| 摘要 |
<p>Compounds of formula (I) wherein the substituents are as defined in claim 1, are suitablefor use as herbicides. Also claimed is a process for the preparation of compoundsof the formula I, wherein m is 2 and n is 1, and the other substituents are definedas in claim 1, formula (Ia) by reacting a compound of the formula Ia in a single stepor stepwise in succession with compounds of the formula R5-X and/orR6-X, wherein R5 and R6 are as defined in claim1, and X is a leaving group, and a process for the preparation of compounds of theformula I, wherein R6 is C1 i-C10alkyl orhalogen, m is 2 and n is 1, and the other substituents are defined as in claim 1, formula(Ib) by reacting a compound of the formula 1b with a compound of the formula R5-X,wherein R5 is as defined in claim 1, and X is a leaving group, and a processfor the preparation of compounds of the formula I, wherein R5 is chlorine,bromine or iodine, m is 1 or 2, and n is 1, and the other substituents are definedas in claim 1, formul a (Ic) by reacting a compound of the formula le with an N- halosuccinimideand an oxidising agent.</p> |
