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BACKGROUNDWith the objective of finding novel valuable herbicidal candidates, a series of novel 4‐(1H‐pyrazol‐1‐yl)‐6‐(alkynyloxy)‐pyrimidine derivatives were synthesised and their herbicide activities were evaluated in vivo.
RESULTSThe results showed that many target compounds expressed bleaching activities. Among these, compound 5 h showed the best bleaching activity to gramineous weeds, being...