| 摘要 |
New N-arylcarbamic acid esters of the formula <IMAGE> (I) in which R is lower aliphatic hydrocarbyl, optionally substituted, R1, R2 and R3, which may be identical or different, are each hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl or halogen, R4 is alkyl, alkenyl, alkynyl, cycloalkenyl, haloalkyl, haloalkenyl, haloalkynyl, alkoxyalkyl or alkylthioalkyl, acylalkyl (i.e., alkanoyloxyalkyl), alkoxycarbonylalkyl, carbalkoxyalkyl, carbalkoxyalkenyl, or an optionally substituted cycloalkyl, aryl, aralkyl, aryloxyalkyl or arylthioalkyl radical, or the grouping <IMAGE> wherein R4' is hydrogen or is defined as R4 is defined above, and Y and Y' are oxygen or sulfur.
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