- Synthesis, characterization, and redox property of 3-(2-phenyl-4H-thiochromen-4-ylidene)-3H-chromene-2,4-diones.
[作者:Huang, Chin-Neng;Chuang, Rong-Ren;Kuo, Pei-Yu;Yang, Ding-Yah;,期刊:SYNLETT, 页码:1825-1828 , 文章类型: 研究论文,,卷期:2008年-12]
- Organic Pigments, Fluorescent Brighteners, and Photographic Two (one purple and one blue) 3-(2-phenyl-4H-thiochromen-4-ylidene)-3H-chromene-2,4-dione derivs. were synthesized and evaluated as reversible redox switches. ...
- Novel N,S-phenacyl protecting group and its application for peptide synthesis.
[作者:Tang, Guo;Ji, Tao;Hu, An-Fu;Zhao, Yu-Fen;,期刊:SYNLETT, 页码:1907-1909 , 文章类型: 研究论文,,卷期:2008年-12]
- The phenacyl group can be introduced onto amino and thio groups by N,S-alkylation reactions. Conversely, these groups are removed rapidly by employing magnesium in acetic acid. This protecting group was successfully ap...
- Synthesis of new pyrrolobenzazepines via Pictet-Spengler cyclization.
[作者:Gracia, Stephanie;Schulz, Jurgen;Pellet-Rostaing, Stephane;Lemaire, Marc;,期刊:SYNLETT, 页码:1852-1856 , 文章类型: 研究论文,,卷期:2008年-12]
- A new 6-step divergent strategy was developed allowing access to pyrrolobenzazepine structures from pyrrole. This strategy was based on a regioselective Friedel-Crafts acylation followed by a Pictet-Spengler cyclization...
- Efficient silver-mediated acetalation of b,b'-functionalized chlorins.
[作者:Kopke, Tillmann;Pink, Maren;Zaleski, Jeffrey M.;,期刊:SYNLETT, 页码:1882-1888 , 文章类型: 研究论文,,卷期:2008年-12]
- The authors present a novel synthetic strategy to 2,2-dialkoxy-3-oxochlorins [M = 2H, Ni(II), Cu(II)] (i.e., acetaloxochlorins). Reaction of the corresponding 2,3-dioxochlorin with stoichiometric amts. of Ag triflate (A...
- First enantioselective synthesis of a hydroxyindolizidine alkaloid from the ant Myrmicaria melanogaster.
[作者:Toyooka, Naoki;Zhou, Dejun;Nemoto, Hideo;Tezuka, Yasuhiro;Kadota, Shigetoshi;Jones, Tappey H.;Garraffo, H. Martin;Spande, Thomas F.;Daly, John W.;,期刊:SYNLETT, 页码:1894-1896 , 文章类型: 研究论文,,卷期:2008年-12]
- The first enantioselective synthesis of the recently reported ant alkaloid I has been achieved starting from com. available lactam II in seven steps and 25% overall yield. The proposed structure of the natural product w...
- Transition metals in organic synthesis. Part 87. An efficient palladium-catalyzed route to 2-oxygenated and 2,7-dioxygenated carbazole alkaloids - total synthesis of 2-methoxy-3-methylcarbazole, glycosinine, clausine L, mukonidine, and clausine V.
[作者:Forke, Ronny;Krahl, Micha P.;Daebritz, Frank;Jaeger, Anne;Knoelker, Hans-Joachim;,期刊:SYNLETT, 页码:1870-1876 , 文章类型: 研究论文,,卷期:2008年-12]
- Optimization of the palladium(II)-catalyzed oxidative cyclization of N,N-diarylamines, e.g. I, opens up the way to an efficient synthesis of 2-oxygenated and 2,7-dioxygenated carbazole alkaloids including 2-methoxy-3-met...
- A catalyst-free, convenient construction of eight-membered [1,4]oxazocane-5,8-dione heterocycles from aminoethanols with divinyl succinate.
[作者:Chen, Wan-Qin;Zhang, Qing-Yi;Liu, Bo-Kai;Wu, Qi;Lin, Xian-Fu;,期刊:SYNLETT, 页码:1829-1832 , 文章类型: 研究论文,,卷期:2008年-12]
- A convenient protocol for the synthesis of [1,4]oxazocane-5,8-diones was established by direct cyclization using 2-substituted aminoethanols and divinyl succinate without any catalysts and additives . This strategy is q...
- Elaboration of the oxazepine ring system via CuI/L-proline-catalyzed intramolecular aryl amination.
[作者:Guo, Lei;Li, Ben;Huang, Wenlong;Pei, Gang;Ma, Dawei;,期刊:SYNLETT, 页码:1833-1836 , 文章类型: 研究论文,,卷期:2008年-12]
- A 2-step approach for assembling oxazepines is described, which started from 2-aminophenols and substituted 2-bromobenzyl bromides and used CuI/L-proline-catalyzed coupling reaction as the key step.
- Synthesis, characterization, and photoluminescence of thiophene-containing spiro compounds.
[作者:Kowada, Toshiyuki;Matsuyama, Yoshio;Ohe, Kouichi;,期刊:SYNLETT, 页码:1902-1906 , 文章类型: 研究论文,,卷期:2008年-12]
- (Heterocyclic Compounds (One Hetero Atom)) Section Spiro[fluorene-9,4'-[4H]indeno[3,2-b]thiophene] (spiro-FIT) and bis(spiro-FIT)arenes were synthesized via Stille coupling reaction. UV/vis spectra, emission spectra, and...
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