| 摘要 |
<p>Novel benzothiazoles of the formula I <IMAGE> in which R is a hydrogen atom, a hydroxyl group or a methyl group, and R<1> is a methyl group, an ethyl group, a chlorine atom, a fluorine atom or a methyl group in the 5-position, are obtained by cyclising a compound of the formula III <IMAGE> or the isomer thereof of the formula IV <IMAGE> in which R<2> in the formulae III and IV is a methyl group, a methoxy group or a hydrogen atom, where the compounds of the formulae III and IV can optionally be prepared in situ during the cyclisation by acylation of compounds of the formula II <IMAGE> with introduction of an acyl group of the formula -CO-R<2>. The novel substances are fungicides.</p> |
