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发明授权
US4708732A 2-(pyrimidinecarbonyl)-1,3-cyclohexanediones and their use as herbicidal agents 失效
2-（嘧啶羰基）-1,3-环己二酮及其作为除草剂的用途

2-(pyrimidinecarbonyl)-1,3-cyclohexanediones and their use as herbicidal agents
摘要：
Herbicidal compounds having the formula ##STR1## wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl, with the proviso that R.sup.1 and R.sup.3 are not both phenyl or substituted phenyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.3 and R.sup.4 together are oxo;R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; andR.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) --NR.sup.c R.sup.d wherein R.sup.c and R.sup.d independently are hydrogen or C.sub.1 -C.sub.4 alkyl; (11) R.sup.e C(O)-- wherein R.sup.e is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; or (12) --SO.sub.2 NR.sup.c R.sup.d wherein R.sup.c and R.sup.d are as defined; and (13) --N(R.sup.c)C(O)R.sup.d wherein R.sup.c and R.sup.d are as defined; and their salts.
摘要（中）：

具有式“IMAGE”的除草化合物，其中R 1是氢，C 1 -C 4烷基，苯基或取代的苯基; R2是氢或C1-C4烷基; 或者R 1和R 2一起是C 2 -C 5亚烷基; R 3是氢，C 1 -C 4烷基，苯基或取代的苯基，条件是R 1和R 3不是苯基或取代的苯基; R4是氢或C1-C4烷基; 或R3和R4一起是氧代; R5是氢或C1-C4烷基; R6是氢或C1-C4烷基; 和R7和R8独立地是（1）氢; （2）卤素; （3）C 1 -C 4烷基; （4）C1-C4烷氧基; （5）三氟甲氧基; （6）氰基; （7）硝基; （8）C 1 -C 4卤代烷基; （9）RbSO n-，其中n是整数0,1或2; 并且R b是（a）C 1 -C 4烷基; （b）被卤素或氰基取代的C 1 -C 4烷基; （c）苯基; 或（d）苄基; （10）-NRcRd其中Rc和Rd独立地是氢或C1-C4烷基; （11）ReC（O） - 其中Re为C1-C4烷基或C1-C4烷氧基; 或（12）-SO 2 NR c R d其中R c和R d如所定义; 和（13）-N（R c）C（O）R d，其中R c和R d如所定义; 和它们的盐。

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