• 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:
    Die vorliegende Erfindung betrifft Verbindungen der Formel worin Ar, R1, R2 und X die in den Ansprüchen angegebene Bedeutung besitzen, deren Herstellung und deren Verwendung als Pflanzenwachstumsregulatoren.
    公开号:SU1199191A3
    申请号:SU813305843
    申请日:1981-07-02
    公开日:1985-12-15
    发明作者:Рентцеа Костин；Фейергерд Карл-Гейнц；Це Бернд；Юнг Иоганн
    申请人:Басф Аг (Фирма)；
    IPC主号:
    专利说明:

    The origin of DTHOcJTTCH to agriculture is related to the plant growth tool. The goal of the acquisition is to enhance the growth-retaining activity of plants. The desired product is isolated as a mixture of diastereomers or in the form of three forms. The following examples illustrate the preparation of new triazole derivatives of the formula (I). EXAMPLE 1 A. The preparation of the starting compound. To a solution of 144 g (1 mol) of 5-acetyl-5-methyl-1, 3-dioxane and 85.5 g (1 mol) of pyrrolidone in 500 ml of tetra-hydrofuran are added dropwise over 2 hours at 50 With a solution of 498 g (1 mol) of a complex based on pyrrolidone and bromine in 1 liter of tetrahydrofuran. After an additional 8 hours of stirring at 50 ° C, a white precipitate of pyrrolidone hydrobromide is sucked off, washed with 50 ml of tetrahydrofuran and the resulting filtrate is concentrated in vacuo. 220 g (99%) of crude, oily 1- (5-methyl-1, 3-dioxan-5-yl) -2-bromo-ethane-1-it is obtained. A suspension of 100.1 g (1.1 mol) of 1,2,4-triazolide sodium in 300 ml of dry tetrahydrofuran | uranium, stirred under pure nitrogen, is added dropwise at 25 ° C over 2 hours to a solution of 220 g (1 mol) 1- (5-methyl-1,3-dioxan-5-yl) -2-bromo-ethan-1-one in 200 ml of tetrahydrofuran. After 8 hours of heating under reflux, the inorganic precipitate is filtered and the filtrate is concentrated by half and left to stand overnight at +3 C, the precipitate is sucked off, rinsed first with 30 ml of cold (+5 s) tetrahydrofuran, then 80 ml of ether and 100 ml of n-pentane are successively dried. 184 g (87.2%) of 1.CH5-methyl-1, 3 diocan-5-yl) -2-1,2,4-triazolyl- (l) -ethan-1-one are obtained in the form of white crystals with m.p. 95-97 C. B. Preparation of a compound of formula (j), in which X represents a -CO- group. 13.2 g (0.55 mol of sodium hydride in 100 ml of cyxoBoiO dime T1T11f (PM; emide is added dropwise 91 at 20-25 ° C to a solution of 105.5 (0.5 mol)) to a suspension in the atmosphere of a clear suspension. - 5-methyl-1,3-dioxan-5-yl) -2- (l, 2,4-triazolyl- (l) -ethan-1-one in 100 ml of dimethylformamide. After 3 hours of additional stirring, add over at 25 ° C, a solution of 81 g (o, 5 mol) of 4-chlorobenziphloride in 50 ml of dimethylformamide and the reaction mixture is kept stirring for an additional 14 hours. 50 ml of ice-water are carefully added dropwise and the mixture is concentrated in vacuo. 400 ml hl Methylene methylene and 200 ml of water, the orthanic phase is washed three times with 200 ml of water, dried over and concentrated. 112 g are obtained (66.8% j of technically pure 1 g (5-methyl-1,3-diost: Can-5-yl) -2- (, 2,4-triazolyl- (1)) -3- (4-chlorophenyl) -propan-1-it in the form of a light yellow resin (active principle I, a mixture of diastereomers. 1 H-NMR (80 MHz / SOS,): S 0.87 (sing. 3N); 3.1–3.6 (mult, 4H); 3.95–4.4 (trip.2H), 4.5–5.0 (2 dub , together 2H); 5.65-5.95 (q, 1H), 6.8-7.3 (mult., 4H), 7.8 (sing., 1I), 8.0 h. per million (sing., 1H). Example 2: Preparation of a compound of formula (l), in which X represents the group —CH (OH) (p). To a solution of 90 g (0.269 mol) obtained according to Example 1B 1- (5-methyl-1, 3-dioxan-5-yl) -2- (1,2,4-tri-c azolyl (1 / -3- ( 4-chlorophenyl) -propan-1-one in 250 ml of methanol at a temperature between 0 and 11.5 g (0.3 mol) of sodium borane is added in portions. After 12 hours of stirring at 20 ° C, the mixture is concentrated. 1 h in 200 ml of a 20% solution of potassium hydroxide and extracted with 500 ml of methyl chloride. The organic phase is washed three times with 50 ml of water, dried over sodium sulfate and dried (ay. The residue crystallizes at + 5 ° C after adding 20 ml simple ether. Receive 45 g (49,6%) technically pure 1- (5-methyl-1, 3-dioxan-5-yl) -2- (1,2,4-triazolyl- (l)) -3- (4-chlorophenyl) -pronane-1-ol in white crystals with a melting point of 152-154 s (active principle Wr.Il; threo form). Example 3. Preparation of a compound of the formula (t), in which X represents the group -CH (OCO11 ;;), 3 Mixture 22 , 8 g (0.053 mol) 1- (2-isopropyl-5-methyl-1, 3-1,3-dioxan-5-yl) -2 - (, 2-4-triazolyl- (1)) - 3- (4,6-dichlorophenyl) -propan-1-ol, 2 g of imidazole and 10.0 ml of propionic anhydride are stirred for 10 hours at 60 ° C and then concentrated in vacuo. The residue is dissolved in 200 ml of ether and stirred for 30 minutes with 100 ml of 6% bicarbonate sodium solution. The organic phase is worked up analogously to example 2. Technically pure 1 - 2-isopropyl-5-methyl-1, 3-dioxa-3-yl) -1-acetic oxy- (1, 2,4-triazolyl- (1)) is obtained. -3- (4, b-di-chlorophenyl) propane in the form of a threo form with T.Sh1. 118-128 C {from ether, active principle Nr. 111). Yield 71.6%. Analogously to examples 1 and 2 receive the active principle 1U-XX1, summarized in table 1. In this case, the threo form compounds are taken from the reaction mixture according to example 2. The proposed agent is prepared by simply mixing the ingredients. The invention is illustrated by the following example in which a plant growth retardant is tested, wherein the active compound contains a known compound of formula A CH3-l l-CH.i-CH2-Cl CH3 or a known compound / of formula B-ch-H IIN ClCHj) or new compounds 1-111 (see examples 1-3) and 1Y-XX, summarized in table 1. Example 4 (greenhouse experience). In plastic vessels with a diameter of 12.5 cm, plants are grown in a sufficiently fertilized peat substrate for cultivation of crops. The cultivation is carried out at 20-23 ° C and air humidity 75-80%. During pre-emergence treatment, greenhouses are watered on the day of sowing with an aqueous preparation of plant growth inhibitor, which includes the following components: 20% by weight, indicated in the table. 2-6 active principle; 3% by weight of sodium salt of diisobutylnaphthalenesulfonic acid, I7% by weight of sodium salt of ligninsulfonic acid, and 60% by weight of a silica gel powder. The aqueous preparation is emulsio. During post-harvest treatment, the aqueous preparation of the above composition is sprayed onto the plants -. The growth delay effect is determined at the end of the experiment by determining the height of the growth of the plants. The values thus crawled are compared with the height of growth of untreated plants. In addition, the degree of damage to the plants is still visually determined. The results of the experiment are given in table 2-6.
    Table 1
    P)
    Continuation of table 1
    711991918
    Noslevskhodovaya processing, the duration of the experience of 44 days
    Gblitsa 2 (lawn)
    Post-harvest processing, experience duration 39 days
    T a b l and c a 3
    Tomatoes, cultivar Rotkappehen (red cap)
    9I9919110
    Post-harvest processing, duration of experience 26 days
    Table 4 Co, grade SRF 450
    119919112
    Post-harvest processing, experience duration 43 days
    Start
    Height of plant growth when using 0.5 mg of active principle per vessel
    27,1100
    26,798,8
    26.4. 97.4
    23,586,7
    22,081,2
    21,579.3
    19,572.0
    21,077,5
    20,575,7
    23,084.9
    20,575,7
    Table 6 Co, grade Gieso
    The degree of damage to soy,%
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    权利要求:
    Claims (1)
    [1]
    (54) (57) A MEANS FOR RETAINING PLANT GROWTH, containing an active principle based on triazole derivatives, a surfactant and a stabilizer, characterized in that, in order to enhance the growth retention activity of plants, it contains, as an active principle, a compound of the general formula 1 where at X - - COR - hydrogen,
    R 1 is 4-chloro, 4-fluoro, 3,4,5-trichloro, or R is ethyl;
    R is 4-chloro, or R - and “propyl;
    R is 4-chloro, 4,6-dichloro; at X - CH (OH)
    R is hydrogen, ethyl, n “propyl, I-butyl, isopropyl; R * -
    4-chloro, or R is n-butyl, isopropyl;
    R 1 is 4,6-dichloro, or R is hydrogen;
    R is 4-methyl, hydrogen;
    at X - CH (OSOSN 3 )
    R is isopropyl;
    R 1 - 4,6-dichloro, as a surface-active substance - sodium salt of diisobutylnaphthalene sulfonic acid and sodium salt of lignin sulfonic acid, and as a stabilizer - powder gel of silicic acid in the following quantitative ratio of components, wt.%:
    Compound of Formula 20
    Diiso-butylnaphthalene sulfonic acid sodium salt3
    Ligninsulfonic acid sodium salt17
    Silicic Acid Powder Gel 60 'GKSHTG' , 'P§
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    引用文献:
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    US3156554A|1959-08-10|1964-11-10|Research Corp|Method of controlling relative stem growth of plants|
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    优先权:
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