Title of article :
Silica-bonded S-sulfonic acid as a recyclable catalyst for chemoselective synthesis of 1,1-diacetates
Author/Authors :
Niknam، نويسنده , , Khodabakhsh and Saberi، نويسنده , , Dariush and Sefat، نويسنده , , Maryam Nouri، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2009
Abstract :
A simple and efficient procedure for the preparation of silica-bonded S-sulfonic acid (SBSSA) by reaction of 3-mercaptopropylsilica (MPS) and chlorosulfonic acid in chloroform is described. This solid acid is employed as a recyclable catalyst for the synthesis of 1,1-diacetates from aromatic aldehydes and acetic anhydride under mild and solvent-free conditions at room temperature.
Keywords :
Silica-bonded S-sulfonic acid , Aldehydes , solvent-free , 1 , 1-Diacetates
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters