Document Type : Original Article

Abstract

Environmental pollution and the role of chemical reactions in these pollutions caused the chemists to design chemical methods without pollution. In this regard, “Green Chemistry” defines the classification and principals in order to this aim. Green Chemistry that has been suggested by Paul Anastas, means invention, design, production and usage of synthesis productions and procedures in order to reduce or eliminate the use or product of toxic substances. Also Green Chemistry is caused to prevent or reduce the resource pollutions and has an important role in achieve the sustainable development of human society. Some principals of Green Chemistry are the use of renewable resources, reducing the number of process steps, increasing energy efficiency, design the materials and chemical products, increase the efficiency of chemical processes, and the use of raw materials with low-risk. Nowadays, the chemical-based technologies as a new and efficient approach have been attached. This paper tried to investigate and study of important growing methods of green solvents.

Keywords

1-       Chemat F.; Fabiano-Tixier A.S.; vian M.A.; Allaf, T. and vorobiev, E., 2015. Solvent-free extraction of food and natural products, Trends in Analytical Chemistry, Vol 71 PP: 157-168.
2-       Cravotto, G.; Gaudino Emanuela, C.; Boffa, L., Lévêque, J.M.; Estager, J. and Bonrath, W., 2008.Preparation of second generation ionic liquids by efficient solvent-free alkylation of N-heterocycles with chloroalkanes. Molecules. Molecules. Vol.13, PP: 149–156.
3-       Deetlefs, M. and Seddon, K.R., 2003. Improved preparations of ionic liquids using microwave irradiation. Green Chemistry. Vol. 5, pp: 181–186.
4-       Deetlefs, M. and Seddon, K.R., 2003. Improved preparations of ionic liquids using microwave irradiation. Green Chemistry, Vol. 5, PP: 181–186.
5-       Khadilkar, B.M. and Rebeiro, G.L., 2002 Microwave-assisted synthesis of roomtemperature ionic liquid precursor in closed vessel. Organic Process Research & Development, Vol. 6, PP: 826–828.
6-       Oxley, J.D., Prozorov, T. and Suslick, K.S., 2003. Sonochemistry and sonoluminescence of room-temperature ionic liquids. Journal of the American Chemical Society. Vol. 125, PP: 11138–11139.
7-       Varma, R.S. and Namboodiri, V.V., 2001. Solvent-free preparation of ionic liquids using a household microwave oven. Pure and Applied Chemistry, Vol. 73, PP: 1309–1331.
8-       VO Thanh, G.; Pegot, B. and Loupy, A., 2004. Solvent-free microwave-assisted preparation of chiral ionic liquids from -N-methyl ephedrine. European Journal of Organic Chemistry, PP: 1112–1116.
9-       www.organic-chemistry.org/topics/green-chemistry.shtm
10-   Zhao, H.; Xia, S. and Ma, P., 2005. Use of ionic liquids as ‘green’ solvents for extractions. Journal of Chemical Technology and Biotechnology. Vol. 80, pp: 1089-1096.