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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14条记录   Chemistry of glycosyl fluorides [作者：Shimizu, M; Togo, H; Yokoyama, M,期刊：Synthesis, 页码：799-822 , 文章类型： Review，,卷期：1998年-6] In recent years glycosyl fluorides have been utilized as versatile sugar donors in the field of organic synthesis including natural product synthesis as well as carbohydrate chemistry. We describe here an update on devel... Palladium-catalyzed carbonylative coupling of iodonium salts with organostannanes under aqueous conditions: Synthesis of unsymmetrical vinyl and aromatic ketones [作者：Kang, SK; Ho, PS; Yoon, SK; Lee, JC; Lee, KJ,期刊：Synthesis, 页码：823-825 , 文章类型： Article，,卷期：1998年-6] The palladium-catalyzed carbonylative coupling reaction of hypervalent iodonium salts with organostannanes was accomplished in the presence of PdCl2 (0.2 mol%) under atmospheric pressure of carbon monoxide at room temper... Bis(trimethyltetrathiafulvalenyl) (TriMTTF-TriMTTF) [作者：John, DE; Moore, AJ; Bryce, MR; Batsanov, AS; Howard, JAK,期刊：Synthesis, 页码：826-828 , 文章类型： Article，,卷期：1998年-6] Bis(trimethyltetrathiafulvalenyl) (TriMTTF-TriMTTF) has been synthesised in 75% yield from iodotrimethyl-TTF; its solution electrochemistry and X-ray, crystal structure are reported. Synthesis of 4-substituted imidazoles via palladium-catalyzed cross-coupling reactions [作者：Jetter, MC; Reitz, AB,期刊：Synthesis, 页码：829-831 , 文章类型： Article，,卷期：1998年-6] Imidazoles bearing vinyl and aryl substitution in the 4-position can be prepared using palladium-catalyzed cross-coupling reactions of 1-tritylimidazol-4-yltin and -zinc reagents in 67-80% yield. Importantly, these coupl... Application of the Reetz reagent, dichlorodimethyltitanium, to develop sterically congested quaternary centers. The synthesis of herbertene [作者：Poon, T; Mundy, BP; Favaloro, FG; Goudreau, CA; Greenberg, A; Sullivan, R,期刊：Synthesis, 页码：832-834 , 文章类型： Article，,卷期：1998年-6] A general protocol for conversion of a tetrasubstituted alkene to a highly methylated hydrocarbon is tested with a concise synthesis of the natural product, herbertene. The conversion: alkene --> 1,2-diol --> 1,2-dimethy... A convenient synthesis of 2-alkyl-2-methyltetrahydrofurans from 4-methylalk-4-en-1-ols catalyzed by iodine [作者：Kim, KM; Jeon, DJ; Ryu, EK,期刊：Synthesis, 页码：835-836 , 文章类型： Article，,卷期：1998年-6] Cyclization of 4-methylalk-4-en-1-ols in the presence of a catalytic amount of iodine in dichloromethane gave exclusively 2-alkyl-2-methyltetrahydrofurans under mild conditions in high yields. Synthesis of Fmoc-beta-homoamino acids by ultrasound-promoted Wolff rearrangement [作者：Muller, A; Vogt, C; Sewald, N,期刊：Synthesis, 页码：837-841 , 文章类型： Article，,卷期：1998年-6] A highly efficient protocol for Arndt-Eistert chain elongation of the base-labile fluorenylmethoxycarbonyl (Fmoc) protected alpha-amino acids by Ag+-catalyzed, ultrasound-promoted Wolff rearrangement of the corresponding... A novel synthesis of trifluoromethyl enones and enediones [作者：Sanin, AV; Nenajdenko, VG; Smolko, KI; Denisenko, DI; Balenkova, ES,期刊：Synthesis, 页码：842-846 , 文章类型： Article，,卷期：1998年-6] Reactions of trifluoromethyl enamino ketones, (E)-4-(dimethylamino)-1,1,1-trifluorobut-3-en-2-one (2) and 3-(dimethylaminomethylene)-1,1,1,5,5,5-hexafluoropentane-2,4-dione (3), with various types of lithium derivatives ... Palladium-catalyzed boronic acid cross-coupling reactions of beta-ethoxy beta-trifluoromethyl vinyl bromides [作者：Allain, L; Begue, JP; Bonnet-Delpon, D; Bouvet, D,期刊：Synthesis, 页码：847-850 , 文章类型： Article，,卷期：1998年-6] Palladium-catalyzed cross-coupling of CF3-containing bromo vinyl ethers 2-4 with aryl- and alkenylboronic acids has been achieved stereoselectively to afford new tetrasubstituted enol ethers 6-8 in excellent yields. Low-valent titanium induced novel reductive cyclizations of alpha beta-unsaturated nitrile compounds [作者：Zhou, LH; Tu, SJ; Shi, DQ; Dai, GY; Chen, WX,期刊：Synthesis, 页码：851-854 , 文章类型： Article，,卷期：1998年-6] The intermolecular and intramolecular reductive coupling reactions of alpha,beta-unsaturated nitrile derivatives induced by a low-valent titanium reagent prepared from titanium tetrachloride and zinc powder were studied.... Synthesis of 2-phenoxy-2,7(5)-spiro[1,3,2-benzodioxaphosphole-2,2 '-1,3,2-oxazophospholan]-5 '-ones [作者：Fu, H; Tu, GZ; Li, ZL; Zhao, YF,期刊：Synthesis, 页码：855-858 , 文章类型： Article，,卷期：1998年-6] Phosphorus(V) chloride was sequentially displaced by catechol N,O-bis(trimethylsilyl)amino acids and phenol (Method A) or catechol, phenol and N,O-bis(trimethylsilyl)amino acids (Method B) leading to a high yield synthes... The synthesis of oxa-analogues and homologues of naturally occurring polyamines [作者：Lin, PKT; Kuksa, VA; Maguire, NM,期刊：Synthesis, 页码：859-866 , 文章类型： Article，,卷期：1998年-6] A number of polyamine era-analogues 14a-d, 19 have been synthesised. Spermidine era-analogues and homologues 14 were made from N-(aminooxypropyl)phthalimide 8a which was obtained either from the Fmoc-deprotection of N-[3... Chemoselective arylsulfenylation of 2-aminoimidazo[1,2-a]pyridines by phenyliodine(III) bis(trifluoroacetate) (PIFA) [作者：Hamdouchi, C; Sanchez, C; Ezquerra, J,期刊：Synthesis, 页码：867-872 , 文章类型： Article，,卷期：1998年-6] A series of 2-(trifluoroacetamido)imidazo[1,2-a]pyridines was prepared and treated with phenyliodine(III) bis(trifluoroacetate) (PIFA) in the presence of a variety of thiols leading chemoselectively to the corresponding ... Preparation of chiral building blocks for a highly convergent vitamin E synthesis. Systematic investigations on the enantioselectivity of the sharpless bishydroxylation [作者：Tietze, LF; Gorlitzer, J,期刊：Synthesis, 页码：873-878 , 文章类型： Article，,卷期：1998年-6] The enantioselective bishydroxylation of protected 2-methylprop-2-enol 15 and 3-methylbut-3-en-1-ol 16 to give the corresponding diols 18 and 19, respectively, which can be transformed into building blocks for the synthe...