A General Synthesis of 3,5-Dihalo-2<i>H</i>-1,4-oxazin-2-ones from Cyanohydrins
作者:Lieven Meerpoel、Georges Hoornaert
DOI:10.1055/s-1990-27049
日期:——
In a novel approach starting from O-trimethylsilyl protected or unprotected cyanohydrins and oxalyl chloride or bromide, a series of unknown 6-substituted 3,5-dihalo-2H-1,4-oxazin-2-ones were prepared. The method was shown to be efficient for various types of cyanohydrins; however cyclization was not obtained with cyanohydrins containing bulky substituents, electron-rich aryl or heteroaryl groups. A mechanism is proposed.
The present invention relates to imidazoline derivatives and their use as insecticidal, acaricidal, molluscicidal and nematocidal agents. The invention also extends to insecticidal, acaricidal, molluscicidal and nematicidal compositions comprising such imidazoline derivatives, and to methods of using such derivatives and/or compositions to combat and control insect, acarine, mollusc and nematode pests. In particular the present invention relates to imidazolines with alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, aryl, heteroaryl or heterocyclyl substituents.
Phenoxymethyl imidazoline derivatives and their use as pesticides
申请人:Syngenta Crop Protection LLC
公开号:US08110593B2
公开(公告)日:2012-02-07
The present invention relates to imidazoline derivatives and their use as insecticidal, acaricidal, molluscicidal and nematocidal agents. The invention also extends to insecticidal, acaricidal, molluscicidal and nematicidal compositions comprising such imidazoline derivatives, and to methods of using such derivatives and/or compositions to combat and control insect, acarine, mollusc and nematode pests. In particular the present invention relates to imidazolines with alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, aryl, heteroaryl or heterocyclyl substituents.
NITROSUBSTITUTED ARYLOXYALKYLIMIDAZOLINES FOR USE AS PESTICIDES
申请人:Luethy Christoph
公开号:US20100267795A1
公开(公告)日:2010-10-21
The present invention relates to imidazoline derivatives and their use as insecticidal and acaricidal agents. The invention also extends to insecticidal and acaricidal compositions comprising such imidazoline derivatives, and to methods of using such derivatives and/or compositions to combat and control insect and acarine pests. In particular the present invention relates to phenoxy-imidazoline derivatives wherein the phenoxy moiety is substituted with a nitro group. A method of combating and/or controlling an insect or acarid pest, which comprises applying to said pest, or to the locus of said pest, or to a plant susceptible to attack by said pest, a compound of formula (I): or salt or N-oxide thereof.