Author/Authors :
Andrea Cornia، نويسنده , , Fulvia Felluga، نويسنده , , Vincenzo Frenna، نويسنده , , Franco Ghelfi، نويسنده , , Andrew F. Parsons، نويسنده , , Mariella Pattarozzi، نويسنده , , Fabrizio Roncaglia، نويسنده , , Domenico Spinelli، نويسنده ,
Abstract :
The copper-catalyzed radical cyclization (RC) of N-α-perchloroacyl cyclic ketene-N,X(X=O, NR, S)-acetals was studied. While the RC of N-acyl ketene-N,O-acetals was unsuccessful, the 5-endo cyclization of the other ketene acetals provided much better results, with the following order of cyclization efficiency: hexa-atomic cyclic ketene-N,NR-acetals
Keywords :
Cyclic ketene-N , S-acetals , copper(I) chloride , 5-endo Radical cyclization , maleic anhydrides , ?-Perchloroenamides
Journal title :
Tetrahedron
Journal title :
Tetrahedron