Tetrahydropyran Esters as New Attractants for Cockroaches

Abstract

Twenty four tetrahydropyran esters were synthesised and tested as attractants toward Blattella germanica and Supella longipalpa in the laboratory by using the choice-chamber method. In general, carboxylates were superior to propionates and acetates. Among the 2-, 3-, or 4-substituted esters, substitution at the 4-position was better than at the other two positions. These results are explained in terms of the receptor model proposed earlier by others.