Lipase-catalyzed synthesis of fatty acid amide (erucamide) using fatty acid and urea.
Ammonolysis of fatty acids to the corresponding fatty acid amides is efficiently catalysed by Candida antartica lipase (Novozym 435). In the present paper lipase-catalysed synthesis of erucamide by ammonolysis of erucic acid and urea in organic solvent medium was studied and optimal conditions for fatty amides synthesis were established. In this process erucic acid gave 88.74 % pure erucamide after 48 hour and 250 rpm at 60 degrees C with 1:4 molar ratio of erucic acid and urea, the organic solvent media is 50 ml tert-butyl alcohol (2-methyl-2-propanol). This process for synthesis is economical as we used urea in place of ammonia or other amidation reactant at atmospheric pressure. The amount of catalyst used is 3 %.
Awasthi
Neeraj Praphulla
NP
Department of Oil & Paint Technology, Harcourt Butler Technological Institute, Kanpur, India. neeraj_pa03@rediffmail.com
Singh
R P
RP
D002384:Catalysis / Q000187:drug effects; D002626:Chemistry, Pharmaceutical / Q000191:economics / Q000379:methods; D004800:Enzymes, Immobilized; D004883:Erucic Acids / Q000191:economics / Q000378:metabolism*; D005227:Fatty Acids / Q000494:pharmacology*; D005656:Fungal Proteins; D008049:Lipase / Q000378:metabolism*; D014508:Urea / Q000494:pharmacology*
D004800:Enzymes, Immobilized; D004883:Erucic Acids; D005227:Fatty Acids; D005656:Fungal Proteins; C049508:erucyl amide; D014508:Urea; C093667:Novozyme 435; D008049:Lipase