90717-03-6Relevant articles and documents
Preparation method of quinmerac compound
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Paragraph 0058-0063-0066, (2021/06/23)
The invention relates to the field of herbicides, and discloses a preparation method of a quinmerac compound. The method comprises the following steps: 1) carrying out cyclization reaction on a compound with a structure as shown in a formula (1) and methacrolein to obtain a compound with a structure as shown in a formula (2); 2) performing hydrolysis reaction on the compound with the structure as shown in the formula (2) to obtain a compound with a structure as shown in a formula (3), wherein X is halogen. The method provided by the invention has the advantages of simple steps, convenience in operation, short reaction time, low amount of three wastes and the like.
PROCESS FOR THE PREPARATION OF QUINMERAC
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Page/Page column 8, (2020/01/24)
It is an object of the present invention to provide a novel and advantageous process for commercially preparing quinmerac.
Herbicidal mixtures having a synergistic effect
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, (2008/06/13)
PCT No. PCT/EP96/03996 Sec. 371 Date Feb. 17, 1998 Sec. 102(e) Date Feb. 17, 1998 PCT Filed Sep. 12, 1996 PCT Pub. No. WO97/10714 PCT Pub. Date Mar. 27, 1997A composition comprising at least one sulfonylurea of the formula I wherein R1 is substituted alkyl; halogen; a group ER6 (E=O, S or NR7); COOR8; NO2; S(O)oR9; SO2NR10R11; or CONR10R11; R2 is hydrogen, alkyl, alkenyl, alkynyl, halogen, alkoxy, haloalkoxy, haloalkyl, alkylsulfonyl, nitro, cyano or alkylthio; R3 is F, CF3, CF2Cl, CF2H, OCF3, OCF2Cl, or, if R1 is CO2CH3 and R2 is simultaneously fluorine, R3 is Cl, or, if R1 is CH2CF3 or CF2CF3, R3 is methyl, or, if R4 is OCF3 or OCF2Cl, R3 is OCF2H or OCF2Br; R4 is alkoxy, alkyl, alkylthio, alkylamino, dialkylamino, halogen, haloalkyl or haloalkoxy; and R5 is hydrogen, alkoxy or alkyl; or an enviromentally compatible salt of I, and an aryloxyalkanoic acid selected from the group consisting of 2,4-D, 2,4-DB, clomeprop, dichlorprop, dichlorprop-P, dichlorprop-P (2,4-DP-P), fenoprop (2,4,5-TP), fluoroxypyr, MCPA, MCPB, mecoprop, mecoprop-P, napropamide, napropanilide, triclopyr, and an enviromentally compatible salt thereof exhibits a synergistic herbicidal effect.