• Title of article

    Synthesis and Ag+-catalyzed cyclization of 2,3-dienamides

  • Author/Authors

    Nedolya، نويسنده , , Nina A and Schlyakhtina، نويسنده , , Nataly I and Zinovʹeva، نويسنده , , Valentina P and Albanov، نويسنده , , Alexander I and Brandsma، نويسنده , , Lambert، نويسنده ,

  • Issue Information
    هفته نامه با شماره پیاپی سال 2002
  • Pages
    3
  • From page
    1569
  • To page
    1571
  • Abstract
    Reaction of 1-lithiated methoxyallene and lithiated 3-methyl-1,2-butadiene with isocyanates, RNCO (R=alkyl) followed by hydrolysis affords the dienamides H2CCC(OCH3)C(O)NHR and (CH3)2CCCHC(O)NHR, respectively, in good to excellent yields. Cyclization to 2-(5H)-furanylidenamines or mixtures of these compounds with 1,5-dihydro-2H-pyrrol-2-ones can be achieved with silver acetate or silver nitrate in acetone.
  • Keywords
    Allenes , 2-(5H)-furanylideneamines , 2 , 5-dihydro-2H-pyrrol-2-ones , lithiation , Isocyanates
  • Journal title
    Tetrahedron Letters
  • Serial Year
    2002
  • Journal title
    Tetrahedron Letters
  • Record number

    1650149