چكيده فارسي :
There were few studies about the preparation of silica supported acidic ionic liquid catalyst and its application for organic transformation. Recently, we focused on developing novel PTC systems for organic transformations and also successfully performed the One-Pot synthesis of phthalazinedione and phthalazinetrione heterocyclic compounds with [SBAIm]HSO4 composite on SBA-15 mesoporous silica as support [1]. For [SBAIm]HSO4, the surface of the mesoporous silica was modified by reaction with the ionic liquid 1-(triethoxysilylpropyl)-3-methylimidazolium hydrogen sulfate (IL-HSO4). Even though some anticancer natural products, drug candidates, synthetic intermediates, antiasthmatic drugs, biocidal compounds and insecticides possess thiocyanate or azide functional groups, there are few reported practical synthetic routes in the literature for this class of compounds [2]. By having this goal in minds and in continuation of our research on using water as a reaction medium [3], in this research, we report the synthetic applicability of porous acidic catalyst functioned with an imidazole ionic liquid ([SBA-Im]HSO4) as a phase transfer catalyst for the facile preparation of benzyl thiocyanates and azides in water by nucleophilic substitution reaction (Figure 1).
