Method for producing 3-trifluromethylphenyl-4-cyanobenzyl ketone
    41.
    发明申请
    Method for producing 3-trifluromethylphenyl-4-cyanobenzyl ketone 有权
    3-三氟甲基苯基-4-氰基苄基酮的制备方法

    公开(公告)号:US20050171373A1

    公开(公告)日:2005-08-04

    申请号:US10512487

    申请日:2003-04-25

    CPC分类号: C07C253/30 C07C255/56

    摘要: A process is described for preparing 3-trifluoromethylphenyl 4-cyanobenzyl ketone by reacting a C1-C2-alkyl 3-trifluoromethylbenzoate with 4-tolunitrile in an aprotic polar solvent or an aprotic polar solvent mixture in the presence of at least an equimolar amount of a base which is selected from potassium alkoxides of primary C1-C4-alkanols.

    摘要翻译: 描述了一种制备3-三氟甲基苯基4-氰基苄基酮的方法,该方法是在非质子传递极性溶剂中使C 1 -C 2 - 2-烷基-3-三氟甲基苯甲酸酯与4-甲苯腈反应,或 在至少等摩尔量的碱的存在下,非质子极性溶剂混合物,其选自原代C 1 -C 4 - 烷醇的醇盐。

    2-Aroylcyclohexanediones, their preparation and their use as herbicides
or plant growth-regulating agents

    公开(公告)号:US6040274A

    公开(公告)日:2000-03-21

    申请号:US809100

    申请日:1997-03-18

    摘要: 2- Aroylcyclohexanediones I ##STR1## where X, Y=O or S;Ar=phenyl or heteroaryl in each case having 1-4 substituents: halogen, cyano, nitro, --N.dbd.N--Ph, C.sub.1 -C.sub.4 -alkoxycarbonyl, --N(R.sup.9)--COR.sup.10, --N(R.sup.9)--SO.sub.2 --R.sup.11, --SO.sub.2 --N(R.sup.9)R.sup.10, --S(O).sub.m --R.sup.8 or opt. subst. C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy;two adjacent C atoms of the phenyl or heteroaryl ring can also be bridged by means of a chain --C(R.sup.12).dbd.C(R.sup.13)--C(R.sup.14).dbd.C(R.sup.15)--, --Z.sup.1 --C(R.sup.12).dbd.N--, --Z.sup.1 --N.dbd.C(R.sup.12)--, --Z.sub.1 --C(R.sup.12).dbd.C(R.sup.13)--, --Z.sup.1 --C(R.sup.12).dbd.C(R.sup.13)--C(R.sup.14,R.sup.15)--, --Z.sup.1 --C (R.sup.12,R.sup.13)--C(R.sup.14,R.sup.15)--, --Z.sup.1 --C(R.sup.12,R.sup.13)--C(R.sup.14 R.sup.15)--Z.sup.2 --, --C(R.sup.12,R.sup.13)--Z.sup.1 --C(R.sup.14,R.sup.15)--C(R.sup.16,R.sup.17)--, --Z.sup.1 --N(R.sup.20)--Z.sup.2 --, --Z.sup.1 --Z.sup.2 --N(R.sup.20)--, --Z.sup.1 --C(R.sup.12,R.sup.13)--Z.sup.2 --N(R.sup.20)--, --Z.sup.1 --N(R.sup.20)--Z.sup.2 --N(R.sup.21)--, --N(R.sup.21)--Z.sup.1 --Z.sup.2 --, --N(R.sup.20)--Z.sup.1 --N.dbd.C(R.sup.12)--, --Z.sup.1 --C(R.sup.12,R.sup.13)--C(.dbd.NOR.sup.22)--, --Z.sup.1 --C(R.sup.12,R.sup.13)--C(R.sup.14,R.sup.15)--C(.dbd.NOR.sup.22)-- or Z.sup.1 --Z.sup.2 --Z.sup.1 ;(Z.sup.1, Z.sup.2 =--O--, --S--, --SO--, --SO.sub.2 --, --CO--, --C(R.sup.18,R.sup.19)-- or --N(R.sup.20)--;R.sup.12, R.sup.19 =H, OH, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylamino, di-(C.sub.1 -C.sub.4 -alkyl)amino or phenyl;R.sup.20, R.sup.21 =H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylcarbonyl, phenyl or benzoyl;R.sup.22 =H, C.sub.1 -C.sub.4 -alkyl, allyl or phenyl;Ph=phenyl, which can carry 1-3 substituents: halogen, cyano, nitro, --S(O).sub.n --R.sup.23, C.sub.1 -C.sub.4 -alkoxycarbonyl, --SO.sub.2 --N(R.sup.24)R.sup.25, --N(R.sup.24)--COR.sup.25, --N(R.sup.24)--SO.sub.2 R.sup.26 or opt. subst. C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl or C.sub.1 -C.sub.4 -haloalkoxy;m, n=0-2;R.sup.8, R.sup.23 =opt. subst. C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -haloalkyl;R.sup.9,R.sup.10,R.sup.24,R.sup.25 =H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl or opt. subst. phenyl;R.sup.11, R.sup.26 =opt. subst. C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -haloalkyl)R.sup.1,R.sup.2,R.sup.3,R.sup.4 =hydrogen or C.sub.1 -C.sub.4 -alkyl;R.sup.5 =H, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxycarbonyl;R.sup.6, R.sup.7 =C.sub.1 -C.sub.4 -alkyl, benzyl or together are an opt. subst. ethylene or propylene chain;excluding 2-(4-chloro-2-nitrobenzoyl)-5-dimethoxymethyl-5-methylcyclohexane-1,3-dione,and the salts of I and esters of I with acids.Use: herbicides; growth regulators.