SYNTHESIS AND CHARACTERIZATION OF FORMAMIDINE DERIVATIVES FROM IMIDATE VIA DIFFERENT CATALYSTS

A. Yahyazadeh, M. Hadisi Nea, S. Majnooni

Abstract


In this research, synthesis of (1E)-N'-((Z)-2-amino-1,2-dicyanovinyl)-N-(4-ethoxyphenyl)formamidine from imidate was investigated in the presence of different catalysts such as sulfonic acid (-SO3H), P-Toluene sulfonic acid (PTSA), aluminium chloride (AlCl3), ceric ammonium nitrate (CAN), anilinium chloride (C6H5NH3+Cl-), Montmorillonite (K10), silica sulfuric acid (SiO2-OSO3H), silica-supported perchloric acid (HClO4-SiO2). Silica sulfuric acid exhibited high catalytic activity for this reaction and afforded excellent yields within a lesser time. Other formamidine derivatives were prepared from the reaction of imidate with amines in the presence of silica sulfuric acid under argon at room temperature.


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DOI: http://dx.doi.org/10.17628/ecb.2013.2.855-858

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