Potentiated insect repellent compositions comprising Deet and certain bicyclic lactones having insect repellent properties are disclosed. The lactones comprise compounds of the formula:
or the corresponding unsaturated compounds thereof having the formula:
wherein R, R' and R" and R'" each are lower alkyl or hydrogen; wherein y is an integer from 1-3, and x and z each are 0 or 1, with the proviso that y is 1 or 2 when x is 1. Preferably, R, R', R" and R'" each are hydrogen or methyl. Such compositions preferably further include a carrier. A method of using such a potentiated composition to repel an insect from a situs comprises applying to such situs an effective amount of the composition, with or without the carrier, and thereby repelling the insect from the situs.
本发明公开了由 Deet 和某些具有
驱虫特性的双环内酯组成的增效驱虫组合物。这些内酯包括式中的化合物:
或其相应的不饱和化合物,其式为
其中R、R'和R "和R'"各自为低级烷基或氢;其中y为1-3的整数,x和z各自为0或1,但x为1时y为1或2。这种组合物最好还包括一种载体。使用这种增效组合物驱赶昆虫的方法包括将有效量的组合物(无论是否含有载体)施用到该部位,从而将昆虫从该部位驱赶出去。