| 摘要 |
Novel N-chloroacetylenamines of the formula <IMAGE> in which R is alkyl, alkenyl, alkynyl, alkoxyalkyl, dialkoxyalkyl, alkylthioalkyl or halogenoalkyl and R<1>, R<2>, R<3>, R<4>, R<5> and R<6> independently of one another represent hydrogen, halogen, alkyl, alkenyl, alkynyl, alkoxy, alkanoyloxy, dialkylamino or optionally substituted aryl, and furthermore R<1> and R<3> or R<1> and R<5> and/or R<3> and R<4> or R<4> and R<5> in each case together can represent an optionally substituted alkylene, cycloalkylene, alkenylene, arylene or ether bridge, or an oxygen bridge, a process for the preparation of the novel substances, and their use as herbicides. |
