Substituted N-haloacyl oxazolidines as new compositions of matter useful as active herbicidal antidotes to protect against and decrease crop injury when used with thiolcarbamate herbicides when applied in various methods; improved herbicidal compositions and utility of said compositions to protect against and decrease phytotoxic crop injury when employing thiolcarbamate herbicides, and a two-part herbicide system consisting essentially of a first-part of one or more thiolcarbamate herbicides and a second-part of an effective antidote compound therefor, said antidote compounds of the class 5-substituted 3-acyl oxazolidines having the formula ##STR1## wherein X is oxygen or sulfur and R.sub.1 is alkyl; R is selected from the group consisting of haloalkyl, and alkoxy carboalkyl; R.sub.2 is selected from the group consisting of phenyl, p-chlorophenyl and p-bromophenyl; and R.sub.3 is selected from the group consisting of hydrogen and methyl.
取代的N-卤代酰基
噁唑啉作为新的物质组成,当与
硫代
氨基甲酸酯
除草剂一起使用时,可用作活性
除草剂解毒剂,以保护作物免受损伤,并减少其损伤,且在应用不同方法时具有改进的
除草剂组成和使用效用;当使用
硫代
氨基甲酸酯
除草剂时,用于保护和减少植物毒性作物损伤的
除草剂组成的改进和该组成的效用,以及由第一部分由一种或多种
硫代
氨基甲酸酯
除草剂组成的两部分
除草剂系统和第二部分有效解毒剂化合物组成,该解毒剂化合物属于5-取代的3-酰基
噁唑啉类,具有以下结构式:##STR1## 其中X为氧或
硫,R.sub.1为烷基;R选自卤代烷基和烷氧基羰基烷基;R.sub.2选自苯基,对
氯苯基和对
溴苯基;R.sub.3选自氢和甲基。