Abstract
Glycerol is a simple polyol compound widely used as a green solvent, having backbone to all lipids known as triglycerides. In our present study, we used glycerol as an acyl acceptor for transesterification of aliphatic acetate by conventional and using microwave assisted synthesis. It was found that increase in the concentration of substrate and catalysts with reaction time, increases yield of aliphatic alcohols. The reaction was followed by separation of product from glycerol by simple extraction with diethyl ether and studied for their HPLC and GC analysis.
Highlights
The hydrolysis of esters is a basic organic transformation [1]
We report on our study about the glycerolysis of aliphatic acetate, using sodium hydroxide and magnesia as representative soluble and solid base catalysts, using glycerol as a green solvent and as an acyl acceptor (Figure 1)
The synthesis of aliphatic alcohol is usually produced via synthesis of aliphatic chloride by chlorination of toluene that is hydrolyzed under alkali conditions [12]
Summary
The hydrolysis of esters is a basic organic transformation [1]. Traditionally, the reaction is performed in an acidic or basic aqueous solution under mild conditions yielding the corresponding carboxylic acid and alcohol. Reaction rate of the alcoholysis of ethyl acetate varies with the combination of type of alcohol and basic strength of solid base catalyst [6,7]. The first reaction cycle in both methods was run as follows: 1 g of ethyl acetate and 0.1 g of solid catalyst were added to a vial with 10 g of glycerol.
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