Organic synthesis under solvent-free condition: An environmentally benign procedure — I

Abstract

His main area of research is organosilicon chemistry with particular attention to developing new synthetic procedures and reagents, and studying the reaction mechanisms.

Efficient and Regioselective Ring-Opening of Epoxides with Alcohols and Sodium Azide by using Catalytic Amounts of GaCl3/Polyvinylpyrrolidone

“…[6][7][8] On the other hand, these catalysts or reagents could be used under heterogeneous solvent-free conditions for conducting more environmentally benign reactions. 9 These methods have simple work-up and diminished pollutant materials and also energy consumptions in comparison with conventional work-up of solution-phase reactions.…”

Grindstone Chemistry: An Efficient and Green Synthesis of 2-Amino-4H-benzo[b]pyrans

“…Recently, grindstone chemistry has been shown to be a highly viable green and rapid method for the synthesis of organic compounds without the complicacies associated with the use of different solvents, including water [4]. The proposed technique does not require external heating, leading to energy efficient synthesis and may be regarded as more economical and ecologically favorable procedure in chemistry [5]. Toda and coworkers showed that many of the exothermic organic reactions can be performed in good yield using mortar and pestle only [4].…”

Facile and efficient method for preparation of schiff bases catalyzed by P2O5/SiO2 under free solvent conditions

“…An important area of green chemistry deals with solvent minimization. A solvent-free or solid-state reaction may be carried out by using the reactants alone or incorporating them in clays, zeolites, silica, alumina, or other matrices [18]. In recent years, β-zeolite [19], montmorillonite clays [20], SiO 2 , and Al 2 O 3 were employed as catalysts for this purpose to obtain relatively better results.…”