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Journal Abstract Search

166 related items for PubMed ID: 20871909

  • 1. Organocatalytic hetero [4+2] cycloaddition reactions of 2-(1-alkynyl)-2-alkene-1-ones: metal-free access to highly substituted 4H-pyrans.
    Yu X, Cao Z, Zhang J.
    Org Biomol Chem; 2010 Nov 21; 8(22):5059-61. PubMed ID: 20871909
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  • 2. Exo/endo selectivity-control in Lewis-acid catalyzed tandem heterocyclization/formal [4+3] cycloaddition: synthesis of polyheterocycles from 2-(1-alkynyl)-2-alken-1-ones and 1,3-diphenylisobenzofuran.
    Gao H, Wu X, Zhang J.
    Chem Commun (Camb); 2010 Dec 14; 46(46):8764-6. PubMed ID: 20967319
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  • 3. Enantioselective synthesis of substituted pyrans via amine-catalyzed Michael addition and subsequent enolization/cyclisation.
    Das U, Huang CH, Lin W.
    Chem Commun (Camb); 2012 Jun 07; 48(45):5590-2. PubMed ID: 22531692
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  • 10. Ruthenium-catalyzed [2 + 2] cycloadditions of bicyclic alkenes with alkynyl phosphonates.
    Cockburn N, Karimi E, Tam W.
    J Org Chem; 2009 Aug 07; 74(15):5762-5. PubMed ID: 19572573
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  • 12. Diastereoselective HOTf-catalyzed three-component one-pot 1,3-dipolar cycloaddition of alpha-diazo ester, nitrosobenzene and electron-deficient alkene.
    Xu ZJ, Zhu D, Zeng X, Wang F, Tan B, Hou Y, Lv Y, Zhong G.
    Chem Commun (Camb); 2010 Apr 14; 46(14):2504-6. PubMed ID: 20309476
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  • 13. Furans versus 4H-pyrans: catalyst-controlled regiodivergent tandem Michael addition-cyclization reaction of 2-(1-alkynyl)-2-alken-1-ones with 1,3-dicarbonyl compounds.
    Xiao Y, Zhang J.
    Chem Commun (Camb); 2009 Jun 28; (24):3594-6. PubMed ID: 19521619
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  • 14. Two novel diastereoselective three-component reactions of alkenes or 3,4-dihydro-(2H)-pyran with urea/thiourea-aldehyde mixtures: [4 + 2] cycloaddition vs Biginelli-type reaction.
    Zhu Y, Huang S, Wan J, Yan L, Pan Y, Wu A.
    Org Lett; 2006 Jun 08; 8(12):2599-602. PubMed ID: 16737323
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  • 15. Catalytic enantioselective three-component hetero-[4+2] cycloaddition/allylboration approach to alpha-hydroxyalkyl pyrans: scope, limitations, and mechanistic proposal.
    Gao X, Hall DG, Deligny M, Favre A, Carreaux F, Carboni B.
    Chemistry; 2006 Apr 03; 12(11):3132-42. PubMed ID: 16440389
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  • 16. Catalytic cascade hydroalkoxylation/isomerization/ [4 + 2] cycloaddition using enyne alcohols as latent dienes or dienophiles.
    Guo R, Li KN, Gong LZ.
    Org Biomol Chem; 2013 Oct 21; 11(39):6707-12. PubMed ID: 24175323
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  • 18. Organocatalytic enantioselective Michael addition of cyclic hemiacetals to nitroolefins: a facile access to chiral substituted 5- and 6-membered cyclic ethers.
    Zhu Y, Qian P, Yang J, Chen S, Hu Y, Wu P, Wang W, Zhang W, Zhang S.
    Org Biomol Chem; 2015 Apr 28; 13(16):4769-75. PubMed ID: 25806618
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