摘要:
Compositions are described comprising an amount of a toxicant comprising a compound of the formula HNR 1 R 2 , or a salt thereof, wherein R1 and R2 are independently hydrogen, a substituted or unsubstituted C 4 -C 6 -cycloalkyl group or a substituted or unsubstituted C 6 -C 12 -aryl group; wherein the amount of the toxicant is sufficient to control termites. Methods for controlling termites using such compositions are also described.
摘要:
Two derivatives of nootkatone, tetrahydronootkatone and 1, 1 0-dihydronootkatone, are surprisingly effective as repellents of termites and mosquitos. Tetrahydronootkatone and 1,10dihydronootkatone were shown to effectively repel termit s at concentrations as low as 2 µg/ml and 12.5 µg/ml, respectively. Tetrahydronootkatone was shown to repel mosquitos at a concentration of 5%. Tetrahydronootkatone is an effectiv repellent of termites either by itself or as an addition to other substrates, including mulches i ade from wood products or other cellulose-containing material, Tetrahydronootkatone or 1, 0-dihydronootkatone can be used to protect construction wood from attack by Formosan subte anean termites, either alone or used in combination with other compounds known to repel termites. It is also believed that these compounds will prove effective in repelling ants, ticks, and cockroaches. These derivatives . of nootkatone are non-toxic to humans and other mammals and environmentally safe.
摘要:
An inexpensive, stereoselective synthesis for nootkatone, tetrahydronootkatone, and their derivatives is disclosed. The starting materials used in the synthesis are inexpensive. The principal starting material, (-)- β-Pinene, is on the GRAS list (generally recognized as safe).