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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36条记录   Reaction of 2-alkynylbenzoyl cyanides with carboxylic acids producing functionalized indenones. [作者：Shimizu, Hiroshi;Murakami, Masahiro;,期刊：SYNLETT, 页码：1817-1820 , 文章类型： 研究论文，,卷期：2008年-12] 2-Alkynylbenzoyl cyanides react with carboxylates via a cyclic allene intermediate to produce 2-acylamino-3-acylindenones in good yield. The high reactivity of the 2-acylamino moiety of the product for a substitution rea... An efficient enantioselective synthesis of the 3C protease inhibitor (-)-thysanone. [作者：Sperry, Jonathan;Brimble, Margaret A.;,期刊：SYNLETT, 页码：1910-1912 , 文章类型： 研究论文，,卷期：2008年-12] The enantioselective synthesis of the 3C protease inhibitor (-)-thysanone (I) is described. The key step is the addn. of the o-toluate anion of II to a,b-unsatd. d-lactone III. Spectroscopic anal. of the synthetic mate... An easy and multigram scale synthesis of anthracene-1,8-ditriflate. [作者：Kissel, Patrick;Weibel, Fabian;Federer, Lukas;Sakamoto, Junji;Schluter, A. Dieter;,期刊：SYNLETT, 页码：1793-1796 , 文章类型： 研究论文，,卷期：2008年-12] 1,8-Ditriflated anthracene was prepd. by an easy and straightforward approach that enables its reproducible synthesis on a 10 g scale. Its sym./unsym. diethynylations by using the Sonogashira cross-coupling reactions we... First cyclocondensations of 1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 1,1-dimethoxy-4,4,4-trifluorobut-1-en-3-one. [作者：Lubbe, Mathias;Bunescu, Alina;Sher, Muhammad;Villinger, Alexander;Langer, Peter;,期刊：SYNLETT, 页码：1862-1864 , 文章类型： 研究论文，,卷期：2008年-12] 75 The formal [3+3] cyclocondensation of 1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 1,1-dimethoxy-4,4,4-trifluorobut-1-en-3-one afforded functionalized 3-methoxy-5-(trifluoromethyl)phenols with very good regioselecti... Ultrasound-assisted synthesis of functionalized 1,3-enynes by palladium-catalyzed cross-coupling reaction of a-styrylbutyltelluride with alkynyltrifluoroborate salts. [作者：Singh, Fateh Veer;Weber, Mineia;Guadagnin, Rafael Carlos;Stefani, Helio A.;,期刊：SYNLETT, 页码：1889-1893 , 文章类型： 研究论文，,卷期：2008年-12] An ultrasound-assisted synthesis of functionalized 1,3-enyne scaffolds was described and illustrated by palladium-catalyzed cross-coupling of potassium alkynyltrifluoroborate salts and a-styrylbutyltellurides. This proc... Practical and convenient Suzuki-Miyaura coupling reaction and a-arylation using diphenylcyclopropylphosphine ligands. [作者：Suzuki, Ken;Sawaki, Tomoya;Hori, Yoji;Kobayashi, Tohru;,期刊：SYNLETT, 页码：1809-1812 , 文章类型： 研究论文，,卷期：2008年-12] A new ligand, diphenylmethylcyclopropylphosphine, was successfully applied in the palladium-catalyzed Suzuki-Miyaura coupling and a-arylation of ketones with aryl chlorides in moderate to high yields. An asym. coupling ... One-pot oxidative conjugate hydrothiocyanation-hydrosulfenylation of Baylis-Hillman alcohols promoted by a protic ionic liquid. [作者：Yadav, Lal Dhar Singh;Patel, Rajesh;Srivastava, Vishnu Prabhakar;,期刊：SYNLETT, 页码：1789-1792 , 文章类型： 研究论文，,卷期：2008年-12] The first example of one-pot oxidative conjugate hydrothiocyanation-hydrosulfenylation of acrylic ester derived Baylis-Hillman alcs., i.e., Me 3-aryl-3-hydroxy-2-methylenepropanoate, was reported. The reaction involved ... Selective cleavage and decarboxylation of b-keto esters derived from (trimethylsilyl)ethanol in the presence of b-keto esters derived from other alcohols. [作者：Knobloch, Eva;Brueckner, Reinhard;,期刊：SYNLETT, 页码：1865-1869 , 文章类型： 研究论文，,卷期：2008年-12] b-Keto[2-(trimethylsilyl)ethyl esters] I (R1 = H, Me; R2 = H, Me) are dealkoxycarbonylated at 50?by 0.75 equiv of Bu4N+F-?H2O in THF. This reaction proceeds chemoselectively in the presence of b-keto(Me esters), b-keto(t... Immobilization of Grubbs catalyst as supported ionic liquid catalyst (Ru-SILC). [作者：Hagiwara, Hisahiro;Okunaka, Naotaro;Hoshi, Takashi;Suzuki, Toshio;,期刊：SYNLETT, 页码：1813-1816 , 文章类型： 研究论文，,卷期：2008年-12] Grubbs olefin metathesis catalyst was immobilized as a ruthenium-supported ionic liq. catalyst (Ru-SILC) in pores of amorphous alumina with the aid of ionic liq. [hmim]PF6. This Ru-SILC was effective for various olefin ... Synthesis of imidazolium-tagged ruthenium carbene complex: remarkable activity and reusability in regard to olefin metathesis in ionic liquids. [作者：Wakamatsu, Hideaki;Saito, Yuri;Masubuchi, Masami;Fujita, Reiko;,期刊：SYNLETT, 页码：1805-1808 , 文章类型： 研究论文，,卷期：2008年-12] The synthesis of a new ionic-liq.-supported Ru carbene complex I (X = BF4, PF6) and its applications to olefin metathesis are reported. These catalysts can be used for ring-closing metathesis in the construction of 5- t... One-step synthesis of [1,2]diazepino[4,5-b]indole derivatives from the reaction of pyranoindolones with methylhydrazine. [作者：Hatzimimikou, Dimitra;Livadiotou, Despina;Tsoleridis, Constantinos A.;Stephanidou-Stephanatou, Julia;,期刊：SYNLETT, 页码：1773-1776 , 文章类型： 研究论文，,卷期：2008年-12] The synthesis of a no. of [1,2]diazepino[4,5-b]indoles in good yields by a one-step sequence from the reaction of pyranoindolones with methylhydrazine is described. The obsd. regioselectivity of the reaction is explaine... One-pot, three-component, highly diastereoselective metal-free synthesis of 2,3,4,5-tetrasubstituted pyrrolidines. [作者：Crovetto, Luis;Rios, Ramon;,期刊：SYNLETT, 页码：1840-1844 , 文章类型： 研究论文，,卷期：2008年-12] An extremely efficient, highly diastereoselective, metal-free synthesis of 2,3,4,5-tetrasubstituted pyrrolidines is described. The 3-component reaction between aldehydes, aminomalonates, and nitro alkenes proceeds with ... Efficient synthesis of dihydrobenzofurans via a multicomponent coupling of salicylaldehydes, amines, and alkynes. [作者：Nguyen, Rene-Viet;Li, Chao-Jun;,期刊：SYNLETT, 页码：1897-1901 , 文章类型： 研究论文，,卷期：2008年-12] A simple and efficient synthesis of dihydrobenzofurans was developed using a multicomponent coupling of various salicylaldehydes, amines, and alkynes. The use of aliph. alkynes contg. a heteroatom is crit. to the succes... Total synthesis of (S)-(-)-curvularin: a ring-closing-metathesis-based construction of the macrocyclic framework. [作者：Mohapatra, Debendra K.;Rahaman, Hasibur;Pal, Rita;Gurjar, Mukund K.;,期刊：SYNLETT, 页码：1801-1804 , 文章类型： 研究论文，,卷期：2008年-12] A convergent, flexible, and efficient approach to the synthesis of curvularin is described. Key step is the high-yielding macrocyclic ring formation by ring-closing metathesis (RCM) using the Grubbs 2nd-generation catal... SimplePhos as efficient ligand for the copper-catalyzed kinetic resolution of cyclic vinyloxiranes with Grignard reagents. [作者：Millet, Renaud;Alexakis, Alexandre;,期刊：SYNLETT, 页码：1797-1800 , 文章类型： 研究论文，,卷期：2008年-12] Cyclic vinyloxiranes react with Grignard reagents under Cu catalysis. Highly efficient kinetic resoln. is achieved with the new SimplePhos family of chiral P ligands. Stereodivergence could be exploited to get either th... Trichlorosilane (HSiCl3), a cheap and convenient reducing agent. [作者：Zhang, Zhiguo;,期刊：SYNLETT, 页码：1915-1916 , 文章类型： 综述，,卷期：2008年-12] A review is given on the utility of HSiCl3 as reducing agent in org. synthesis.