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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32条记录   Tandem aza-Michael-condensation-aldol cyclization reaction: approach to the construction of DE synthon of (?-camptothecin. [作者：Chavan, Subhash P.;Dhawane, Abasaheb N.;Kalkote, Uttam R.;,期刊：SYNLETT, 页码：2781-2784 , 文章类型： 研究论文，,卷期：2008年-18] An efficient synthesis of the DE ring of camptothecin, employing a Reformatsky and a tandem 1-pot, 3-step transformation involving aza-Michael reaction, condensation with ClOCCH2CO2Et followed by intramol. aldol reaction... Expeditious syntheses of (?-allo-sedamine and (?-allo-lobeline via a combination of aza-Sakurai-Hosomi and hydroformylation reactions. [作者：Spangenberg, Thomas;Airiau, Etienne;Thuong, Mathieu Bui The;Donnard, Morgan;Billet, Manuella;Mann, Andre;,期刊：SYNLETT, 页码：2859-2863 , 文章类型： 研究论文，,卷期：2008年-18] hydroformylation is reported. An efficient one-pot synthetic method for 2,4-disubstituted 7-arylpyrido[4,3-d]pyrimidines from 2,4-disubstituted 6-(arylethynyl)pyrimidine-5-carbaldehydes and tert-butylamine. [作者：Cikotiene, Inga;Morkunas, Marius;Rudys, Simonas;Buksnaitiene, Rita;Brukstus, Algirdas;,期刊：SYNLETT, 页码：2799-2802 , 文章类型： 研究论文，,卷期：2008年-18] Unexpected thermal cyclization of 2,4-disubstituted 6-(arylethynyl)pyrimidine-5-carbaldehydes with tert-butylamine proceeded to give 2,4-disubstituted 7-arylpyrido[4,3-d]pyrimidines in good yields in the absence of any c... The first synthesis of 2,2':5',2''-terthiazole. [作者：Kurata, Hiroyuki;Takakuwa, Hideki;Matsumoto, Kouzou;Kawase, Takeshi;Oda, Masaji;,期刊：SYNLETT, 页码：2882-2884 , 文章类型： 研究论文，,卷期：2008年-18] prepd. by Cu-mediated oxidative coupling of 2-lithiothiazole. The yield was improved in the presence of equimolar 2,2'-bithiazole. The 5,5''-positions were cleanly lithiated by LiN(CHMe2)2, which demonstrates its poten... Azide-mediated detosylation of N-tosylpyrroloiminoquinones and N-tosylindole-4,7-quinones. [作者：Patel, Swayamprabha P.;Nadkarni, Dwayaja H.;Murugesan, Srinivasan;King, Jason R.;Velu, Sadanandan E.;,期刊：SYNLETT, 页码：2864-2868 , 文章类型： 研究论文，,卷期：2008年-18] The utility of NaN3 as a reagent for the detosylation of N-tosylpyrroloiminoquinones and N-tosylindole-4,7-quinones is described. The NaN3-mediated detosylation is carried out in polar aprotic solvents such as DMF and D... Indium-mediated one-pot synthesis of new 4-allyl-2-amino-4H-chromenes in water. [作者：Shanthi, Gnanamani;Perumal, Paramasivan T.;,期刊：SYNLETT, 页码：2791-2794 , 文章类型： 研究论文，,卷期：2008年-18] A one-pot synthesis of new 4-allyl-2-amino-4H-chromene-3-carbonitriles was achieved in good yields by In-mediated 3-component reaction of salicylaldehydes and malononitrile with different allyl bromides in water. Exploring substrate scope of Shi-type epoxidations. [作者：Nieto, Natalia;Munslow, Ian J.;Fernandez-Perez, Hector;Vidal-Ferran, Anton;,期刊：SYNLETT, 页码：2856-2858 , 文章类型： 研究论文，,卷期：2008年-18] Enantioselective epoxidns. of alkenes were achieved using a Shi-type carbohydrate-derived hydrate and Oxone. The chiral platform provided by the catalyst tolerates a wide range of substituents providing high yields and ... A stereoselective approach for the total synthesis of clonostachydiol. [作者：Yadav, J. S.;Swamy, T.;Reddy, B. V. Subba;,期刊：SYNLETT, 页码：2773-2776 , 文章类型： 研究论文，,卷期：2008年-18] A stereoselective synthesis of clonostachydiol is accomplished using readily available (?-epichlorohydrin as a precursor. The synthesis involves direct and straightforward reactions such as Sharpless asym. epoxidn., iod... Molecular iodine in protection and deprotection chemistry. [作者：Das, Subrato;Borah, Ruli;Devi, Rashmi Rekha;Thakur, Ashim Jyoti;,期刊：SYNLETT, 页码：2741-2762 , 文章类型： 综述，,卷期：2008年-18] A review. The various reactions involving the protection and deprotection of functional groups effected by mol. iodine are described here. Convenient one-pot synthesis of sulfonyl azides from sulfonic acids. [作者：Kim, Joong-Gon;Jang, Doo Ok;,期刊：SYNLETT, 页码：2885-2887 , 文章类型： 研究论文，,卷期：2008年-18] A 1-pot process was developed for prepg. sulfonyl azides by treating sulfonates with Cl3CCN, PPh3, and NaN3 at room temp. A wide range of sulfonyl azides was synthesized in excellent yields under mild conditions. Zwitterionic iodonium compounds: useful tools in organic synthesis. [作者：Malamidou-Xenikaki, Elizabeth;Spyroudis, Spyros;,期刊：SYNLETT, 页码：2725-2740 , 文章类型： 研究论文，,卷期：2008年-18] interesting structures. This account focuses on the synthetic applications of iodonium phenolates, ylides of hydroxycoumarins, and, mainly, ylides of hydroxyquinones. Cross-metathesis of chiral N-tert-butylsulfinyl homoallylamines: application to the enantioselective synthesis of naturally occurring 2,6-cis-disubstituted piperidines. [作者：Gonzalez-Gomez, Jose C.;Foubelo, Francisco;Yus, Miguel;,期刊：SYNLETT, 页码：2777-2780 , 文章类型： 研究论文，,卷期：2008年-18] The synthesis of the piperidine alkaloids (+)-dihydropinidine, (+)-isosolenopsin, (+)-isosolenopsin A, and (2R,6R)-6-methylpipecolate, based on cross-metathesis of chiral N-tert-butylsulfinyl homoallylamines with Me viny... Efficient chemoenzymatic synthesis of phenylacetylrinvanil: an ultrapotent capsaicinoid. [作者：Castillo, Edmundo;Regla, Ignacio;Demare, Patricia;Luviano-Jardon, Axel;Lopez-Munguia, Agustin;,期刊：SYNLETT, 页码：2869-2873 , 文章类型： 研究论文，,卷期：2008年-18] The straightforward synthesis of (phenylacetyl)rinvanyl (PhAR), an ultrapotent capsaicinoid is described. The process starts with the quant. synthesis of Me ricinoleate (MeRic) by castor oil methanolysis. Afterwards, tw... Copper(II) acetate catalyzed cross-coupling of pentafluorophenylboronic acid with amines under an atmosphere of oxygen. [作者：Zhong, Weihui;Liu, Zhenyu;Yu, Chuanming;Su, Weike;,期刊：SYNLETT, 页码：2888-2892 , 文章类型： 研究论文，,卷期：2008年-18] Under an atm. of oxygen and a catalytic amt. of Cu(OAc)2, pentafluorophenylboronic acid reacted with anilines at room temp. to produce the corresponding N-pentafluorophenylanilines in moderate to good yields. In the cas... Alternative I-D exchange reaction on pyrimidine and purine nuclei mediated by tributyltin hydride using THF-d8 as a deuterium source. [作者：Mutsumi, Tomonobu;Maruhashi, Kazuo;Monguchi, Yasunari;Sajiki, Hironao;,期刊：SYNLETT, 页码：2811-2814 , 文章类型： 研究论文，,卷期：2008年-18] A method for the regioselective deuteration of pyrimidine and purine rings mediated by Bu3SnH using THF-d8 as a deuterium source on the basis of a radical reaction was developed. Synthesis of a trihydroxylated aminoazepane from D-glucitol by an intramolecular aziridine ring opening. [作者：Valle, Marcelo Siqueira;Braga, Raquel Marques;,期刊：SYNLETT, 页码：2874-2876 , 文章类型： 研究论文，,卷期：2008年-18] Transformation of D-glucitol into its 1,6-diazido deriv. allowed its conversion into the polyhydroxylated aminoazepane ring in a 1-pot reaction using Ph3P and H2O.