• 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:
    Substituted benzophenone hydrazones of formula I …<CHEM>… in which R, Q, R<2> and R<4> have the meaning given in the description. …<??>The hydrazones have pesticidal activity, especially againct insects and acarids, and pesticidal compositions and methods are described. Methods of making the hydrazones are also described.
    公开号:SU1055330A3
    申请号:SU802969257
    申请日:1980-08-29
    公开日:1983-11-15
    发明作者:Петер Джайлз Дэвид；Сесил Керри Джон；Козлик Антонин；Харпер Палмер Брайон；Вильям Шатлер Стефан；Джон Виллис Роберт
    申请人:Дзе Бутс Компани Лимитед (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a process for the preparation of new substituted benzophenone hydrazones of formula 1 KSOgo- / where R is methyl or trifluoromethyl; C, | -C5, -alkoxy; Rn is hydrogen or CrCijj-alkyl i which exhibit insecticidal activity and therefore can be used in agriculture. In the literature, the interaction of unsubstituted hydrazones with ortho ethers is entered with the formation of the corresponding alkoxyazines. The reaction is carried out with, depending on the starting materials, in the presence or absence of acetic acid or, for example, pyridinium chloride, or in the appropriate case of base 1J. The aim of the invention is to develop a method for producing new substituted benzophenone hydrazones of a formula that would have a high biological activity. This goal is achieved by the fact that according to the method of obtaining new compounds of the formula 1-unsubstituted hyperazone of the formula 11 -lvlH2 where R - has the above values is subjected to interaction with the compound of the formula 111 (KiljRj where R, and Rn- have the above values, at 0-10 ° C. Structural formulas of the compounds were confirmed by the data of elementary other relevant analyzes. Methods for the preparation of the starting products. The reaction of p-chlorobenzoyl chloride was carried out under the conditions of Friedel-Krasa reaction in the presence of aluminum chloride, resulting in ch-chloro-oxybenzophenone with mp 179rl8l C (B. solution of 5 g of this product in 6 mp of pyridine 2.5 g of methanesulfonyl chlorine are added at room temperature. The reagents are then kept on the steam bath for 1.5 hours, after which the liquid the reaction product is poured on 30 V diluted hydrochloric acid, a solid is obtained, which is filtered and dried in air, recrystallized from technical ethyl alcohol, which is centered by methyl alcohol, and half-chloro-methylsulfonyloxybenzophenbn with m.p. 120-121 ° C (B). To a solution of 9.35 g of this product in 200 ml of ethanol was added; 8 ml of hydrazingsDrata, and then 1.5 ml of glacial acetic acid. This mixture was maintained at reflux temperature, stirring for 17 hours. The solvent was then evaporated under reduced pressure to give an oil-like product, which was extracted with chloroform. The extract is washed with water, with an aqueous solution of sodium hydroxide solution and again with water, and then dried over magnesium sulfate. The solvent is evaporated under reduced pressure to obtain an oil-like product. When kept in a quiescent state, crystallization occurs, after completion of which, -chloro-k-methylsulfonylbenzophenone hydrazone is obtained with a melting point of 70-110 ° C (s). 5 g of this product is maintained at reflux in 25 ml of acetone for 2k hours. The mixture is then evaporated under reduced pressure to give 4-chloromethylsulfonyloxybenzophenone isopropylidene hydrazone with m.p. IiS-ltS C. Examples 1-9. 0.05 g of pyridinium chloride is added to a solution of 20 g of product C in 50 ml of triethyl orthoformate and the mixture is kept in a steam bath for 8 hours. As the formation of ethanol, it is distilled off. The mixture is then treated with charcoal, filtered and evaporated under reduced pressure to give an oil-like product, which when rubbed in ethanol turns into a solid state, after which the resulting product is recrystallized from ethanol to obtain ethyl-H-{-chlorophenyl-methylsulfonyloxyphenylmethylene} -hydrogenosilane from m.p. lOt107c, yield 4.8 g (2k% hydrazone). The reaction of the corresponding intermediate C with various esters and acetals of the formula 111 is carried out in a similar manner. The obtained products of the formula 1 are represented; Lena in the table. Example 10. A solution of 0.05 wn concentrated sulfuric acid in 5 ml of trimethyl6 to tomate was added to a solution of 10 g of intermediate C in 50 ml of trimethyl orthoformate and the mixture was incubated for 10 hours in a steam bath. When methanol is formed, it is distilled off with a yut and then the mixture is boiled for 3 hours, during which time additional amounts of methanol are distilled off. Then, an excess of trimethyl orthoformate is removed, and the residue is extracted with petroleum ether, b.p. 60-80 (0), after which the extract is processed in the usual way, as a result of which methyl-M-C-chloro-phenyl-trifluoromethyl sulfonylmethylene) -formahydrazonate is obtained in the form of an oil-like product, yield 5.9 g (53 of hydrp: | she is) . Known structural analogues, in particular unsubstituted benzophenone hydrazones, have a plant growth regulating effect, while the novel compounds of formula 1 have an insecticidal effect. The compounds obtained by the proposed method have an effect on a wide variety of insects that cause great economic damage, causing serious and extensive damage to agricultural crops, in particular, on caterpillars of the cabbage moth, cabbage, scoops of American cotton, parasitizing the Egyptian cotton leaf. Many of the compounds also have an effect on other caterpillars, in particular on caterpillars of the Blast moth caterpillar. Some of the compounds have an affinity for other pests, in particular, on beetles (for example, a mustard beetle, a small mealworm (about and the face of a mealworm), on cockroaches, in particular, a red cockroach, on aphids such as pea aphids. Many of the compounds have effect on various ticks, bearing significant economic damage, and insect pests that parasitize animals, in particular, livestock. Many compounds have, as has been established, effects on insects at the stages of the larva, for example fly larvae, green meat and mosquitoes. Some compounds have a systemic effect, i.e. the insecticidal effect is the internal tissues of animals O treated with such compounds. This property is important in the treatment of animals, in particular cattle, which is infected with asekomi, found imis at the stage of azviti, where they live in fka-, x, for example, subcutaneous gadfly.Nonly of the compounds have taKme effect on lice, runes of sheep and bream-parasites .. THAT was found. Some compounds also have a non-acidic, fungicidal and herbicidal action and properties of plant growth regulators. EXAMPLE 11, KoMnoai UHH, w / v% Contained: Water Dispersible Concentrate Product of Example 1 8 Product Sopraphor 5 (Ethoxylated Polyarylphenol) 3 Product Soprafor 70 (Calcium Alkylaryl Sulfonate) 2 H Methyl Pyrrolidone Up to 100 Emulsifiable concentrate Product of Example 2 12.5 Product Atlox 851 -V 1.5 Product Atlox B 3.5 Product Esso 200 Do.100 Water Dispersible Concentrate Emulsifiable Concentrate Product of Example 6 30 Product Atlox 851 B. 5 Product Atlox B 5 Xylene QO 100 Means for Etching Product of Example 6 10 Product Douanol 1 PM. (Dipropylene glycol methyl ether). Up to 100 Products Atlox 4851 V and 4855 B per calcium dodecyl benzene sulfonate with triglyceride ethoxylate. Example 12. The effect of compounds obtained by the proposed method on the larvae of the cabbage moth. 10 larvae are placed in a small container together with 1 square. inch {6.45 square cm) of cabbage, which is impregnated with the test solution and then allowed to dry. After 24 hours, the efficacy of g (number of dead insects) is evaluated.
    For each test combination and each of the test solutions of different concentrations, two experiments were carried out, which allows to determine the LO and LD flags for all compounds to be less than 5000 g / 1000000 g.
    Pyridinium hydrochloride was not used, acetic acid was used instead of pyridinium hydrochloride.
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING SUBSTITUTED BEN30PHENOHYDRA30H0B of the formula
    R1 TT - N = c < R (D · RS0 2 0 - <(Zy с —--- ^ - θ-Cl where R is methyl or trifluoromethyl;
    Rf-C ^ -Cd alkoxyl;
    Ry is hydrogen or C (-C $ -alkyl, characterized in that the unsubstituted hydrazone of the formula wherein R is as defined above, is reacted with a compound of the formula. (Ri) 3 R 2 c (PO where R | and R Have the above values,.
    at a temperature of 0-100 ° C.
    >
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    引用文献:
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