申请人:FMC Corporation
公开号:USH0001759H1
公开(公告)日:1998-11-03
It has now been found that certain novel benzyloxyphenyl-substituted heterocycles are useful as pre-emergent and post-emergent herbicides. These compounds are represented by formula I: ##STR1## where Q is 1-substituted-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedion-3 -yl, 4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-on-1-yl, 4-halo-5-difluoromethoxy-1-methylpyrazol-3-yl, a 3,4,5,6-tetrahydrophthalimid-1-yl, 8-thia-1,6-diazabicyclo\x9b4.3.0!-nonane-7-on-9-iminoyl, 4-methyl-1,2,4-triazine-3,5-dion-2-yl, 3-chloro-4,5,6,7-tetrahydroindazol-2-yl, 1,4-dihydro-4-(3-fluoropropyl)-5H-tetrazole-5-on-1-yl or a 5,6,7,8-tetrahydro-1,2,4-triazolo-\x9b4,3-a!pyridin-3(2H)-on-2-yl moiety; Z is oxygen, sulfur or CH.sub.2 ; n is 0 or 1, and W, X, Y, R, and R.sup.1 are as described in the specification. Preferred are those compounds where W is oxygen; X is hydrogen or fluoro; Y is methyl or ethyl; n is 1; Z is oxygen; R is methyl; and R.sup.1 is hydroxyalkyl or CH.sub.2 OCONHCH.sub.3.
现在已经发现,某些新型苯氧基苯基取代杂环化合物可作为除草剂的预发和后发除草剂。这些化合物由式I表示:##STR1##其中Q为1-取代-6-三氟甲基-2,4(1H,3H)-嘧啶二酮-3-基,4-二氟甲基-4,5-二氢-3-甲基-1,2,4-三唑-5(1H)-酮-1-基,4-卤代-5-二氟甲氧基-1-甲基吡唑-3-基,3,4,5,6-四氢酞酰亚胺-1-基,8-硫代-1,6-二氮杂双环[4.3.0]壬烷-7-酮-9-亚胺基-1-基,4-甲基-1,2,4-三嗪-3,5-二酮-2-基,3-氯-4,5,6,7-四氢吲哚-2-基,1,4-二氢-4-(3-氟丙基)-5H-四唑-5-酮-1-基或5,6,7,8-四氢-1,2,4-三唑并[4,3-a]吡啶-3(2H)-酮-2-基;Z为氧、硫或CH.sub.2;n为0或1,W、X、Y、R和R.sup.1如规范所述。首选的是W为氧;X为氢或氟;Y为甲基或乙基;n为1;Z为氧;R为甲基;R.sup.1为羟基烷基或CH.sub.2 OCONHCH.sub.3的化合物。