Chemically and enzymatically catalyzed synthesis of C6-C10 alkyl benzoates was written by Krause, Przemyslaw;Hilterhaus, Lutz;Fieg, Georg;Liese, Andreas;Bornscheuer, Uwe. And the article was included in European Journal of Lipid Science and Technology in 2009.Recommanded Product: 5444-75-7 The following contents are mentioned in the article:
The esterification of benzoic acid with n-hexanol, n-octanol, 2-ethylhexanol and n-decanol was investigated in detail. An anal. of the reaction kinetics of esterification in the presence of different com. available chem. catalysts was carried out. The effects of catalyst type and loading on the reaction rate were studied. Although the considered reaction is bimol., it showed a first-order behavior, and a linear dependence with respect to the catalyst concentration was observed Hence, a new approach is presented to describe the reaction kinetics accurately over a wide range. The application of biotechnol. synthesis applying different enzymes as catalysts offers an interesting alternative besides chem. synthesis. Especially an esterase from Bacillus subtilis immobilized on Sepabeads EC-EP showed high stability and was applied for 2 days in the synthesis of hexyl benzoate. Nevertheless, the chem. reaction route remains superior with respect to the catalyst activities under the applied conditions, which were 25 kU/g for the chem. reaction and 0.7 kU/g for the best enzymic conversion. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Recommanded Product: 5444-75-7).
2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 5444-75-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics