| 摘要 |
NEW MATERIAL:A compound of formula I {X is O or S; Z is formula II or III [G is H or halogen: A is halogen or NO2; E is H, halogen, CidenticalN, NO2, NH2, OH, SH or OR1 (R1 is 1-5C alkyl, 3-6C cycloalkyl, 2-4C alkenyl, etc.); L is H or halogen; Y is O or S; n is 0 or 1; J is H, halogen, 1-5C alkyl, 3-6C cycloalkyl, etc.]}. EXAMPLE:9-(7-Fluoro-3-3oxo-4-propargyl-2H-1,4-benzoxazin-6-ylimino)-8- thia-l,6- diazobicyclo[4,3,0]4-nonen-7-one. USE:A herbicide. High in selectivity. PREPARATION:A thiosemicarbazone derivative of formula IV is reacted with a compound of formula V. |
