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论文类型：期刊论文

发表时间：2010-01-01

发表刊物：JOURNAL OF HETEROCYCLIC CHEMISTRY

收录刊物：SCIE

卷号：47

期号：1

页面范围：15-21

ISSN号：0022-152X

摘要：In recent years, protoporphyrinogen oxidase (Protox) inhibitor herbicides are developed rapidly, because of this type of herbicides shows high herbicidal activity and low toxicity. In this paper, we prepared a series of new substituted pyrazolyl benzoxazole derivative, which were synthesized from 4-fluorophenol, via a serial of reactions included chlorination, acylation, condensation, ring closure, methylation, nitration, and so on. All the structures are confirmed by (1)H NMR, MS and element analysis. Preliminary bioassay shows that most substituted pyrazolyl benzoxazole derivatives exhibit high herbicidal activity to the tested gramineous weeds and latifoliate weeds.