Silica Sulfuric Acid (SSA) as a Highly Efficient Heterogeneous Catalyst for Persilylation of Purine and Pyrimidine Nucleobases and Other N-Heterocycles Using Hmds

…, A Khalafi-Nezhad, M Divar, S Behrouz

Index: Rad, Mohammad Navid Soltani; Khalafi-Nezhad, Ali; Divar, Masoumeh; Behrouz, Somayeh Phosphorus, Sulfur and Silicon and the Related Elements, 2010 , vol. 185, # 9 p. 1943 - 1954

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Citation Number: 6

Abstract

Purine and pyrimidine nucleobases and other N-heterocycles have been silylated with HMDS in excellent yields in the presence of a catalytic amount of silica sulfuric acid (SSA) as a heterogeneous catalyst. SSA utilizes a shorter reaction time and higher yields of silylated nucleobases. SSA is reusable for several times without a decrease in reactivity or yield of silylated adducts.