| 摘要 |
<p>HERBICIDAL s-TRIAZINES. Have formula:- (where R1 is halogen, OH, SH or NH2, hydrocarbyl attached via an O or S-atom or imino group or 2 hydrocarbly radicals attached via an N-atom (hydrocarbly is opt. substd. by Cl, OH, NO2, polymethyleneimino or morpholino); R2 is H, alkyl, alkoxy, alkythio or alkylamino, or dihydrocarbylimino (hydrocarbly being opt. substd. as above); and R3 is alkyl, straight or branched chain, opt. substd. by mono- or di-nuclear aryl or arylene, and is attached via primary or secondary diamino or diamido groups).</p> |
