones having an electron-withdrawing group. [作者：Hoshino, Masato;Matsuzaki, Hisao;Fujita, Reiko;,期刊：Heterocycles, 页码：267-273 , 文章类型： 研究论文，,卷期：2008年76-1] (Heterocyclic Compounds (More Than One Hetero Atom)) Section Cycloaddn. of 1-methyl-2(1H)-pyridones bearing an electron-withdrawing group at 3-5 positions acting as the diene with N-phenylmaleimide was carried out under ... Synthesis of chiral tetrahydroisoquinoline-derived b-amino alcohols and their application to asymmetric reaction. [作者：Hari, Yoshiyuki;Sakuma, Masaki;Miyakawa, Ayako;Hatano, Keiichiro;Aoyama, Toyohiko;,期刊：Heterocycles, 页码：305-311 , 文章类型： 研究论文，,卷期：2008年76-1] Three chiral 1,2,3,4-tetrahydroisoquinoline-derived b-amino alcs. I (R = H, Me, Ph) were synthesized using the Ru-catalyzed asym. transfer hydrogenation of 6-methoxy-1-(2-methoxyphenethyl)-3,4-dihydroisoquinoline as the ... Copper-catalyzed N-arylation reaction of 2-azabicyclo[2.2.1]hept-5-en-3-one with arylboronic acids under microwave irradiation. [作者：Abe, Takumi;Takeda, Hiroyuki;Yamada, Koji;Ishikura, Minoru;,期刊：Heterocycles, 页码：133-136 , 文章类型： 研究论文，,卷期：2008年76-1] Copper-catalyzed N-arylation reaction of 2-azabicyclo[2.2.1]hept-5-en-3-one with arylboronic acids was successively performed in the presence of KOH and trimethylamine-N-oxide under microwave irradn. Flavisiamines E-F and fruticosiamine a, new methyl chanofruticosinate- and aspidofractinine-type indole alkaloids, from two species of Kopsia. [作者：Sekiguchi, Mitsuhiro;Hirasawa, Yusuke;Zaima, Kazumasa;Hoe, Teh Chin;Chan, Kit-Lam;Morita, Hiroshi;,期刊：Heterocycles, 页码：867-874 , 文章类型： 研究论文，,卷期：2008年76-1] Two new Me chanofruticosinate-type indole alkaloids, flavisiamines E and F, and an aspidofractinine-type indole alkaloid, fruticosiamine A, were isolated from Kopsia flavida and K. fruticosa, resp. and their structures w... Total synthesis of spiruchostatin A, a potent histone deacetylase inhibitor. [作者：Takizawa, Toshiya;Watanabe, Kazuhiro;Narita, Koichi;Kudo, Kyosuke;Oguchi, Takamasa;Abe, Hideki;Katoh, Tadashi;,期刊：Heterocycles, 页码：275-290 , 文章类型： 研究论文，,卷期：2008年76-1] Total synthesis of spiruchostatin A, a potent histone deacetylase inhibitor, was achieved. The method features (i) Julia-Kocienski olefination of a tetrazolyl sulfone with an appropriate aldehyde to install the requisit... Synthesis of functionalized b-cyclodextrins by "click chemistry". [作者：Ke, Chenfeng;Yang, Cheng;Yang, Zixin;Wu, Weijia;Mori, Tadashi;Inoue, Yoshihisa;Liu, Yu;,期刊：Heterocycles, 页码：155-160 , 文章类型： 研究论文，,卷期：2008年76-1] Two new b-cyclodextrins (b-CDs) modified with chromophore were synthesized in high yields through Huisgen 1,3-dipolar cycloaddn. The amt. of Cu catalyst was demonstrated to be a key factor that dets. the yield of the 1,... An efficient synthetic route for a versatile ciliapterin derivative and the first ciliapterin D-mannoside synthesis. [作者：Hanaya, Tadashi;Baba, Hiroki;Kanemoto, Mitsunori;Yamamoto, Hiroshi;,期刊：Heterocycles, 页码：635-644 , 文章类型： 研究论文，,卷期：2008年76-1] The key precursor, N2-[(dimethylamino)methylene]-1'-O-(4-methoxybenzyl)-3-[2-(4-nitrophe nyl)ethyl]ciliapterin (I) was efficiently prepd. from D-xylose via an improved route. The first synthesis of 2'-O-(a-D-mannopyrano... Total synthesis of isoindolobenzazepine alkaloids, lennoxamine and chilenine, based on palladium-catalyzed reduction of alkenyl phosphates. [作者：Fuwa, Haruhiko;Sasaki, Makoto;,期刊：Heterocycles, 页码：521-539 , 文章类型： 研究论文，,卷期：2008年76-1] An efficient method for the synthesis of enol ethers and ene carbamates was developed based on Pd(0)-catalyzed chemoselective redn. of alkenyl phosphates. This method was applied successfully to the total synthesis of l...