کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5271384 1385438 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Silica-bonded N-propyl sulfamic acid as an efficient catalyst for the formylation and acetylation of alcohols and amines under heterogeneous conditions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Silica-bonded N-propyl sulfamic acid as an efficient catalyst for the formylation and acetylation of alcohols and amines under heterogeneous conditions
چکیده انگلیسی

A simple and efficient procedure for the preparation of silica-bonded N-propyl sulfamic acid (SBNPSA) by the reaction of 3-aminopropylsilica (1) and chlorosulfonic acid in chloroform is described. This solid acid is employed as a new catalyst for the formylation of alcohols and amines with ethyl formate under mild and heterogeneous conditions at room temperature with good to excellent yields. Also, SBNPSA catalyzed acetylation of various alcohols and amines with acetic anhydride at room temperature.

Silica-bonded N-propyl sulfamic acid (SBNPSA) was prepared by the reaction of 3-aminopropylsilica and chlorosulfonic acid in chloroform. This solid acid is employed as a catalyst for the formylation of alcohols and amines with ethyl formate at room temperature. Also, SBNPSA catalyzed acetylation of alcohols and amines with acetic anhydride at room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 50, Issue 37, 16 September 2009, Pages 5210-5214
نویسندگان
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