Title of article :
Metal-free 5-exo-dig cyclization of propargyl urea using TBAF
Author/Authors :
Huguenot، نويسنده , , Florent and Delalande، نويسنده , , Clémence and Vidal، نويسنده , , Michel، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2014
Abstract :
We present the first results of the intramolecular cyclization of propargyl ureas catalyzed by TBAF. Depending on the substituents close to the triple bond, imidazolone or methylene-imidazolidinone was obtained. The dual activation of the triple bond by interaction with TBAF via the cation–π is thought to be responsible.
Keywords :
Propargyl urea , Intermolecular cyclization , TBAF , cation–? interaction , Imidazolinone
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
