Nano--Alumina supported SnCl4: A novel nitrosating agent for the chemoselective N-nitrosation of secondary amines under grinding and solvent-free conditions

N-Nitrosamine compounds are present in water, soil and air [1]. Due to the variety applications of these compounds in the various industries as insecticides, pesticides, cosmetics, antioxidants, lubricant additives and N=O agents transmitter [2]. In recent years, the researchers focused on the biological terms of N-nitrosamines. To date, number of variety reagents such as nitrous acid (HNO2), dinitrogentrioxide (N2O3), nitrosonioum salts and alkyl nitrites (RNO2) have been used for the nitrosation reactions. The most common of these reagents is nitrous acid [3]. Nano--Alumina supported SnCl4 as a new reusable and green heterogeneous nanocatalyst was prepared and characterized by FT-IR, XRD, SEM, TEM and TGA. Nano--Alumina supported SnCl4 was used for the synthesis of N-Nitrosamines by condensation of sodium nitrite, secondryamine and wet-SiO2 50% (Figure 1).The reaction is proceeded in a short time, simple work-up, easy purification, high yield, solvent-free condition and above all environmental-friendly and further approaches to green chemistry.