An Efficient One-Pot Synthesis of 2-(Aryloxyacetyl)cyclohexane-1,3-diones as Herbicidal 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors
作者:Da-Wei Wang、Hong-Yan Lin、Bo He、Feng-Xu Wu、Tao Chen、Qiong Chen、Wen-Chao Yang、Guang-Fu Yang
DOI:10.1021/acs.jafc.6b04110
日期:2016.11.30
4-Hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27, HPPD) is an important target for new bleaching herbicides discovery. As a continuous work to discover novel crop selective HPPD inhibitor, a series of 2-(aryloxyacetyl)cyclohexane-1,3-diones were rationally designed and synthesized by an efficient one-pot procedure using N,N′-carbonyldiimidazole (CDI), triethylamine, and acetone cyanohydrin in CH2Cl2
4-羟基苯基丙酮酸双加氧酶(EC 1.13.11.27,HPPD)是发现新的漂白除草剂的重要目标。为发现新型农作物选择性HPPD抑制剂而进行的持续工作,使用N,N'-羰基二咪唑(CDI),通过高效的一锅法合理设计和合成了一系列2-(芳氧基乙酰基)环己烷-1,3-二酮,三乙胺和丙酮氰醇在CH 2 Cl 2中。总共以良好至优异的产率合成了58种三酮化合物。一些三酮类化合物显示出有效的体外拟南芥HPPD(At HPPD)抑制活性。2-(2-(((1-溴萘-2-基)氧基)乙酰基)-3-羟基环己基-2-烯-1-酮,II-13,在37.5–150 g ai / ha的剂量下表现出高,广谱和芽后除草活性,几乎与甲基磺草酮对某些杂草一样有效。此外,II-13在150 g ai / ha的速率下对玉米和低芥酸菜籽显示出良好的农作物安全性,这表明II-13可能作为除草剂用于控制玉米和低芥酸菜子田中的杂草。II