| abstract |
A insect and mite repellent composition in which the active ingredient is an acylated alpha -amine acid ester derivative of the formula <IMAGE> in which R1 stands for hydrogen or for an optionally substituted alkyl, alkenyl or alkinyl radical, R2 and R5 are identical or different and stand for optically substituted alkyl, alkenyl or alkinyl radicals and R3 and R4 stand for hydrogen or optionally substituted alkyl, aralkyl or aryl, or together with the atom to which they are bonded form an optionally substituted, monocyclic ring. |