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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7条记录   Use of N-pivaloyl imidazole as protective reagent for sugars [作者：Santoyo-Gonzalez, F; Uriel, C; Calvo-Asin, JA,期刊：Synthesis, 页码：1787-1792 , 文章类型： Article，,卷期：1998年-12] N-Pivaloyl imidazole was prepared and used as a selecttive protective reagent of different monosaccharides (D-glucose, D-mannose, D-galactose, 2-acetamido-2-deoxy-D-glucose and 2-acetamido-2-deoxy-beta-D-glucopyranosyl a... A facile synthesis of 2-substituted isoflavones for immunoassay: Assembly of the isoflavonoid skeleton by means of a novel cyclisation reaction [作者：Pelter, A; Ward, RS; Whalley, JL,期刊：Synthesis, 页码：1793-1802 , 文章类型： Article，,卷期：1998年-12] For the purpose of the development of immunoassays for wide-scale screening, isoflavones suitable for attachment to a hapten were prepared. A new cyclisation reaction allowed the direct conversion of 2-(acyloxy)deoxybenz... Total synthesis of (-)-gamma-lycorane using diastereoselective 5-endo-trig radical cyclization of N-vinylic alpha-halo amides [作者：Ikeda, M; Ohtani, S; Sato, T; Ishibashi, H,期刊：Synthesis, 页码：1803-1806 , 文章类型： Article，,卷期：1998年-12] Bu3SnH-mediated radical cyclization of alpha-iodo-N-(6-oxocyclohex-1-enyl)-N-[(S)-1-phenylethyl]acetamide (6) proceeded in a 5-endo-trig manner with moderate diastereoselectivity to give (3aS,7aR)-octahydroindole-2,7-dio... Carba-Hantzsch synthesis of cyclohexadiene- and biphenylcarboxylic esters [作者：Urbahns, K; Kieck, D; Gohrt, A,期刊：Synthesis, 页码：1807-1811 , 文章类型： Article，,卷期：1998年-12] A variety of novel cyclohexadienes have been synthesized by a cyclizing tandem Michael/Wittig (carba-Hantzsch) reaction. The cyclohexa-1,4-dienes prepared, represent the first examples of isoelectronic analogs to dihydro... C-60-linked carboxylic acid and its derivatives by Diels-Alder cycloaddition of C-60 with a buta-1,3-diene bearing an electron-withdrawing group [作者：Ohno, M; Shirakawa, Y; Eguchi, S,期刊：Synthesis, 页码：1812-1816 , 文章类型： Article，,卷期：1998年-12] Diels-Alder cycloadducts of buta-1,3-dienes having an electron-withdrawing group were utilized for preparation of C-60- linked carboxylic acid families; C-60-fused cyclohex-1-enecarboxylic acid was obtained from the cycl... Multisubstituted urea derivatives of hydrazines by a flexible approach with potential application in combinatorial chemistry [作者：Grehn, L; Ragnarsson, U,期刊：Synthesis, 页码：1817-1821 , 文章类型： Article，,卷期：1998年-12] Using inexpensive, readily available starting materials, a trisubstituted hydrazine was synthesized by our recently developed techniques and converted to the corresponding tosylcarbamoyl derivative (N-tosylsemicarbazide)... Sc(OTf)(3), an efficient catalyst for addition of allyltrimethylsilane to aldehydes; Chemoselective addition to aldehydes in presence of ketones and in situ acylation (3 component coupling) [作者：Aggarwal, VK; Vennall, GP,期刊：Synthesis, 页码：1822-1826 , 文章类型： Article，,卷期：1998年-12] Scandium triflate (2-10 mol%) has been found to be a highly efficient catalyst for the addition of allyltrimethylsilane to both activated aromatic and aliphatic aldehydes. However, deactivated (electron rich) aromatic al...