Synthesis of phenoxyphenyl pyridine and pyrazine carboxamides. Activity against Cydia pomonella (L.) eggs.
Several N-(4-phenoxyphenyl)pyridinecarboxamides and N-(4-phenoxyphenyl)pyrazinecarboxamides were synthesized from commercially available material, and their ovicidal activities against Cydia pomonella (L.) were tested. Some of the tested products showed a moderate activity when <24-h-old eggs were sprayed using a Potter tower. A significant increase in the length of the development period of the eggs was also observed in many cases. A clear correlation between both effects was noticed: the products that produced higher mortality also produced higher increase of the length of the development. These results seem to confirm our hypothesis that these compounds could be defined as a juvenile hormone analogues.
Balcells
M
M
Department de Química and Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida, and Area de Protecció de Conreus, Centre UdL-IRTA de R+D de Lleida, Rovira Roure 177, 25198 Lleida, Spain.
Avilla
J
J
Profitos
J
J
Canela
R
R
D000818:Animals; D007605:Juvenile Hormones / Q000378:metabolism; D009036:Moths / Q000378:metabolism*; D010063:Ovum / Q000378:metabolism*; D011719:Pyrazines / Q000138:chemical synthesis* / Q000494:pharmacology*; D011725:Pyridines / Q000138:chemical synthesis* / Q000494:pharmacology*
D007605:Juvenile Hormones; D011719:Pyrazines; D011725:Pyridines