| 摘要 |
<p>The invention relates to a compound having the formula < IMG > wherein X, Y and Z independently represent hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, halogen, aryl, substituted aryl or two adjacent substituents are bonded together in a saturated five, six or seven-membered cyclic structure. The compounds are useful as intermediates in the preparation of 1,2,4-triazolo¢1,5-a! pyrimidine derivatives which are herbicidally active.</p> |
