• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Compounds of the general formula in which each of A and B independently represents a halogen atom or an alkyl group; m is 0 or 1; R represents a hydrogen atom or a group -S.CO2R1, -S.SO2R1 or -S.NR2R3, in which R' represents an optionally substituted alkyl or aryl group; R2 represents an optionally substituted alkyl or aryl group; and R3 represents an optionally substituted alkyl or aryl group, or a group of formula -CO2R4, -SO2R4, -COR4, -CO.CO2R4, -CO.NR5R6 or -SO2NR5R6, in which R represents an optionally substituted alkyl or aryl group, and each of R5 and R6 independently represents an optionally substituted alkyl or aryl group; or R' and R3 together or R5 and R6 together represent an optionally substituted alkylene group; in each case, the optional substituents for an alkyl or alkylene group being selected from halogen, alkoxy, alkoxycarbonyl, haloalkoxycarbonyl, alkylcarbonyl, haloalkylcarbonyl, alkylsulphonyl and haloalkylsulphonyl, and the optional substituents for an aryl group being selected from these substituents and also alkyl, haloalkyl, cyano and nitro; X represents a halogen atom or a cyano, nitro, alkyl or haloalkyl group; each of Y and Z independently represents a halogen atom or a cyano, nitro or haloalkyl group; n is 0, 1, 2 or 3; and p is 0, 1 or 2; have useful pesticidal activity.
    公开号:SU1447278A3
    申请号:SU853940050
    申请日:1985-08-19
    公开日:1988-12-23
    发明作者:Андерсон Мартин
    申请人:Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (Фирма)；
    IPC主号:
    专利说明:


    O4
    This invention relates to a process for the preparation of new benzoyl urea derivatives for the general Yurmula.
    And IP CONHCONR
    tX) n
    A - X - n
    R fluorine or chlorine}
    fluorine;
    o, 1, 2, 3;
    hydrogen or a group of the formula
     SNR.2R.,
    where R-2 is C-C-alkyl; EZ-C-C-alkyl,
    or a group of the formula COR4 or COjR, where R C 1 -C, -alkyl; or R and R ii together form a group
    - (CH, j) 3CH (C02CH.,),
    which exhibit insecticidal and acaricidal activity and can be used in agriculture.
    The aim of the invention is to develop a method for the preparation of new benzoyl derivatives: ochenines, which, in comparison with known benzoyl urea products, have a higher acaricidal activity.
    Examples 1-4 show the preparation of intermediate compounds of formula (II), examples 5-9 show the preparation of compounds of formula (I), Example 1. Preparation of 2-fluoro-4-C2-chloro-4- (trifluoromethyl) phenoxy-aniline.
    A solution of 2-fluoro-4-oxyaniline (7.1 g) and potassium hydroxide (3.7 g, 85% purity) in dimethyl sulfoxide (25 ml) is heated to 80 ° C and treated with a solution of 1,2-dichloro -4- (trifluorometyl) benzene (10.9 g) in dimethyl sulfoxide (10 ml). Mix the mixture at 90-85 ° C for 20 h, and after this time it is diluted with a mixture of water and dichloromethane. The organic phase is dried over sodium sulfate and evaporated, and 3.6 g of the crude desired product are obtained in the form of a brown oil.
    Chromatography on silica gel using toluene / petroleum mixture
    0
    five
    0
    g
    4: 1 ratio gives 1.1 g of pure amine as a yellow oil.
    Found,%: C 50.3; H 2.7; N 4.3.
    Calculated,%: C 51.1; H 2,6- N 4,6,
    Example 2 Preparation of N-CCC4-2-chloro-4 (-tri-Q fluoromethyl) -phenoxy} -2-fluorophenyl} - amino thio J-N-methylcarbamic acid propyl ester.
    A solution of propyl ester of M-chlorosulfenyl-K-methylcarbamic acid (12.1 g) in diethyl ether (20 ml) is added to a stirred solution of the compound of example 1 (18.3 g) and triethylamine (7 g) in the same solvent (70 ml) for 20 minutes, the temperature being maintained at cooling 15-20 ° C. Stirring is continued at room temperature for 1 1/2 hours. Then the reaction mixture 5 is diluted with diethyl ether ( 200 ml) is washed with water, dried and the solvent is distilled off. The residue is added to 100 ml of toluene, the toluene is removed under reduced pressure, and 26.5 g of the desired product is left in crude form in the form of a brown oil.
    Example 3, Preparation of NCCC4-C2-chloro-4 - (trifluoromethyl) phenoxy J-2-fluorophenyl amino7thio-M-methyl butane amide.
    A solution of sulfur dichloride (11.3 g) in dichloromethane (10 ml) is added over 20 minutes to a solution of N-methylbutanamide (10.1 g) in the same solvent (35 ml) with stirring.
    five
    0
    the temperature is kept at 10 ° C. Stirring at this temperature is continued for another 30 minutes, after which a solution of pyridine (8.7 g) in dichloromethane (l5 ml) is added. The mixture is then stirred and allowed to warm to room temperature over 2 hours and then filtered. The solvent was distilled off and the residue was extracted with diethyl ether. After filtration, removal and distillation of the solvent, 12.1 g of sulfenyl chloride are obtained in the form of an oil, having a bale, 82-84 ° C at 13 mm Hg, 4.4 g of this oil are dissolved in diethyl phosphate (10 ml). ml), and the resulting solution is added for 20 Mvra
    15
    20
    31447278
    to a mixture of the compound of Example 1 (7.6 g). and triethylamine (2.7 g) in diethyl ether (30 ml). After stirring for 30 minutes at room temperature | 150 ml of diethyl ether was added to the mixture, the resulting solution was washed three times with water, dried, the solvent was distilled off and purified by chromatography on silica gel using dichloromethane n. as eluent. 9.1 g of the expected product are obtained in the form of a brown oil.
    Example 4. Preparation of N-CC methyl ester of CA-C2-chloro-4 - (tri-fluoromethyl) phenoxy} -2-fluorophene1 amino-thio-b-proline.
    A solution of sulfur dichloride (1t, 3 g) in dichloromethane (20 ml) is added at room temperature for 15 minutes to a stirred solution of L-proline methyl ester, hydrochloride (16.6 g) in the same solvent (50 ml), whereupon a solution of pyridine (17.4 g) in the same solvent (20 ml) is added to the reaction mixture over 30 minutes. After stirring overnight, the mixture is diluted with diethyl ether (150 ml), filtered and the solvent is distilled off, leaving 17.8 g of the crude product, 4.3 g of this product is dissolved in diethyl ether (10 ml) and added over 15 minutes at room temperature to stir a mixture of the compound of Example 1 (6.1 g), triethylamine (2.2 g) and dk-ethyl ether (50 ml). After stirring at room temperature for 30 minutes, 250 ml of diethyl ether and petroleum ether are added as eluent to give 6.9 g of the desired crude product as a brown oil.
    Found,%: N 5.7.
    Calculated, N 5.7.
    Example
    C, 51.7; H, 2.1; I: C 51.6; H 2.3;
    6. Preparation of 4- 4-C2-chloro-A- (trifluoromethyl) phenoxy3-2-fluorophenyl} -7-- (2,6-difluorophenyl) g-methyl-3 propyl ester; 7-diox-10 co-3-thia-2,4,6-triazaheptanoic acid.
    A solution of 2,6-difluorobenzosyl isocyanate (2.0 g) in anhydrous methylene chloride (10 ml) is quickly added to a stirred solution of trimer compound 2 (4.5 g) in the same solvent (20 ml) at room temperature. After stirring for 4 hours, the solvent is removed under reduced pressure, and the residue is purified by chromatography (2x) on silica gel, using first methylene chloride and then diethyl ether as eluent. Received so
    25 the product is finally purified by crystallization from diethyl ether / petroleum ether, to obtain colorless crystals (4.5 g), melting at 98-99 C.
    30 Found,%: 49.4; H 3, U N 6.5.
    Calculated,%: C 49.1; H 3.2; N 6,6.
    Example 7. Preparation of H-G435. - 2-chloro-4- (trifluoromethyl) phenoxy} - -2-fluorophenyl Ct (2,6-diphtho-benzoyl) - amine carbonyl amino-thio-N-methyl butane amide.
    A solution of 2,6-difluorobenzoyl isocyanate (20 g) in a 1: 1 mixture of toluene and petroleum ether (5 ml) is added over 30 minutes to a solution of the compound of example 3 in the same solvent (20 ml). After standing at
    40
    Example 6, Preparation of N - (- 2,6- 45 room temperature, precipitated solid-β-difluorobenzoyl) -H-2-fluoro-4-C2-chloride product is filtered off and recrystallized from a mixture of diethyl ether and petroleum ether, is obtained 4 , 3 g of the target product, having a gQ of t. Pl. 136-1.
    Found,%: C 50.6; H 3.2; N 6,6.
    Calculated,%: C 50.4; H 3.2; N 6,8.
    eg et al.p. 8. Preparation of methyl
    Flush with cold N-CCC4-C2-chloro-4- (trifluoromethyl) phenoxy-2-fluorophenyl j (2,6-difluorobenzoyl) amino} carbonyl J-amino-thio-L-proline.
    ro-4- (trifluoromethyl) phenoxy} phenyl 5 urea.
    A solution of the compound of Example 1 (0.9 g) in anhydrous toluene (5 ml) is treated with 2,6-difluorobenzoylisoyl-isocyanate (0.56 g) and the mixture is stirred at room temperature overnight. The precipitated product is then separated.
    methanol and dried in an oven at 60 ° C. Obtain 1.15 g of the desired product having a mp. 173-174 C,
    five
    0
    Found,%: N 5.7.
    Calculated, N 5.7.
    Example
    C, 51.7; H, 2.1; I: C 51.6; H 2.3;
    6. Preparation of 4- 4-C2-chloro-A- (trifluoromethyl) phenoxy3-2-fluorophenyl} -7-- (2,6-difluorophenyl) g-methyl-3 propyl ester; 7-diox-0 co-3-thia-2,4,6-triazaheptanoic acid.
    A solution of 2,6-difluorobenzosyl isocyanate (2.0 g) in anhydrous methylene chloride (10 ml) is quickly added to a stirred solution of trimer compound 2 (4.5 g) in the same solvent (20 ml) at room temperature. After stirring for 4 hours, the solvent is removed under reduced pressure, and the residue is purified by chromatography (2x) on silica gel, using first methylene chloride and then diethyl ether as eluent. Received so
    In five ways, the product is finally purified by crystallization from diethyl ether / petroleum ether, to obtain colorless crystals (4.5 g), melting at 98-99 C.
    0 Found: C 49.4; H 3, U N 6.5.
    Calculated,%: C 49.1; H 3.2; N 6,6.
    Example 7. Preparation of. - 2-chloro-4- (trifluoromethyl) phenoxy} - -2-fluorophenyl Ct (2,6-diphtho-benzoyl) - amine carbonyl amino-thio-N-methylbuthanamide.
    A solution of 2,6-difluorobenzoyl isocyanate (20 g) in a 1: 1 mixture of toluene and petroleum ether (5 ml) is added over 30 minutes to a solution of the compound of example 3 in the same solvent (20 ml). After standing at
    0
    5.14
    A solution of 2,6-difluorobenzoyl isocyanate (2.8 g) in a 1: 1 mixture of toluene and petroleum ether (10 ml) is added at room temperature for 30 minutes to a stirred solution of the compound of example 4 (6.5 g) in the same solvent (20 ml). After stirring at room temperature for 3 hours, the solvent is distilled off, and the residue is purified by chromatography on silica using dichloromethane as eluent, to give 5.5 g of the expected product, m.p. 65-68 ° C.
    Found,%: C 50.2; H 3.3; N 6.3.
    Calculated,%: C 50.0; H 3.1; N 6.5. Examples 9-25. By methods similar to those of Examples 5-8, other compounds of general formula (I) are obtained from intermediate compounds of general formula (II).
    Elemental analysis and their output are shown in Table. one.
    EXAMPLE 9. Preparation of N- (2,6-β-difluorobenzoyl) -Y-C2-fluoro-4-2-chloro-4- (trifluoromethyl) phenoxy-phenylthiourea.
    2-Fluoro-4- 2-chloro-4- (trifluoromethyl) phenoxyaniline in toluene is treated with hydrogen chloride and the resulting hydrochloride (19.45 kg) as a suspension in toluene (50 L) containing dimethylformamide (50 ml) phosgene (7.2 kg) is added, maintaining the temperature below. Then a mixture of 110 ° C for 7 h and another 1.5 h
    heated at
    when, when hydrogen chloride and excess phosgene are sold with nitrogen vapor. After cooling, 2,6-difluorobenzamide (5.34 kg) is added to the mixture and the mixture is heated under reflux for 16 hours. Toluene is removed by distillation in the presence of methanol (70 L) and the desired product is obtained as a solid (13.3 kg), identical to the compound of Example 5.
    Example 10. Insecticidal activity.
    The insecticidal activity of the compound according to the proposed method is determined in the following tests using insects Spodoptera littoralis (s.l.) and Aedes aegypti (A.A). In each case, the tests were carried out under normal conditions (23 ± 2 ° C,



    light and humidity are not created in a special way).
    In each test for coyo /: 1, the calculations calculate (the dose of active substance that is needed to kill half of the test insects) from the mortality data, this value is compared with the corresponding LC50 for the standard insecticide ethyl parathion in the same tests. Results are expressed as a toxicity coefficient.
    Toxicity coefficient
     LC so (parathion)
    LCjo (test compound)
    X 100.
    The results are shown in Table. 2, 4 where A, B, C are known compounds.
    A / -eo nssosh
    F
    No. V -Q-o () -СР,
    S1H CL
    O CONHCONH- -O,
     one
    Р Р
    S014SONSON
    tl
    (A) Spodeprera hittoralis (s.l.). Solutions or suspensions of the compound are prepared in a certain concentration range in a 10% acetone / water mixture containing 0.025% Triton XI00. These solutions are applied using a logarithmic spraying device to Petri dishes containing the nutrient medium on which Spodoptera littoralis larvae are grown. When the sprayed composition is high, 10 larvae infect each cup in the second age stage. Evaluations (deadnesses are carried out 7 days after
    spraying.
    (B) Aedes aegypti (A. a.). Several solutions of the test compound are prepared in various concentrations as in the example
    A. 100 µl of the resulting solution was added to 100 ml of tap water and the acetone was allowed to volatilize. 10 larvae in the early fourth stage are placed in a benzoylurea compound of the general formula
    Afv qv
    rV CONHCONR-O-.0
       Sin
    where A is fluorine or chlorine}
    X is fluorine;
    p o, 1, 2, or 3i
    R is hydrogen or a group of the formula
    lp
    COR (
    (Iii)
    where with RS is NCO, R is NH and with R with is NHR, where R has the indicated values, Ri is NCO.
    Priority on recognition of TM L
     1 o .04.84 with R - N, 08/17/84 at. R-SNRj S
    4A7278
    sixteen
    Table 3
    权利要求:
    Claims (2)
    [1]
    fifteen
    I 6
    Table
    [2]
    2 table 3
    Compound LCj-o /% active Compound- Coefficient Insecticidal withfollowing the example ingredient in solution statement on toxicity activityfor spraying note 5 0.00013 RU - 6 0,00025------. ] θ 7 0.00015 S.I. A.a 8 Not tested 5 5600 1300 fifteen 9 0,00025 6 2800 790 10 0,00030 7 1500 800 eleven 0.00015 8 2700 Not tested 20 12 Not tested 9 5300 960 thirteen 12 9500 380 25 14 0.0038 thirteen 3500 Not tested fifteen 0,00028 14 5500 620 16 0,00021 fifteen 5200 1290 30 17 0,00028 16 6300 810 18 0.00018 17 3000 950 /19 0,000293518 6230 1370 20 0.00015 19 4360 940 21 Not tested 20 1840 1500 to 22 _ _ 21 2800 1100 23 _. 24 3700 Not tested < 24 0.0001045FROM 126 73 25 Not tested A 2500 780 Comparison-d 0.0032 new connection IN 2400 690 50genius 0,00069 FROMG ------- 0.1
    VNIIIPI Order 6756/58 'Circulation 370 Subscription
    Custom polygr. ave, city of Uzhhorod, st. Project, 4
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8409240|1984-04-10|
    GB848420930A|GB8420930D0|1984-08-17|1984-08-17|Pesticidal benzoylurea compounds|
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