Haloacyl and thiohaloacyl aryl-substituted oxazolidines and thiazolidines useful as active antidotes against crop injury when used with various herbicides; herbicidal compositions and utility of various herbicides and aryl substituted oxazolidines and thiazolidines having the formula ##STR1## wherein X and Y are independently oxygen or sulfur; R is haloalkyl or chloroalkenyl; R.sub.1 is hydrogen, lower alkyl, phenyl, naphthyl, substituted phenyl wherein said substituents are monofluoro, mono- or di- chloro, nitro, methyl, methoxy, or hydroxyl; R.sub.2 is hydrogen or lower alkyl; R.sub.3 is hydrogen, lower alkyl, hydroxymethyl, N-methyl carbamoyloxymethyl or dichloroacetoxymethyl; R.sub.4 is hydrogen or lower alkyl; R.sub.5 is hydrogen, lower alkyl or phenyl; and R.sub.6 is hydrogen; provided that at least one of R.sub.1 or R.sub.5 is phenyl, substituted phenyl or naphthyl.
Haloacyl和thiohaloacyl芳基取代的
噁唑烷和
噻唑烷,与各种
除草剂一起使用时,可用作活性解毒剂,防止作物受损伤。此外,还包括
除草剂组合物以及具有以下式子的芳基取代的
噁唑烷和
噻唑烷的用途:##STR1## 其中,X和Y分别是氧或
硫;R是卤代烷基或
氯代烯基;R.sub.1是氢、低碳基、苯基、
萘基、取代苯基,其中所述取代基是单
氟、单
氯或双
氯、硝基、甲基、甲氧基或羟基;R.sub.2是氢或低碳基;R.sub.3是氢、低碳基、羟甲基、N-甲基
氨基甲氧甲基或二
氯乙酰氧甲基;R.sub.4是氢或低碳基;R.sub.5是氢、低碳基或苯基;R.sub.6是氢;但是,至少R.sub.1或R.sub.5中的一个是苯基、取代苯基或
萘基。