CN115477615A - N- (3- (benzimidazole-2-yl) phenyl) amide compound and preparation method and application thereof - Google Patents

N- (3- (benzimidazole-2-yl) phenyl) amide compound and preparation method and application thereof Download PDF

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CN115477615A
CN115477615A CN202211264973.7A CN202211264973A CN115477615A CN 115477615 A CN115477615 A CN 115477615A CN 202211264973 A CN202211264973 A CN 202211264973A CN 115477615 A CN115477615 A CN 115477615A
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史建俊
李伟伟
吴潇然
汪燕
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Huangshan University
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D235/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
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    • C07D235/18Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2
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    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
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    • AHUMAN NECESSITIES
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Abstract

The invention discloses an N- (3- (benzimidazole-2-yl) phenyl) amide compound and a preparation method and application thereof, substituted o-nitrochlorobenzene reacts with substituted amine to generate substituted o-nitroaniline which is reduced to substituted o-phenylenediamine by iron powder, then the o-phenylenediamine is condensed with substituted m-nitrobenzoic acid to generate substituted benzimidazole biphenyl, and the substituted benzimidazole biphenyl is reduced by the iron powderSubstituted benzimidazolyl aniline is used as the original material, and then the benzimidazolyl aniline reacts with acyl chloride to prepare the N- (3- (benzimidazole-2-yl) phenyl) amide compound. The preparation method is simple and convenient to operate, and the 61 prepared new compounds are prepared by 1 H NMR and MS characterization are carried out, and insecticidal activity tests are carried out at the concentration of 200 mu g/mL, and the results show that most of the compounds have certain insecticidal activity, wherein the mortality rate of part of the compounds to armyworm is more than 85%, the mortality rate of part of the compounds to alfalfa aphid is more than 85%, and the mortality rate of part of the compounds to rice planthopper is more than 85%.

Description

N- (3- (benzimidazole-2-yl) phenyl) amide compound and preparation method and application thereof
Technical Field
The invention belongs to the technical field of chemical synthesis and drug application, and particularly relates to an N- (3- (benzimidazole-2-yl) phenyl) amide compound, and a preparation method and application thereof.
Background
With the knowledge of pesticides, the continuous maturity of application and development technologies and the development of the scientific treatment theory of pests, the environment-friendly pesticide can gradually replace the high-toxicity and high-residue pesticide.
Benzimidazole as a class of benzo-heterocyclic compounds has a special structure of two N atoms, so that hydrogen bonds are easily formed between benzimidazole and enzymes and action sites in organisms. Benzimidazole and its derivatives exhibit a wide range of biological activities, such as antiviral, anticoagulant, bacteriostatic, insecticidal, etc. Some polyfluoroalkyl groups are gradually introduced into the structure of a pesticide lead compound, and a plurality of high-bioactivity pesticides containing polyfluoroalkyl structures are developed.
Disclosure of Invention
The invention aims to provide an N- (3- (benzimidazole-2-yl) phenyl) amide compound and a preparation method and application thereof, the invention takes a pyridine-imidazole bipyridyl structure as a lead, arranges electrons of the pyridine-imidazole bipyridyl structure into an alkyl benzimidazole biphenyl structure, introduces an amide group at the meta position of a middle benzene ring, and then carries out appropriate structural modification and reformation to design and synthesize a series of N- (3- (benzimidazole-2-yl) phenyl) amide compounds.
The invention provides an N- (3- (benzimidazole-2-yl) phenyl) amide compound, which has a structural formula shown in a formula (I):
Figure BDA0003892733070000011
in the formula (I), the substituent X is polyfluoroalkyl, alkyl, halogen, nitro or nitrile group, and the substituent R 1 Substituted or unsubstituted, when substituted, R 1 Is alkyl, phenyl or substituted alkyl, substituent R 2 Substituted or notSubstituted, when R is substituted 2 Is halogen, nitryl, nitrile group, alkoxy, alkylthio group, sulfoxide group or sulfone group, and a substituent R 3 Is alkyl, alkoxy, substituted alkyl, substituted alkoxy, phenyl, substituted phenyl, heteroaryl or substituted heteroaryl, and the substituent on the substituted phenyl and the substituted heteroaryl is alkyl, alkoxy, halogen, nitro or nitrile group.
Preferably, in formula (I), the substituent X is trifluoromethyl or heptafluoroisopropyl, and the substituent R is 1 Substituted or unsubstituted, when substituted, R 1 Is methyl, ethyl or cyclopropyl, substituent R 2 Substituted or unsubstituted, when substituted, R 2 Is 2-chloro or 4-chloro, substituent R 3 Is methyl, cyclohexyl, ethoxy, n-propoxy, n-butoxy, 2-chloroethyl, (2, 3-difluorophenyl) methyl, benzyloxy, phenyl, 2-methylphenyl, 3-methylphenyl, 4-tert-butylphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 3-fluorophenyl, 4-fluorophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2, 6-difluorophenyl, 2, 4-dichlorophenyl, 2-trifluoromethylphenyl, 2-nitrophenyl, 3-nitrophenyl, 4-cyanophenyl, 2-chloro-3-nitrophenyl, furan-2-yl, pyridin-3-yl, phenoxy, 2-chloropyridin-3-yl, 6-chloropyridin-3-yl or 3-ethyl-1, 4-dimethyl-1H-pyrazol-5-yl.
Further, the invention also provides a preparation method of the N- (3- (benzimidazole-2-yl) phenyl) amide compound, which comprises the following steps;
1) Using dimethyl formamide as solvent to substitute o-nitrochlorobenzene and substituted amine R 1 NH 2 Reacting at room temperature for 3-6h, stopping reaction after TLC detection reaction is completed, extracting with ethyl acetate, drying, and evaporating under reduced pressure to remove low-boiling-point substances to obtain a compound shown in formula (II);
Figure BDA0003892733070000021
2) Adding ethanol aqueous solution and iron powder into the compound shown in the formula (II) obtained in the step 1), dropwise adding saturated ammonium chloride aqueous solution, carrying out reflux reaction for 2-4h, stopping the reaction after TLC detection reaction is completed, filtering, extracting with ethyl acetate, drying, and removing low-boiling-point substances through reduced pressure evaporation to obtain the compound shown in the formula (III);
Figure BDA0003892733070000022
3) Adding substituted m-nitrobenzoic acid and phosphorus oxychloride into the compound shown in the formula (III) obtained in the step 2), heating and refluxing for 5-10 h, detecting that the reaction is complete, slowly pouring the reaction liquid into ice water after the reaction liquid is cooled to room temperature, extracting the mixture with ethyl acetate, drying, evaporating under reduced pressure to remove low-boiling-point substances, and performing column chromatography separation and purification to obtain a compound shown in the formula (IV);
Figure BDA0003892733070000031
4) Adding an ethanol water solution and iron powder into the compound shown in the formula (IV) obtained in the step 3), dropwise adding a saturated ammonium chloride water solution, carrying out reflux reaction for 4-8h, stopping the reaction after TLC detection reaction is completed, filtering, extracting with ethyl acetate, drying, carrying out reduced pressure evaporation to remove low-boiling-point substances, and carrying out column chromatography separation and purification to obtain a compound shown in the formula (V);
Figure BDA0003892733070000032
5) Dissolving the compound shown in the formula (V) obtained in the step 4) in dry tetrahydrofuran, adding triethylamine, and dropwise adding acyl chloride R under the ice salt bath condition 3 COCl, stopping reaction after TLC detection reaction is completed, filtering, evaporating under reduced pressure to remove low-boiling-point substances, and separating and purifying by column chromatography to obtain the compound shown in the formula (I).
Figure BDA0003892733070000033
The reaction process is as follows:
Figure BDA0003892733070000041
further, in the step 1), the substituted o-nitrochlorobenzene and the substituted amine R 1 NH 2 The mass ratio of (A) to (B) is 1; in the step 2), the mass ratio of the compound shown in the formula (II) to the iron powder is 1; in the step 3), the mass ratio of the compound shown in the formula (III) to the substituted m-nitrobenzoic acid to the phosphorus oxychloride is 1-1.5; in the step 4), the mass ratio of the compound shown in the formula (IV) to the iron powder is 1; in the step 5), the compound shown as the formula (V) and acyl chloride R 3 The mass ratio of COCl to triethylamine is 1.
Further, the volume amount of dimethylformamide dissolving the substituted o-nitrochlorobenzene in the step 1) is 0.5 to 3mL/mmol in terms of the amount of the substance substituting the o-nitrochlorobenzene, the volume amount of the aqueous ethanol solution dissolving the compound represented by the formula (ii) in the step 2) is 2 to 10mL/mmol in terms of the amount of the substance dissolving the compound represented by the formula (ii), the volume ratio of ethanol to water in the aqueous ethanol solution is 2 to 8, and the volume amount of tetrahydrofuran dissolving the compound represented by the formula (v) is 2 to 6mL/mmol in terms of the amount of the substance dissolving the compound represented by the formula (v).
Further, the volume of the saturated aqueous ammonium chloride solution added dropwise in the step 4) is 0.2 to 2mL/mmol in terms of the amount of the compound represented by the formula (IV).
Further, the eluents for column chromatography in step 5) are mixed with petroleum ether and ethyl acetate in a volume ratio of 3.
Further, after the reaction liquid in the step 3) is cooled to room temperature, the rate of pouring the reaction liquid into the ice water is 1-5 mL/min.
Furthermore, the invention also provides application of the N- (3- (benzimidazole-2-yl) phenyl) amide compound in preparing pesticides.
The invention has the beneficial effects that:
the preparation method is simple and convenient to operate, and the structure of the obtained product is shown in the specification 1 H NMR and MS were confirmed, and 61 target products obtained were tested for pesticidal activity, and the results indicated that: most of the compounds have certain insecticidal activity under the concentration of 200 mu g/mL, wherein the lethality of the compounds I-16, I-25, I-31, I-36, I-37, I-44, I-55 and I-61 to armyworms is more than 85%, the lethality of the compounds I-4, I-17, I-25, I-32, I-35 and I-40 to alfalfa aphids is more than 85%, and the lethality of the compounds I-7, I-8, I-10, I-20, I-27 and I-37 to rice planthoppers is more than 85%.
The compound provided by the invention is a new compound with insecticidal activity, and provides a foundation for the research and development of new pesticides.
Detailed Description
The present invention is further illustrated by the following examples, which should not be construed as limiting the scope of the invention.
EXAMPLES 1-4 preparation of Compounds II-1 to II-4
50mmoL of substituted o-nitrochlorobenzene (o-nitrochlorobenzene) was added to a 250mL three-neck flask at room temperature
Figure BDA0003892733070000051
The substituent X is 5-CF 3 ,5-(CF 3 ) 2 CF or 6- (CF) 3 ) 2 CF) and 50mL of DMF, stirring by magnetic force until the mixture is fully dissolved, then dropwise adding 50mmoL of amine (methylamine and cyclopropylamine), reacting for 3 hours at room temperature, detecting by TLC (thin layer chromatography) until the reaction is completely finished, then stopping the reaction, adding ethyl acetate into the reaction solution for extraction, washing an organic phase with saturated salt for three times, drying the organic phase with anhydrous magnesium sulfate, and removing low-boiling-point substances by reduced pressure evaporation to obtain compounds II-1-II-4.
Example 5-8 preparation of Compounds III-1 to III-4
To a 500mL three-necked flask equipped with a mechanical stirring and reflux condenser was added 45mmol of the compounds II-1 to II-4 and 200mL of an aqueous ethanol solution (V) Ethanol :V Water (W) = 5), heating to 80 ℃ under stirring, fully dissolving, adding 135mmol of iron powder, dropwise adding 40mL of saturated ammonium chloride aqueous solution, refluxing, stopping reaction after TLC detection reaction is complete, filtering while hot, concentrating the filtrate to 1/5 of the original volume, and adding EAnd A, extracting, washing an organic phase with saturated salt for three times, drying with anhydrous magnesium sulfate, and removing low-boiling-point substances by reduced pressure evaporation to obtain compounds III-1-III-4.
EXAMPLES 9-13 preparation of Compounds IV-1 to IV-5
30mmol of compounds III-1 to III-4 and 30mmol of substituted m-nitrobenzoic acid (m-nitrobenzoic acid) (I) are respectively added into a dry-protected 500mL round-bottom flask
Figure BDA0003892733070000052
H in the phenyl ring by a substituent R 2 Unsubstituted or substituted, when substituted, R 2 2-Cl or 4-Cl), adding 150mmol of phosphorus oxychloride, stirring at normal temperature to dissolve the raw materials, heating and refluxing for 6h, detecting the reaction by TCL completely, slowly pouring the reaction liquid into 500mL of ice water after the reaction liquid is cooled to room temperature, extracting the mixture by using ethyl acetate, washing an organic phase by using saturated salt solution for three times, drying by using anhydrous magnesium sulfate, removing low-boiling-point substances by reduced pressure evaporation, and separating and purifying by using column chromatography (PE: EA = 4) to obtain compounds IV-1-IV-5.
EXAMPLES 14-19 preparation of Compounds V-1 to V-5
34mmol of compounds IV-1 to IV-5 and 204mL of ethanol aqueous solution (V) are respectively added into a 1000mL three-neck flask provided with a mechanical stirring and reflux condenser tube Ethanol :V Water (W) = 5), heating to 80 ℃ under stirring, fully dissolving, adding 85mmol iron powder, dropwise adding 50mL of saturated ammonium chloride aqueous solution, continuing reflux reaction for 7h, stopping reaction after TLC detection reaction is finished, filtering while hot, concentrating the filtrate to 1/5 of the original volume, extracting with EA, washing an organic phase with saturated salt for three times, drying with anhydrous magnesium sulfate, removing low-boiling-point substances through reduced pressure evaporation, and separating by silica gel column chromatography (PE: EA = 6.
EXAMPLE 20 preparation of the target products I-1 to I-61
5mL of dry tetrahydrofuran was added to 61 50mL single-neck round-bottom flasks, 1mmol of the compounds V-1 to V-5 obtained in examples 14 to 19 and 1.2mmol of triethylamine were added to 61 50mL single-neck round-bottom flasks, respectively, followed by stirring to obtain a homogeneous mixture, and the compound was added thereto in the form of an ice salt bathV-1 to V-5 and triethylamine are slowly added with 1.5mmol of substituted acyl chloride R 3 COCl is stirred for 1-3 hours at normal temperature, TCL detects the reaction is complete, low-boiling-point substances are removed through reduced pressure evaporation to obtain a crude product, and then the crude product is separated through silica gel column chromatography (PE: EA =3: 1) to obtain target compounds I-1 to I-61, wherein specific data are shown in tables 1 and 2.
TABLE 1 physicochemical data for N- (3- (benzimidazol-2-yl) phenyl) amides
Figure BDA0003892733070000061
Figure BDA0003892733070000071
Figure BDA0003892733070000081
Figure BDA0003892733070000091
TABLE 2N- (3- (benzimidazol-2-yl) phenyl) amides 1 H NMR and MS data
Figure BDA0003892733070000092
Figure BDA0003892733070000101
Figure BDA0003892733070000111
Figure BDA0003892733070000121
Figure BDA0003892733070000131
Figure BDA0003892733070000141
Figure BDA0003892733070000151
Figure BDA0003892733070000161
Figure BDA0003892733070000171
Figure BDA0003892733070000181
Figure BDA0003892733070000191
Figure BDA0003892733070000201
Figure BDA0003892733070000211
EXAMPLE 21 insecticidal Activity against armyworm
Each test compound is dissolved in DMF containing 1% Tween-80 emulsifier to prepare a mother solution with the mass concentration of 2.5%, and then diluted to 200 mug/mL by using a proper amount of distilled water for later use. And (3) fully soaking a proper amount of corn leaves in the prepared liquid medicine, naturally drying in the shade, putting into a culture dish filled with filter paper, inoculating 20 heads/dish of armyworm larvae in the 3-instar middle period, culturing in an observation room at 24-27 ℃, and investigating results after 72 hours. If the body of the insect is touched by a writing brush, the dead insect is determined to be no response.
TABLE 3 Mosquicidal Activity of N- (3- (benzimidazol-2-yl) phenyl) amides
Figure BDA0003892733070000212
Figure BDA0003892733070000221
The results show that most of the compounds in Table 1 have certain insecticidal activity against armyworms at the tested concentration of 200. Mu.g/mL, and the compounds I-16, I-25, I-31, I-36, I-37, I-44, I-55 and I-61 show more than 85% of lethality against armyworms at the tested concentration of 200. Mu.g/mL.
Example 22 insecticidal Activity against Medicago Aphis
Dissolving each compound to be tested by DMF containing 1% Tween-80 emulsifier to prepare mother liquor with the mass concentration of 2.5%, and then diluting to 200 mug/mL by using a proper amount of distilled water for later use. And (3) carrying out spray treatment on the broad bean leaves with the alfalfa aphids under a Potter spray tower, culturing the treated alfalfa aphids in an observation room at the temperature of 20-22 ℃, and investigating the result after 72 hours. If the body of the insect is touched by a brush pen, no response is regarded as dead insect.
TABLE 4 aphid-killing activity of N- (3- (benzimidazol-2-yl) phenyl) amides
Figure BDA0003892733070000222
Figure BDA0003892733070000231
The results show that most of the compounds in Table 1 have certain insecticidal activity against C.lucerne at the tested concentration of 200. Mu.g/mL, and that the compounds I-4, I-17, I-25, I-32, I-35 and I-40 show a lethality of more than 85% against C.lucerne at the tested concentration of 200. Mu.g/mL.
Example 23 insecticidal Activity against Rice planthopper
Each test compound is dissolved in DMF containing 1% Tween-80 emulsifier to prepare a mother solution with the mass concentration of 2.5%, and then diluted to 200 mug/mL by using a proper amount of distilled water for later use. Fixing 4-6 rice seedlings (about 3-4 cm in length, cultivated indoors) in white quartz sand
Figure BDA0003892733070000232
In the culture dish, CO is connected 2 A plurality of anesthetized 3-year-old midterm nymphs of the brown planthoppers of the rice are placed under a Potter spray tower for quantitative spray treatment (the pressure is 5lb/in 2 The sedimentation amount is 4.35mg/cm 2 ) Each treatment was repeated 3 times, sprayed, covered with a clear plastic cup, placed in an observation room (24-27 ℃ C., 14h light), and the results were investigated after 72 h. When the insect is investigated, the body of the insect is touched with a brush pen lightly, and the insect is regarded as dead insect without reaction.
TABLE 5 Rice planthopper-killing activity of N- (3- (benzimidazol-2-yl) phenyl) amides
Compound (I) Mortality (%) Compound (I) Mortality (%) Compound (I) Mortality (%)
Ⅰ-1 40 Ⅰ-22 20 Ⅰ-43 35
Ⅰ-2 30 Ⅰ-23 35 Ⅰ-44 0
Ⅰ-3 25 Ⅰ-24 20 Ⅰ-45 25
Ⅰ-4 65 Ⅰ-25 20 Ⅰ-46 25
Ⅰ-5 30 Ⅰ-26 10 Ⅰ-47 45
Ⅰ-6 45 Ⅰ-27 85 Ⅰ-48 40
Ⅰ-7 95 Ⅰ-28 30 Ⅰ-49 35
Ⅰ-8 95 Ⅰ-29 10 Ⅰ-50 35
Ⅰ-9 40 Ⅰ-30 60 Ⅰ-51 30
Ⅰ-10 95 Ⅰ-31 15 Ⅰ-52 0
Ⅰ-11 45 Ⅰ-32 20 Ⅰ-53 40
Ⅰ-12 35 Ⅰ-33 15 Ⅰ-54 65
Ⅰ-13 30 Ⅰ-34 20 Ⅰ-55 15
Ⅰ-14 0 Ⅰ-35 0 Ⅰ-56 0
Ⅰ-15 40 Ⅰ-36 30 Ⅰ-57 20
Ⅰ-16 15 Ⅰ-37 90 Ⅰ-58 0
Ⅰ-17 25 Ⅰ-38 10 Ⅰ-59 25
Ⅰ-18 0 Ⅰ-39 30 Ⅰ-60 0
Ⅰ-19 45 Ⅰ-40 35 Ⅰ-61 15
Ⅰ-20 85 Ⅰ-41 20
Ⅰ-21 20 Ⅰ-42 25
The results show that most of the compounds in Table 1 have certain insecticidal activity against rice planthopper at the tested concentration of 200. Mu.g/mL, and the compounds I-7, I-8, I-10, I-20, I-27 and I-37 show more than 85% of lethality against rice planthopper at the tested concentration of 200. Mu.g/mL.
The description is given for the sole purpose of illustrating the invention in a practical form and the scope of the invention should not be considered limited to the exact form set forth in the examples, but rather should be understood to cover all equivalent technical solutions that may be conceived by one skilled in the art based on the inventive concept.

Claims (9)

  1. An N- (3- (benzimidazol-2-yl) phenyl) amide compound, which is characterized by having a structural formula shown in a formula (I):
    Figure FDA0003892733060000011
    in the formula (I), the substituent X is polyfluoroalkyl, alkyl, halogen, nitro or nitrile group, and the substituent R 1 Substituted or unsubstituted, when substituted, R 1 Is alkyl, phenyl or substituted alkyl, substituent R 2 Substituted or unsubstituted, when substituted, R 2 Is halogen, nitryl, nitrile group, alkoxy, alkylthio group, sulfoxide group or sulfone group, and a substituent R 3 Is alkyl, alkoxy, substituted alkyl, substituted alkoxy, phenyl, substituted phenyl, heteroaryl or substituted heteroaryl, and the substituent on the substituted phenyl and the substituted heteroaryl is alkyl, alkoxy, halogen, nitro or nitrile group.
  2. 2. N- (3- (benzimidazol-2-yl) phenyl) amide compounds according to claim 1, characterized in that the substituent X is trifluoromethyl or heptafluoroisopropyl and the substituent R is 1 Substituted or unsubstituted, when substituted, R 1 Is methyl, ethyl or cyclopropyl, a substituent R 2 Substituted or unsubstituted, when substituted, R 2 Is 2-chloro or 4-chloro, substituent R 3 Is methyl, cyclohexyl, ethoxy, n-propoxy, n-butoxy, 2-chloroethyl, (2, 3-difluoro) groupPhenyl) methyl, benzyloxy, phenyl, 2-methylphenyl, 3-methylphenyl, 4-tert-butylphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 3-fluorophenyl, 4-fluorophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2, 6-difluorophenyl, 2, 4-dichlorophenyl, 2-trifluoromethylphenyl, 2-nitrophenyl, 3-nitrophenyl, 4-cyanophenyl, 2-chloro-3-nitrophenyl, furan-2-yl, pyridin-3-yl, phenoxy, 2-chloropyridin-3-yl, 6-chloropyridin-3-yl or 3-ethyl-1, 4-dimethyl-1H-pyrazol-5-yl.
  3. 3. A process for producing an N- (3- (benzimidazol-2-yl) phenyl) amide compound according to claim 1 or 2, which comprises the steps of;
    1) Using dimethyl formamide as solvent to substitute o-nitrochlorobenzene and substituted amine R 1 NH 2 Reacting at room temperature for 3-6h, stopping reaction after TLC detection reaction is completed, extracting with ethyl acetate, drying, and evaporating under reduced pressure to remove low-boiling-point substances to obtain a compound shown in formula (II);
    Figure FDA0003892733060000021
    2) Adding an ethanol aqueous solution and iron powder into the compound shown in the formula (II) obtained in the step 1), dropwise adding a saturated ammonium chloride aqueous solution, carrying out reflux reaction for 2-4 h, stopping the reaction after the TLC detection reaction is completed, filtering, extracting with ethyl acetate, drying, and carrying out reduced pressure evaporation to remove low-boiling-point substances to obtain a compound shown in the formula (III);
    Figure FDA0003892733060000022
    3) Adding substituted m-nitrobenzoic acid and phosphorus oxychloride into the compound shown in the formula (III) obtained in the step 2), heating and refluxing for 5-10 h, detecting that the reaction is complete, slowly pouring the reaction liquid into ice water after the reaction liquid is cooled to room temperature, extracting the mixture with ethyl acetate, drying, evaporating under reduced pressure to remove low-boiling-point substances, and performing column chromatography separation and purification to obtain a compound shown in the formula (IV);
    Figure FDA0003892733060000023
    4) Adding an ethanol water solution and iron powder into the compound shown in the formula (IV) obtained in the step 3), dropwise adding a saturated ammonium chloride water solution, carrying out reflux reaction for 4-8h, stopping the reaction after TLC detection reaction is completed, filtering, extracting with ethyl acetate, drying, carrying out reduced pressure evaporation to remove low-boiling-point substances, and carrying out column chromatography separation and purification to obtain the compound shown in the formula (V);
    Figure FDA0003892733060000031
    5) Dissolving the compound shown as the formula (V) obtained in the step 4) in dry tetrahydrofuran, adding triethylamine, and dropwise adding acyl chloride R under the condition of ice salt bath 3 COCl, stopping reaction after TLC detection reaction is completed, drying, removing low-boiling point substance by reduced pressure evaporation, and separating and purifying by column chromatography to obtain the compound shown in formula (I).
    Figure FDA0003892733060000032
  4. 4. The process according to claim 3, wherein in step 1), the substituted o-nitrochlorobenzene and the substituted amine R 1 NH 2 The mass ratio of (A) to (B) is 1; in the step 2), the mass ratio of the compound shown in the formula (II) to the iron powder is 1; in the step 3), the mass ratio of the compound shown in the formula (III) to the substituted m-nitrobenzoic acid to the phosphorus oxychloride is 1-1.5; in the step 4), the mass ratio of the compound shown in the formula (IV) to the iron powder is 1; in step 5), the compound shown as the formula (V) and acyl chloride R 3 The mass ratio of COCl to triethylamine is 1-1.5.
  5. 5. The process according to claim 3, wherein the amount of dimethylformamide for dissolving the o-nitrochlorobenzene in the step 1) is 0.5 to 3mL/mmol in terms of the amount of the substance for dissolving the o-nitrochlorobenzene, the amount of the aqueous ethanol solution for dissolving the compound represented by the formula (II) in the step 2) is 2 to 10mL/mmol in terms of the amount of the substance for dissolving the compound represented by the formula (II), the volume ratio of ethanol to water in the aqueous ethanol solution is 2 to 8, and the amount of tetrahydrofuran for dissolving the compound represented by the formula (V) is 2 to 6mL/mmol in terms of the amount of the substance for dissolving the compound represented by the formula (V).
  6. 6. The method according to claim 3, wherein the volume of the saturated aqueous ammonium chloride solution added dropwise in step 4) is 0.2 to 2mL/mmol in terms of the amount of the compound represented by the formula (IV).
  7. 7. The preparation method according to claim 3, wherein the eluent for column chromatography in step 5) is a mixture of petroleum ether and ethyl acetate in a volume ratio of 3.
  8. 8. The method according to claim 3, wherein the reaction solution is poured into the ice water at a rate of 1 to 5mL/min after the reaction solution is cooled to room temperature in the step 3).
  9. 9. Use of the N- (3- (benzimidazol-2-yl) phenyl) amide compounds according to claim 1 or 2 for the preparation of insecticides.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151424A (en) * 1965-07-13 1969-05-07 Fisons Pest Control Ltd Benzimidazoles and compositions thereof
CN1638765A (en) * 2001-07-27 2005-07-13 柯里斯公司 Mediators of Hedgehog signaling pathways, compositions and uses related thereto
US20100168084A1 (en) * 2008-05-08 2010-07-01 Huber L Julie Therapeutic compounds and related methods of use
US20110151018A1 (en) * 2008-06-10 2011-06-23 Brandeis University Methods of insect control
US20130023571A1 (en) * 2009-05-06 2013-01-24 Syngenta Crop Protection Llc N- ( 4-perfluoroalkyl-phenyl) -4-triazolyl-benzamides as insecticides
CN104780764A (en) * 2012-09-05 2015-07-15 拜尔农作物科学股份公司 Use of substituted 2-amidobenzimidazoles, 2-amidobenzoxazoles and 2-amidobenzothiazoles or salts thereof as active substances against abiotic plant stress
CN110746407A (en) * 2018-07-23 2020-02-04 南京农业大学 Amide derivative containing benzimidazole group, preparation method and application thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151424A (en) * 1965-07-13 1969-05-07 Fisons Pest Control Ltd Benzimidazoles and compositions thereof
CN1638765A (en) * 2001-07-27 2005-07-13 柯里斯公司 Mediators of Hedgehog signaling pathways, compositions and uses related thereto
US20100168084A1 (en) * 2008-05-08 2010-07-01 Huber L Julie Therapeutic compounds and related methods of use
US20110151018A1 (en) * 2008-06-10 2011-06-23 Brandeis University Methods of insect control
US20130023571A1 (en) * 2009-05-06 2013-01-24 Syngenta Crop Protection Llc N- ( 4-perfluoroalkyl-phenyl) -4-triazolyl-benzamides as insecticides
CN104780764A (en) * 2012-09-05 2015-07-15 拜尔农作物科学股份公司 Use of substituted 2-amidobenzimidazoles, 2-amidobenzoxazoles and 2-amidobenzothiazoles or salts thereof as active substances against abiotic plant stress
CN110746407A (en) * 2018-07-23 2020-02-04 南京农业大学 Amide derivative containing benzimidazole group, preparation method and application thereof

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"RN 2680675-63-0 等", STN-REGISTRY, pages 1 - 49 *
LEENA KEURULAINEN等: "Synthesis and biological evaluation of 2-arylbenzimidazoles targeting Leishmania donovani", BIOORG. MED. CHEM. LETT., vol. 25, pages 1933 - 1937, XP055773531, DOI: 10.1016/j.bmcl.2015.03.027 *
XU ZHANG等: "Synthesis and Bioactivity Evaluation of 2-Arylbenzimidazole Analogues", ASIAN JOURNAL OF CHEMISTRY, vol. 26, pages 1891 - 1894, XP055773532, DOI: 10.14233/ajchem.2014.15551 *
蒋智等: "双芳环酰胺类及苯并咪唑类化合物的合成及其抗柯萨奇病毒活性研究", 中国药物化学杂志, vol. 25, pages 261 - 268 *

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