• 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:
    There are provided, as novel herbicides, the substituted pyrazolopyrimidines of the formula: <IMAGE> (I) where A represents -CO-NR6- or -C(OR7)=N-, and R1, R2, R3, R4, R6 and R7 are substituent groups as defined in the specification, and the salts and acid addition salts thereof. Processes for their preparation are provided, as also are herbicidal compositions containing them and methods of combating weeds in which they are used.
    公开号:SU784733A3
    申请号:SU772480484
    申请日:1977-05-13
    公开日:1980-11-30
    发明作者:Персивал Альберт；Невилл Йюдсон Филип
    申请人:Физонз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    (54) GORBITSIDE COMPOSITION
    The invention relates to chemical agents for controlling weeds and undesirable vegetation, namely, to a herbicidal composition containing, as an active substance, derivatives of pyrazolopyrmymidine or their mixture with other herbicidal active substances. Herbicidal compositions containing pyrazolopyrmymidine derivatives as active substances are known. These include, for example, a composition based on 1H-pyrazolo derivatives (3,4-d pyrimidinone-4 and its TQ salts. Also known are herbicidal compounds based on benzofuran derivatives, for example, 2-alkoxy-3, 3 dialkyl-5-alkylsulphoxylbenzofuran 2. However, the known herbicidal compositions of this type are not sufficiently effective for certain types of weeds. This herbicidal activity reads about the sludge silt with the c. This goal is achieved by using the pyrazolopmrimidine derivative of formula V -Tf C4 / phenyl, hydrogen, alkyl C trifluoromethyl, alkyl alkyl Ci - C „, benhydride as the active gerbidide composition. , hydrogen, methyl, acetyl, together can mean benzylidene; K together with nitrogen atom can start 1 -pyrrolidino, 1-piperidino 4-morpholino mixture of a compound of general formula T with benzofuran derivatives, viz. -TOXI-2,3-dihydro-3, 3-dimethylbenuran-5-yl-methanesulfonate, form -5- ° -rf) -h ™ ° .Hs. hereinafter referred to as etofumezat. The content of the active substance in the herbicidal composition according to the invention is in the range from 0.5 to 85% by weight. The weight ratio of the compounds I and I in the form of joint use is in the range of 2-3: 1, respectively. The forms of application of the active substance are common: solutions, emulsions, suspensions, pastes, powders, etc. They are prepared by known methods. Compounds of formula 1 are prepared by different methods, for example, by the reaction of 3,5 Diamino-1-methylpyrazole-4-carboxamide with trifluoroacetic acid or by the reaction of 5-amino-4-cyano-3- (2,2. Dialyl propionylamido) -1-alkylpyrazole with sodium hydroxide with a subsequent treatment of the sodium salt formed with concentrated hydrochloric acid. Compounds of general G exist as an equilibrium mixture of two tautomeric forms. The compounds of general formula I, studied as active substances of the herbicidal composition, are presented in Table. 1. Example Post-emergence method. The seeds of the experimental plants were sown in special trays with prepared soil and 14 days after sowing; treated with active ingredients in the form of an aqueous suspension,. Thereafter, the plants were grown under greenhouse conditions for 7 days and the herbicidal effect was visually assessed compared to untreated plants. Rating scale: O - no effect; 100 is full of plant death. For comparison, the known herbicidally active compound pgH g1H O f 1 H.L, CjjHg -lH / gLtg was used. The results of the experiments are presented in table. 2. Compound numbers correspond to the numbers in Table 1. Example 2. Pre-emergence method The active substances according to the invention were mixed with sand and alumina, and the resulting mixture was introduced into a post, which was placed in special trays. After that, the seeds of the experimental plants were sown in the prepared compost and grown under greenhouse conditions for 21 days. Evaluation of herbicidal activity was carried out similarly to example 1, the results of the experiments are presented in table. 3. The known compound A, tested under similar conditions, at a dose of 2.8 kg / ha, turned out to be inactive in the ratio of all the plants studied. Example 3. Post-emergence method. Experimental plants (dicots), grown under greenhouse conditions up to the stage of two true leaves, were treated with active substances in the form of an aqueous suspension and kept them under greenhouse conditions for another 14 days. After that, an evaluation of the garbicidal effect was carried out, as in Example 1. The results of the experiment are presented in table. 4. EXAMPLE 4. Pre-emergence method. A. The active substances were mixed with alumina and sand, and the mixture was introduced into the compost, into which the seeds of experimental plants were then sown and grown in a greenhouse for 21 days. B. The seeds of the experimental plants were sown in the prepared soil, and then the soil was sprayed with aqueous suspensions of active substances. After that, the plants were grown in a greenhouse for 21 days. . Evaluation of the herbicidal action was carried out visually according to the scale: O — no effect; 100 is full of plant death. The results of the experiments are presented in table. 5. (dose of active ingredient in all cases x 2.8 kg / ha). Example The experiment was carried out by pre-emergence treatment of experimental plants with a dose of active substances of 11.2 kg / ha. Rating scale: O - no effect / 9 - full of plant death. The results of the experiment are presented in table. B. PRI me R b. The experiment was carried out under the conditions of Example 1 (post-hrs method), But using other experimental plants. The results of the experiment in the table. 7, PRI me R 7. Herbicidal effect of dry mixtures. Experiments were carried out in field conditions in sugar beet crops. The treatment was carried out using both pre-emergence and post-emergence methods.
    Table 2
    95 100 100100
    but
    100 100 100100
    10 o 100100
    to
    80 75 100100
    90 95 10040.
    80 70 100100
    60 10 -.
    100 100 100100
    95 100 100100
    Continued table. J
    50
    100 100
    100 65 100 100 20
    30 -10
    eleven
    784733 100 95 100 100 100 85 Wild Oat
    validation
    note And the substances in the soil,
     h tillage top
    B (by spraying).
    4 9
    9 9 9 9 9 8
    4 9 9 9 9 5
    6 4 4 About
    Experienced
    Herbicidal effect of the active substance at the next dose, kg / ha of plant
    100 100 100 Continued table. five
    Table
    4 9 7 4 5 3
    1 o 2 2
    Table 7
    100
    100 95 95
    95 95 100
    100 100 100 100 100 100
    About 7
    1 1 1 1+
    48
    2 + 1
    Continued table. 7
    33
    19 35
    7
    68
    权利要求:
    Claims (2)
    [1]
    59. Claim 1. Herbicidal coyuthosis containing a pyrazolopyrimidine derivative as an active substance, auxiliary components selected from the group of liquid or solid carriers, surfactants, characterized in that, in order to enhance the herbicidal activity, it contains derivatives as an active substance pyrazolopyrimidine common formyJSh 1 and its tautomers where RRR is hydrogen, alkyl Q Feni skyl C – O ,, trifluoromethyl hydrogen, alkyl C – Co, benzyl, hydrogen, methyl, acetyl. R - together can mean benzylidene, R together with nitrogen atom can mean 1-pyrrolidino, 1-piperilino or 4-morpholino, in the amount of from 0.5 to 85 wt.%. 2, the herbicidal composition according to claim 1, characterized in that it further comprises 2-ethoxy-2,3-dihydro-3, 3-dimethylbenzofuran-5-yl-methanesulfonate of the formula, with the following weight ratio of compounds of formulas I and II 2 -3: 1 respectively. Sources of information taken into account in the examination 1, Patent IT 3833582, cl. 260-25G, 4F, published. 09/04/74 (prototype).
    [2]
    2. The patent of England 1271659, cl. C 2 C, pub. 04/26/72.
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    同族专利:
    公开号 | 公开日
    DK206377A|1977-11-16|
    GB1567781A|1980-05-21|
    DE2720442A1|1977-12-08|
    PL198110A1|1979-06-18|
    BE854423A|1977-11-09|
    CS201048B2|1980-10-31|
    DD132228A5|1978-09-13|
    FR2351119A1|1977-12-09|
    IL52085D0|1977-07-31|
    NL7705303A|1977-11-17|
    SE7705638L|1977-11-16|
    US4163846A|1979-08-07|
    ES458808A1|1978-08-16|
    JPS52139092A|1977-11-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3098075A|1956-02-10|1963-07-16|Ciba Geigy Corp|New pyrazolo-pyrimidines|
    US3211728A|1958-04-17|1965-10-12|Ciba Geigy Corp|3-amino-6-heterocyclic amino and 1 or 2-lower alkyl-3-amino-6-amino-pyrazolo pyrimidines|
    FR2264015B1|1974-03-13|1976-12-17|Pfizer|US4603203A|1983-12-14|1986-07-29|Takeda Chemical Industries, Ltd.|3-aminopyrazolo[3,4-d]pyrimidine derivatives and production thereof|
    AU2006283592A1|2005-08-22|2007-03-01|Amgen Inc.|Pyrazolopyridine and pyrazolopyrimidine compounds useful as kinase enzymes modulators|
    WO2013106254A1|2012-01-11|2013-07-18|Dow Agrosciences Llc|Pesticidal compositions and processes related thereto|
    WO2014126580A1|2013-02-15|2014-08-21|Dow Agrosciences Llc|Pesticidal compositions and processes related thereto|
    WO2014149206A1|2013-03-15|2014-09-25|Dow Agrosciences Llc|Pyrazolopyrimidine-based insecticidal compositions and related methods|
    WO2018099952A1|2016-11-30|2018-06-07|Oncotyrol Center For Personalized Cancer Medicine Gmbh|3-amino-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-ones as cyclin dependent kinase inhibitors|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB20147/76A|GB1567781A|1976-05-15|1976-05-15|Pyrazolopyrimidines|
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