- On the Reactions of Furan-2,3-diones with Oxindole (=1,3-Dihydro-2H-indol-2-one) and Lawesson Reagent. Synthesis of New 1,3-Dihydro-2H-indol-2-ones, Bis-furanones, and Bis-pyrrolones
[作者：Korkusuz, E; Yildirim, I,期刊：Helvetica Chimica Acta, 页码：801-810 , 文章类型： Article，,卷期：2011年94-5]
- Lactone analogues of 3-substituted oxindoles (= 1,3-dihydro-2H-indol-2-ones) and nonbenzoid oxa-analogous isoindigoid or nonbenzoid isoindigoid dyes were prepared by the reactions of furan-2,3-diones with oxindole and La...
- ent-Kaurane Diterpenes and Further Constituents from Wedelia trilobata
[作者：Qiang, Y; Du, DL; Chen, YJ; Gao, K,期刊：Helvetica Chimica Acta, 页码：817-823 , 文章类型： Article，,卷期：2011年94-5]
- Two new ent-kaurane diterpenes, wedelidins A (8) and B (9), together with eighteen other constituents, including the sesquiterpenoids 1 and 2, ent-kaurane diterpenes 3 - 7, triterpenoids 10 and 11, steroids 12 - 14, and ...
- Organic Reaction in Water: A Highly Efficient and Environmentally Friendly Synthesis of Spiro Compounds Catalyzed by L-Proline
[作者：Dabiri, M; Tisseh, ZN; Nobahar, M; Bazgir, A,期刊：Helvetica Chimica Acta, 页码：824-830 , 文章类型： Article，,卷期：2011年94-5]
- We have developed a clean, simple and efficient method for the synthesis of spiro compounds by three-component reaction of isatins (= 1H-indole-2,3-diones) or acenaphthylene-1,2-dione, 1,3-diphenyl-1H-pyrazoles-5-amines,...
- A Facile Synthesis of 2-Imino-4-methylene-1,3-dithiolanes
[作者：Yavari, I; Beheshti, S,期刊：Helvetica Chimica Acta, 页码：831-834 , 文章类型： Article，,卷期：2011年94-5]
- A one-pot synthesis of 2-imino-4-methylidene-1,3-dithiolanes via a three-component reaction of propargyl bromide (= 3-bromoprop-1-yne), primary amines, and carbon disulfide (CS2) is described.
- Dicitrinol, a Citrinin Dimer, Produced by Penicillium janthinellum
[作者：Marinho, AMD; Rodrigues-Fo, E,期刊：Helvetica Chimica Acta, 页码：835-841 , 文章类型： Article，,卷期：2011年94-5]
- A citrinin dimer, named dicitrinol (3), was isolated from extracts obtained from a rice cultivation of Penicillium janthinellum, a fungus found in fruits of Melia azedarach. Dicitrinol (3) was isolated by classical chrom...
- A New Tetracyclic Diterpene from Jatropha curcas
[作者：Xu, JJ; Fan, JT; Zeng, GZ; Tan, NH,期刊：Helvetica Chimica Acta, 页码：842-846 , 文章类型： Article，,卷期：2011年94-5]
- Jatrophodione A (1), a new diterpene with four rings, together with nine known compounds, caniojane (2), jatropholone A (3), jatropholone B (4), jatrogrossidione (5), 2-epijatrogrossidione (6), heudelotinone (7), gosswei...
- Novel Cyanoglucosides from the Leaves of Hydrangea macrophylla
[作者：Wang, ZB; Gao, HY; Yang, CJ; Sun, Z; Wu, LJ,期刊：Helvetica Chimica Acta, 页码：847-852 , 文章类型： Article，,卷期：2011年94-5]
- Four non-cyanogenic cyanoglucosides including hydranitrilosides A(1), A(2), B-1, and B-2 (1 - 4, resp.), together with a new phenolic glucoside, 3-hydroxy-4-methoxybenzoic acid 3-O-beta-d-glucopyranoside (5), were isolat...
- Diterpenoid Alkaloids from Delphinium tatsienense
[作者：Chen, FZ; Chen, QH; Liu, XY; Wang, FP,期刊：Helvetica Chimica Acta, 页码：853-858 , 文章类型： Article，,卷期：2011年94-5]
- Three new C-20-diterpenoid alkaloids, along with twenty-two known alkaloids, were isolated from the whole herbs of Delphinium tatsienense. The new alkaloids include a vakognavine-type C-20-diterpenoid alkaloid, designate...
- Convergent Domino Knoevenagel Hetero-Diels-Alder and Domino Oxidation Hetero-Diels-Alder Reactions Encountered in an Unexpected Formation of Novel 5-Aryl-1H-pyrano[2,3-d]pyrimidine-2,4(3H,5H)-diones and 5-Aryl-2,3-dihydro-2-thioxo-1H-pyrano[2,3-d]pyrimidin-4(5H)-ones
[作者：Zidar, N; Kikelj, D,期刊：Helvetica Chimica Acta, 页码：859-867 , 文章类型： Article，,卷期：2011年94-5]
- Convergent domino Knoevenagel hetero-Diels-Alder and domino oxidation hetero-Diels-Alder reactions, in which both diene and dienophile are formed under the same reaction conditions in situ, are described for the first ti...
- Novel Sesquiterpenes from the Mycelial Cultures of Dichomitus squalens
[作者：Xie, HH; Xu, XY; Dan, Y; Wei, XY,期刊：Helvetica Chimica Acta, 页码：868-874 , 文章类型： Article，,卷期：2011年94-5]
- Four novel sesquiterpenes, 5-hydroxydichomitol (1), dichomilludol (2), 3 beta,13-dihydroxyledol (3), and 2 beta,3 beta,13-trihydroxyledol (4), were isolated along with 2 beta,13-dihydroxyledol (5) from the AcOEt-soluble ...
- An Efficient Stereoselective Total Synthesis of Synargentolide A and Its Epimer
[作者：Das, B; Balasubramanyam, P; Veeranjaneyulu, B; Reddy, GC,期刊：Helvetica Chimica Acta, 页码：881-884 , 文章类型： Article，,卷期：2011年94-5]
- The stereoselective total synthesis of a naturally occurring alpha-pyrone (= 2H-pyran-2-one) derivative, synargentolideA(1), and of its epimer 2 (with the originally proposed structure of synargentolideA) was efficiently...
- Molybdenum- and Tungsten-Based Coordination Polymers as Catalysts for an Efficient and Rapid Synthesis of Hexahydro-5-oxoquinoline-3-carboxylates and 1,4-Dihydropyridine-3,5-dicarboxylates
[作者：Das, B; Srilatha, M; Veeranjaneyulu, B; Kanth, BS,期刊：Helvetica Chimica Acta, 页码：885-891 , 文章类型： Article，,卷期：2011年94-5]
- Hexahydro-5-oxoquinoline-3-carboxylates and 1,4-dihydropyridine-3,5-dicarboxylates were synthesized efficiently and rapidly (2 min) in the presence of molybdenum-and tungsten-based coordination polymers [M(Bu3Sn)(2)O-4)]...
- Polyoxygenated Sterols from Freshwater Clam
[作者：Kong, ZL; Yu, SC; Dai, SA; Tu, CC; Pan, MH; Liu, YC,期刊：Helvetica Chimica Acta, 页码：892-896 , 文章类型： Article，,卷期：2011年94-5]
- Two new biologically active polyoxygenated sterols, 3,5,9-trihydroxycholest-7-en-6-one (1) and cholest-7-ene-3,6,9-triol (3), together with one known sterone, topsentisterol D3 (2), were isolated from freshwater clam (Co...
- New Polyketides Isolated from Botryosphaeria australis Strain ZJ12-1A
[作者：Xu, YH; Lu, CH; Zheng, ZH; Shen, YM,期刊：Helvetica Chimica Acta, 页码：897-902 , 文章类型： Article，,卷期：2011年94-5]
- Four new polyketides, botryosphaerones A - D (1 - 4, resp.), were obtained from the fermentation culture of Botryosphaeria australis strain ZJ12-1A, together with four known compounds, O-methylasparvenone (5), 6-ethyl-2,...
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