Acaricide

Details Acaricide Acaricide

1994-12-05

1996-11-26

Robinson, Allen J.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

A01N 4376

Patent

active

055786251

DESCRIPTION:

BRIEF SUMMARY
This application is a 371 of PCT/JP93/00783 filed Jun. 11, 1993.


TECHNICAL FIELD

This invention relates to an agent for control of mites and ticks as an environmental pest, and specifically relates to an acaricide which contains an oxazoline or thiazoline compound as an effective ingredient, and displays an excellent control effect against house dust mites and mites and ticks which parasitize pets or wild animals or birds.


BACKGROUND ART

Oxazoline or thiazoline compounds, which mainly target mites which parasitize crops, are disclosed in Japanese Laid-Open Patent Publication Nos. 85268/1990 and 23287/1991. However, there is no disclosure in the above publications about control effect on mites which live in houses or mites which parasitize large or small animals or birds, etc.
Under the above circumstances, the object of this invention lies in developing a new use of some particular compounds among compounds which conceptionally included in the above official gazettes, and searching compounds capable of displaying an excellent control effect against mites as an environmental pest among the selected compounds.


DISCLOSURE OF INVENTION

The present inventors, for the purpose of fulfilling the above requisites, tested novel compounds invented as an agricultural acaricide on dust mites in houses and mites and ticks which parasitize livestock, and as a result found that these compounds show an extremely excellent acaricidal effect against them.
Namely, this invention is an acaricide, which contains as an effective ingredient an oxazoline or thiazoline compound represented by the following formula ##STR2## wherein, R.sup.1 and R.sup.2 are the same or different, and each denote a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a trifluoromethyl group or a trifluoromethoxy group, trifluoromethyl group, a trifluoromethoxy group, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an alkylthio group having 1 to 20 carbon atoms, a lower alkoxy-lower alkyl group, a lower alkoxy-lower alkoxy group, an alkenyloxy group having 3 or more carbon atoms, a lower alkynyloxy group, a tri(lower alkyl)silyl group, a cycloalkyl group optionally substituted with a lower alkyl group or a group ##STR3## B denotes a direct bond, an oxygen atom, a lower alkylene group, a lower alkyleneoxy group, a lower alkylenedioxy group or a di(lower alkyl)silyl group, each denote a halogen atom, a lower alkyl group, a lower alkoxy group, a lower haloalkyl group, a lower haloalkoxy group or a tri(lower alkyl)silyl group,
In the present description, the term "lower" means that the number of carbon atoms of a group or compound to which this term was attached is 6 or less. The "halogen atom" denotes a fluorine atom, a chlorine atom, a bromine atom or an iodine atom; the "alkyl group" denotes a straight-chain or branched alkyl group having 1 to 20, preferably 1 to 15 carbon atoms; the "alkoxy group" and the "alkylthio group" respectively denote an (alkyl)-O-group and an (alkyl)-S-group whose respective alkyl parts have the above meaning; and the "haloalkyl group" denotes an alkyl group at least one of whose hydrogen atoms bound to the carbon atoms is replaced with a halogen atom, such as, for example, chloromethyl, trifluoromethyl or trifluoroethyl. The "haloalkoxy group" denotes a (haloalkyl)-O-group wherein the haloalkyl part has the above meaning, such as, for example, a trifluoromethoxy group; and the "lower alkoxy-lower alkyl group" is a (lower alkyl)-O-(lower alkyl) group wherein each alkyl part has the above meaning, and includes, for example, ethoxymethyl, n-propoxymethyl, isopropoxymethyl, n-butoxymethyl, isobutoxymethyl, 2-methoxyethyl, 2-ethoxyethyl groups, etc.
The "lower alkoxy-lower alkoxy group" is a (lower alkyl)-O-(lower alkyl)-O-group wherein each alkyl part has the above meaning, and includes, for example, 2-methoxy-ethoxy, 2-ethoxyethoxy, 2-n-propoxyethoxy, 4-isopropoxybutoxy groups, etc. The "alkenyloxy group" is an alkenyl group whose alkenyl part

REFERENCES:
patent: 4977171 (1990-12-01), Suzuki et al.
patent: 5141948 (1992-08-01), Miyamoto et al.

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