Synthesis and herbicidal activities of a series of di (aminopyrazoly) ketone derivatives

JF Li, YQ Zhu, X Wang, HZ Yang

Index: Li, Jun-Fei; Zhu, You-Quan; Wang, Xin; Yang, Hua-Zheng Journal of Heterocyclic Chemistry, 2007 , vol. 44, # 4 p. 749 - 755

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Citation Number: 12

Abstract

4-Hydoxyphenylpyruvate dioxygenase (4-HPPD) catalyzes the conversion of the 4- hydroxyphenylpyruvate to homogentisate in the biosynthesis pathway of plastoquinone and tocopherol. Inhibition of the production of homogentisate by 4-HPPD inhibitors down- regulates the production of plastoquinone, which is thought to be an acceptor of hydrogen from phytoene. Therefore, the absence of plastoquinone leads to an accumulation of the ...