- Synthesis of glycoporphyrins by cross-metathesis reactions.
[作者:de C. da Silva, Fernando;Ferreira, Vitor F.;de Souza, Maria C. B. V.;Tome, Augusto C.;Neves, Maria G. P. M. S.;Silva, Artur M. S.;Cavaleiro, Jose A. S.;,期刊:SYNLETT, 页码:1205-1207 , 文章类型: 研究论文,,卷期:2008年-8]
- An easy synthetic approach to glycoporphyrins from Zn(II)-2-vinyl-5,10,15,20-tetraphenylporphyrin or Zn(II)-protoporphyrin-IX di-Me ester and O-allyl carbohydrate acetonides by cross-metathesis is reported.
- A convergent total synthesis of (+)-febrifugine.
[作者:Sieng, Bora;Ventura, Oscar Lozano;Bellosta, Veronique;Cossy, Janine;,期刊:SYNLETT, 页码:1216-1218 , 文章类型: 研究论文,,卷期:2008年-8]
- Febrifugine was synthesized in ten steps from N-Boc-4-aminobutan-1-ol by a convergent approach utilizing an enantioselective allyltitanation and Wittig reaction.
- Intramolecular cycloaddition in cyclohexa-2,4-dienone and photochemical reactions: an efficient route to azatriquinane and azasterpurane frameworks.
[作者:Singh, Vishwakarma;Sahu, Bharat C.;Mobin, Shaikh M.;,期刊:SYNLETT, 页码:1222-1224 , 文章类型: 研究论文,,卷期:2008年-8]
- A novel, efficient, and stereoselective entry to azatriquinane and azasterpurane frameworks from a simple arom. precursor is described. The methodol. involves in-situ generation of cyclohexa-2,4-dienones contg. a tether ...
- The first total syntheses of the sesquiterpenes (?-1,10:7,10-bisepoxy-1,10-seco-calamanene and (?-6,7;7,10-bisepoxy-6,7-seco-calamanene.
[作者:Srikrishna, A.;Ravi, G.;Krishnan, Hema S.;,期刊:SYNLETT, 页码:1199-1201 , 文章类型: 研究论文,,卷期:2008年-8]
- First total syntheses of the title tricyclic sesquiterpenes I and II, resp., which contain a benzo-fused 2,8-dioxabicyclo[3.2.1]octane framework, were achieved via intramol. acetalization reactions, and thus confirming t...
- A novel and green method for the synthesis of indeno[2,1-c]pyridine derivatives in ionic liquid catalyzed by malononitrile.
[作者:Wang, Xiang-Shan;Wu, Jian-Rong;Li, Qing;Yao, Chang-Sheng;Tu, Shu-Jiang;,期刊:SYNLETT, 页码:1185-1188 , 文章类型: 研究论文,,卷期:2008年-8]
- 1-Aryl-9H-indeno[2,1-c]pyridine-4-carbonitrile derivs., e.g., I, were unexpectedly obtained from the reaction of 2-(2,3-dihydroinden-3-ylidene)malononitrile (II), aldehydes (such as 4-tolualdehyde), and malononitrile in ...
- Efficient synthesis of highly substituted indolizinones via iodocyclization and 1,2-shift.
[作者:Choi, Jihyun;Lee, Ge Hyeong;Kim, Ikyon;,期刊:SYNLETT, 页码:1243-1249 , 文章类型: 研究论文,,卷期:2008年-8]
- The 5-endo-dig iodocyclization of propargylic alcs. followed by a 1,2-shift provided rapid access to 2-iodoindolizinones, while the 5-endo-trig iodocyclization of allylic alcs. and subsequent dehydroiodination and 1,2-sh...
- Palladium-catalyzed amino-Heck reaction of g,d-unsaturated ketone O-diethylphosphinyloximes: a new synthesis of substituted pyrroles and indoles.
[作者:Zhu, Jia-Liang;Chan, Yu-Hui;,期刊:SYNLETT, 页码:1250-1254 , 文章类型: 研究论文,,卷期:2008年-8]
- g,d-Unsatd. ketone O-diethylphosphinyloximes I (R = Ph, 2-naphthyl, 4-MeOC6H4, pyridin-4-yl, etc.), readily prepd. from the corresponding ketones, were used as starting materials for the intramol. amino-Heck reactions. ...
- Synthesis of bistramide A and analogues, part 1: stereoselective access to normethyl tetrahydropyran subunit.
[作者:Hiebel, Marie-Aude;Pelotier, Beatrice;Lhoste, Paul;Piva, Olivier;,期刊:SYNLETT, 页码:1202-1204 , 文章类型: 研究论文,,卷期:2008年-8]
- A stereoselective synthesis of the normethyl C(1)-C(13) fragment of bistramide A is described. The key steps involve asym. Sharpless epoxidn., cross-metathesis reaction, and intramol. oxa-Michael reaction. The trans-2,...
- Synthesis of isoprenyl flavonoids: (+)-denticulaflavonol, macarangin, and isomacarangin.
[作者:Basabe, Pilar;de Roman, Monica;Diez, David;Marcos, Isidro S.;Bodero, Olga;Blanco, Araceli;Mollinedo, Faustino;Urones, Julio G.;,期刊:SYNLETT, 页码:1149-1152 , 文章类型: 研究论文,,卷期:2008年-8]
- (Biomolecules and Their Synthetic Analogs) Section A straightforward synthesis of two natural C-alkylflavonoids: macarangin (I), isomacarangin (II), and the enantiomer of the natural (-)-denticulaflavonol, III, has been ...
- Linearly fused dicyclobutabenzenes via dual, regioselective cycloadditions of 1,4-benzdiyne equivalent and ketene silyl acetals.
[作者:Arisawa, Tetsu;Hamura, Toshiyuki;Uekusa, Hidehiro;Matsumoto, Takashi;Suzuki, Keisuke;,期刊:SYNLETT, 页码:1179-1184 , 文章类型: 研究论文,,卷期:2008年-8]
- , 75 An efficient, flexible route to highly functionalized linearly fused dicyclobutabenzenes is described based on the dual, regioselective cycloaddn. of benzyne and ketene silyl acetals.
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