Attraction of the German cockroach to cyclohexyl alkanoates and n-alkyl cyclohexaneacetates

Add time:08/04/2019    Source:sciencedirect.com

Attraction of the German cockroach, Blattella germanica, to esters was tested in a heavily infested room. Sticky traps of cardboard baited with hexyl hexanoate and pentanoate captured higher numbers than an empty control. Recluction or extension of the alcohol moiety even by a C1 unit resulted in a decrease of activity. The suggested importance of the C6 moiety which is known to make a ring form with the least effort led to examination of the activity of the corresponding cyclohexanol esters; the result was some tenfold increase in activity. A further tenfold increase in attractiveness was attained by inverting the O and C adjacent to the ester carbonyl function, i.e. by modifying cyclohexyl pentanoate into propyl cyclohexaneacetate.

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