| 摘要 |
<p>N-SUBSTITUTED-TETRAHYDROTHIAZINES, PROCESS FOR THEIR PREPARATION, AND THEIR USE AS PESTICIDES N-substituted 2-(nitromethylene)-tetrahydro-2H-1,3-thiazines of the following formula have pesticidal, especially insecticidal, activity: < IMG > (I) in which R represents an alkyl or allkenyl group of up to 26 carbon atoms; or an alkyl group substituted by one or more halogen atoms, or by an alkoxy, alkoxycarbonyl, alkanoyloxy, oxybicycloalkyl, cycloimido, optionally substituted phenyl or phenoxy, or trialkylsilyl group, or by a quaternary ammonium group of formula: < IMG > in which each group R1 is an alkyl group and Q- is a monovalent anion; and n is 0 or 1.</p> |
