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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24条记录   Rolf Huisgen's Profound Adventures in Chemistry [作者：Houk, KN,期刊：Helvetica Chimica Acta, 页码：1241-1260 , 文章类型： Biographical-Item，,卷期：2010年93-7] Efficient Total Synthesis of Racemic Bisabolane Sesquiterpenes Curcuphenol and Xanthorrhizol Starting from Substituted Acetophenones [作者：Montiel, LE; Zepeda, LG; Tamariz, J,期刊：Helvetica Chimica Acta, 页码：1261-1273 , 文章类型： Article，,卷期：2010年93-7] A total synthesis of natural bisabolane sesquiterpenes curcuphenol (1) and xanthorrhizol (2) was developed by using the substituted acetophenones 4 and 5, respectively, as starting materials. The acetyl group of the latt... Hydriodic Acid-Mediated Cyclization of alpha-Substituted Secondary 2-Ethenylbenzamides: Synthesis of 2-Substituted 2,3-Dihydro-3,3-dimethyl-1H-isoindol-1-ones and 3,3-Disubstituted (E)-1-(Arylimino)-1,3-dihydroisobenzofurans [作者：Kobayashi, K; Fujita, S; Nakai, D; Fukumoto, S; Fukamachi, S; Konishi, H,期刊：Helvetica Chimica Acta, 页码：1274-1280 , 文章类型： Article，,卷期：2010年93-7] A new and facile method for the preparation of 2-substituted 2,3-dihydro-3,3-dimethyl-1H-isoindol-1-ones 3 and 3,3-disubstituted (E)-1-(arylimino)-1,3-dihydroisobenzofurans 6 has been developed. Thus, treatment of N-alky... The Biomimetic Synthesis and Final Structure Determination of (+)- and (-)-Centrolobine, Naturally Occurring Diarylheptanoid 2,6-cis-Disubstituted Tetrahydro-2H-pyrans [作者：Rogano, F; Ruedi, P,期刊：Helvetica Chimica Acta, 页码：1281-1298 , 文章类型： Article，,卷期：2010年93-7] The enantiomerically pure title compounds were prepared by oxidative cyclization of their optically active diarylheptanoid precursors. The approach is considered as a biomimetic phenol oxidation via an intermediate quino... The Biomimetic Synthesis and First Characterization of the (+)- and (-)-Isocentrolobines, 2,6-cis- and 2,6-trans-Disubstituted Tetrahydro-2H-pyrans [作者：Rogano, F; Froidevaux, G; Ruedi, P,期刊：Helvetica Chimica Acta, 页码：1299-1312 , 文章类型： Article，,卷期：2010年93-7] The four stereoisomers of the novel title compounds were prepared by oxidative cyclization of their enantiomerically pure diarylheptanoid precursors by means of the straightforward biomimetic approach presented in the pr... In- and Out-of-Cavity Interactions by Modulating the Size of Ruthenium Metallarectangles [作者：Barry, NPE; Furrer, J; Therrien, B,期刊：Helvetica Chimica Acta, 页码：1313-1328 , 文章类型： Article，,卷期：2010年93-7] Cationic (arene)ruthenium-based tetranuclear complexes of the general formula [Ru-4(eta(6)-p-cymene)(4)(mu-N boolean AND N)(2)(mu-OO boolean AND OO)(2)](4+) were obtained from the dinuclear (arene)ruthenium complexes [Ru... New Cembrane Diterpenes from Taiwanese Soft Coral Sinularia flexibilis [作者：Lo, KL; Khalil, AT; Chen, MH; Shen, YC,期刊：Helvetica Chimica Acta, 页码：1329-1335 , 文章类型： Article，,卷期：2010年93-7] A chemical investigation of the Taiwanese soft coral Sinularia flexibilis has resulted in the isolation of three new cembrane diterpenes designated sinuladiterpenes G-1 (1-3, resp.). The structures of 1-3 were determined... Multicomponent Reactions of Furan-2,3-diones: Synthesis and Characterizations of Furo[3,2-c]pyran-4-ones [作者：Koca, I; Yildirim, I; Sahin, E,期刊：Helvetica Chimica Acta, 页码：1336-1343 , 文章类型： Article，,卷期：2010年93-7] Furo[3,2-c]pyran-4-ones, which possess a natural-product skeleton, are synthesized via a simple, one-pot, three-component reaction of furan-2,3-diones with dialkyl acetylenedicarboxylates and Ph3P. Three New Sesquiterpenoids from Echinops ritro L. [作者：Li, LB; Ren, J; Cheng, ZM; Zhu, HJ,期刊：Helvetica Chimica Acta, 页码：1344-1349 , 文章类型： Article，,卷期：2010年93-7] From the whole plants of E. ritro L., the three new sesquiterpenoids (3 alpha,4 alpha,6 alpha)-3,13-dihydroxyguaia-7(11),10(14)-dieno-12,6-lactone (1), (3 alpha,4 alpha,6 alpha,11 beta)-3-hydroxyguai-1(10)-eno-12,6-lacto... A Novel and Regiospecific Synthesis of 1-Aryl-1H-benzotriazoles via Copper(I)-Catalyzed Intramolecular Cyclization Reaction [作者：Liu, QL; Wen, DD; Hang, CC; Li, QL; Zhu, YM,期刊：Helvetica Chimica Acta, 页码：1350-1354 , 文章类型： Article，,卷期：2010年93-7] 1-Aryl-1H-benzotriazole derivatives were synthesized via intramolecular cyclization of easily obtained triazenes, using CuI as the catalyst. DMSO as the solvent, t-BuONa as the base, and 1,10-phenanthroline as the ligand... Triterpenoids from the Stems of Momordica charantia [作者：Chen, CR; Liao, YW; Shih, WL; Tzeng, CY; Cheng, HL; Kao, WT; Chang, CI,期刊：Helvetica Chimica Acta, 页码：1355-1361 , 文章类型： Article，,卷期：2010年93-7] Two new cucurbitane triterpenes, (23E)-7 beta-methoxycucurbita-5.23,25-trien-3 beta-ol (1) and 23,25-dihydroxy-5 beta,19-epoxycucurbit-6-ene-3,24-dione (2). and a new D :C-friedoolcanane triterpene. 3 alpha-[(E)-feruloyl... Stereoselectiye Total Synthesis of Goniothalesdiol A via Chiron Approach [作者：Yadav, JS; Rao, RN; Somaiah, R; Harikrishna, V; Reddy, BVS,期刊：Helvetica Chimica Acta, 页码：1362-1368 , 文章类型： Article，,卷期：2010年93-7] The stereocontrolled synthesis of goniothalesdiol A. a dihydroxylated tetrahydropyran compound, has been accomplished using D-ribose as chiral precursor. The key steps involved are aryl Grignard reaction, stereoselective... New Lactone and Xanthone Derivatives Produced by a Mangrove Endophytic Fungus Phoma sp SK3RW1M from the South China Sea [作者：Pan, JH; Deng, JJ; Chen, YG; Gao, JP; Lin, YC; She, ZG; Gu, YC,期刊：Helvetica Chimica Acta, 页码：1369-1374 , 文章类型： Article，,卷期：2010年93-7] A new lactone, 1,8-dihydroxy-10-methoxy-3-methyldibenzo[b,e]oxepine-6,11-dione (1), and two new xanthones, 1-hydroxy-8-(hydroxymethyl)-6-methoxy-3-methyl-9H-xanthen-9-one (2) and 1-hydroxy-8-(hydroxymethyl)-3-methoxy-6-m... Phosphomolyhdic Acid (PMA)-SiO2 as a Heterogeneous Solid Acid Catalyst for the One-Pot Synthesis of 2H-Indazolo[1,2-b]phthalazine-triones [作者：Sabitha, G; Srinivas, C; Raghavendar, A; Yadav, JS,期刊：Helvetica Chimica Acta, 页码：1375-1380 , 文章类型： Article，,卷期：2010年93-7] Phosphomolybdic acid (PMA)-SiO2 was found to be an efficient catalyst for the three-component condensation reaction of phthalhydrazide. 1,3-diketone, and aldehydes to produce 2H-indazolo[1,2-b]phthalazine-triones in exce... A New Lycopodine Alkaloid from Phlegmariurus yunnanensis CHING [作者：Xie, XY; Jiang, JH; Liu, Y; Min, K; Xue, YM; Jing, B; Zhang, Y; Chen, YG,期刊：Helvetica Chimica Acta, 页码：1381-1384 , 文章类型： Article，,卷期：2010年93-7] A new lycopodine alkaloid, 15 alpha-methyllycopodane-5 beta,6 beta-diol N-oxide (1), was isolated from the whole plants of Phlegmariurus yumumensis CHING, together with the two known alkaloids 15 alpha-methyllycopodane-5... New Approaches to 6-Oxoisoaporphine and Tetrahydroisoquinoline Derivatives [作者：Sobarzo-Sanchez, E; Uriarte, E; Santana, L; Tapia, RA; Lourido, PP,期刊：Helvetica Chimica Acta, 页码：1385-1394 , 文章类型： Article，,卷期：2010年93-7] 2,3-Dihydro-6-hydroxy-5-methoxy-7H-dibenzo[de,h]quinolin-7-one, 6-hydroxy-5-methoxy-7H-dibenzo[de,h]quinolin-7-one, and 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-l-yl)benzyl benzoate, easily available by a Bischler-Napiera...