CN111825597A - Method for synthesizing procymidone - Google Patents

Method for synthesizing procymidone Download PDF

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Publication number
CN111825597A
CN111825597A CN202010733568.XA CN202010733568A CN111825597A CN 111825597 A CN111825597 A CN 111825597A CN 202010733568 A CN202010733568 A CN 202010733568A CN 111825597 A CN111825597 A CN 111825597A
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CN
China
Prior art keywords
procymidone
water
trichlorobenzene
temperature
synthesizing
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Pending
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CN202010733568.XA
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Chinese (zh)
Inventor
柴明根
高金平
廖永
张东辉
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JIANGXI HEYI CHEMICALS CO Ltd
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JIANGXI HEYI CHEMICALS CO Ltd
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Priority to CN202010733568.XA priority Critical patent/CN111825597A/en
Publication of CN111825597A publication Critical patent/CN111825597A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/52Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring condensed with a ring other than six-membered

Abstract

The invention discloses a method for synthesizing procymidone, which comprises the following specific steps: s1: adding methyl chloropropionate, ammonia water and a catalyst into a 500ml four-neck flask with a stirrer, and mixing and stirring for later use; s2: heating and refluxing for 4h, and controlling methyl chloropropionate to be less than 1% in the intermediate process; s3: when the temperature is raised to 60 ℃, adding water and 1,3, 5-sym-trichlorobenzene, carrying out heating reflux reaction, controlling the content of the 1,3, 5-sym-trichlorobenzene to be less than 0.5% in the middle process, and discharging when the temperature is raised to 60 ℃ to obtain a solid for later use; s4: washing the solid obtained after discharging twice with water, and then washing with alcohol for 1 time for later use; s5: and (3) drying the substance washed by the water for 2 times and the alcohol for 1 time to obtain the procymidone. The route of the invention does not select high-price raw material 3, 5-dichloroaniline, has the characteristics of less three wastes, high product yield and good quality, and has obvious economic and social benefits.

Description

Method for synthesizing procymidone
Technical Field
The invention relates to the technical field of procymidone, in particular to a method for synthesizing procymidone.
Background
Procymidone is a systemic fungicide developed and produced by Sumitomo chemical industry Co. Can effectively inhibit the synthesis of triglyceride in the thalli, and has double functions of protection and treatment. Mainly acts on cell membranes, hinders the synthesis of normal cell walls at the top of hyphae, and inhibits the development of hyphae. The main control objects are sclerotinia sclerotiorum and gray mold, and the composition has good protection effect, long lasting period and can prevent the development of scabs. Is suitable for fruit trees such as corn, cucumber, tomato, scallion, rape, grape, strawberry, peach, cherry, etc. The main preparation types are: 50% of procymidone wettable powder, 30% of granular fumigant, 25% of flowable powder and colloidal suspension. According to data query, the technology for synthesizing procymidone mainly comprises the following steps: and (3) reacting methyl methacrylate with 3, 5-dichloroaniline to obtain the procymidone.
The 3, 5-dichloroaniline used as the raw material in the process is difficult to source and expensive, and a large amount of acidic wastewater and waste residues are generated during the production of the raw material; at present, the domestic procymidone is synthesized by adopting the process, and a plurality of environmental pollution factors and cost pressure exist.
Disclosure of Invention
The invention aims to provide a method for synthesizing procymidone, which comprises the following specific steps:
s1: adding methyl chloropropionate, ammonia water and a catalyst into a 500ml four-neck flask with a stirrer, and mixing and stirring for later use;
s2: heating and refluxing for 4h, and controlling methyl chloropropionate to be less than 1% in the intermediate process;
s3: when the temperature is raised to 60 ℃, adding water and 1,3, 5-sym-trichlorobenzene, carrying out heating reflux reaction, controlling the content of the 1,3, 5-sym-trichlorobenzene to be less than 0.5% in the middle process, and discharging when the temperature is raised to 60 ℃ to obtain a solid for later use;
s4: washing the solid obtained after discharging twice with water, and then washing with alcohol for 1 time for later use;
s5: and (3) drying the substance washed by the water for 2 times and the alcohol for 1 time to obtain the procymidone.
Preferably, the molar ratio of methyl methacrylate to ammonia is: 1:1.1-1.5.
Preferably, the catalyst is an organometallic complex of copper or antimony.
Preferably, the molar ratio of the methyl chloropropionate to the 1,3, 5-trichlorobenzene is 1.1-1.3: 1.
Preferably, the 1,3, 5-trichlorobenzene can be replaced by 1, 3-dichloro-5-bromobenzene.
Compared with the prior art, the invention has the beneficial effects that: the route of the invention does not select high-price raw material 3, 5-dichloroaniline, has the characteristics of less three wastes, high product yield and good quality, and has obvious economic and social benefits.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
56.8g of methyl chloropropionate, 22.8g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the content of the methyl chloropropionate is controlled to be less than 1%, the temperature is reduced to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is reduced to 60 ℃, the materials are discharged, the materials are washed twice, washed once with alcohol and dried, 842g of procymidone, the content is 98%, and the yield is 94.
Example 2
56.8g of methyl chloropropionate, 23.8g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the content of the methyl chloropropionate is controlled to be less than 1%, the temperature is reduced to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is reduced to 60 ℃, the materials are discharged, the materials are washed twice by water, washed by alcohol once and dried, thus 839g of procymidone, the content is 98.5% and the.
Example 3
57g of methyl chloropropionate, 22.8g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the methyl chloropropionate is controlled to be less than 1%, the temperature is increased to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is increased to 60 ℃, the materials are discharged, the water washing is carried out twice, the alcohol washing is carried out once, and the drying is carried out, thus obtaining 847g of procymidone, the content of.
Example 4
57g of methyl chloropropionate, 23g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the methyl chloropropionate is controlled to be less than 1%, the temperature is raised to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is raised to 60 ℃, the materials are discharged, the water washing is carried out twice, the alcohol washing is carried out once, and the drying is carried out, thus obtaining 843g of the procymidone.
Example 5
57.6g of methyl chloropropionate, 24.6g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the content of the methyl chloropropionate is controlled to be less than 1%, the temperature is reduced to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is reduced to 60 ℃, the materials are discharged, the materials are washed twice, washed once with alcohol and dried, and 852g of procymidone, the content of 98.3% and the yield of.
Example 6
56.4g of methyl chloropropionate, 23.6g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the content of the methyl chloropropionate is controlled to be less than 1%, the temperature is reduced to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is reduced to 60 ℃, the materials are discharged, the materials are washed twice, washed once with alcohol and dried, and the pythium procumbens 829g, the content is 98.9% and.
Example 7
57.2g of methyl chloropropionate, 23.5g of 35% ammonia water and 0.5g of catalyst are put into a 500ml four-neck flask with stirring, the temperature is raised and the reflux reaction is carried out for 4h, the content of the methyl chloropropionate is controlled to be less than 1%, the temperature is reduced to 60 ℃, 150g of water and 55.8g of 1,3, 5-trichlorobenzene are added, the temperature is raised and the reflux is carried out, the content of the 1,3, 5-trichlorobenzene is controlled to be less than 0.5%, the temperature is reduced to 60 ℃, the materials are discharged, the materials are washed twice by water, washed by alcohol once and dried, thus 839g of procymidone, the content is 98.6% and the.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. A method for synthesizing procymidone, which is characterized by comprising the following steps: the method for synthesizing the procymidone comprises the following specific steps:
s1: adding methyl chloropropionate, ammonia water and a catalyst into a 500ml four-neck flask with a stirrer, and mixing and stirring for later use;
s2: heating and refluxing for 4h, and controlling methyl chloropropionate to be less than 1% in the intermediate process;
s3: when the temperature is raised to 60 ℃, adding water and 1,3, 5-sym-trichlorobenzene, carrying out heating reflux reaction, controlling the content of the 1,3, 5-sym-trichlorobenzene to be less than 0.5% in the middle process, and discharging when the temperature is raised to 60 ℃ to obtain a solid for later use;
s4: washing the solid obtained after discharging twice with water, and then washing with alcohol for 1 time for later use;
s5: and (3) drying the substance washed by the water for 2 times and the alcohol for 1 time to obtain the procymidone.
2. A method of synthesizing procymidone according to claim 1, wherein: the molar ratio of methyl methacrylate to ammonia water was: 1:1.1-1.5.
3. A method of synthesizing procymidone according to claim 1, wherein: the catalyst is an organometallic complex of copper or antimony.
4. A method of synthesizing procymidone according to claim 1, wherein: the molar ratio of methyl chloropropionate to 1,3, 5-sym-trichlorobenzene is 1.1-1.3: 1.
5. A method of synthesizing procymidone according to claim 1, wherein: the 1,3, 5-trichlorobenzene may be replaced by 1, 3-dichloro-5-bromobenzene.
CN202010733568.XA 2020-07-27 2020-07-27 Method for synthesizing procymidone Pending CN111825597A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671797A (en) * 2020-12-24 2022-06-28 北京颖泰嘉和生物科技股份有限公司 Preparation method of procymidone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7409983A (en) * 1969-03-19 1974-09-25
JPS56169670A (en) * 1980-06-02 1981-12-26 Sumitomo Chem Co Ltd Preparation of n-phenylcyclopropanecarboximide derivative
JPS572272A (en) * 1980-06-04 1982-01-07 Sumitomo Chem Co Ltd Preparation of n-phenylcyclopropanedicarboxylic acid imide derivative
CN101906063A (en) * 2010-08-13 2010-12-08 陕西亿农高科药业有限公司 Scale synthesis process of procymidone original drug of efficient agricultural bactericide in two steps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7409983A (en) * 1969-03-19 1974-09-25
JPS56169670A (en) * 1980-06-02 1981-12-26 Sumitomo Chem Co Ltd Preparation of n-phenylcyclopropanecarboximide derivative
JPS572272A (en) * 1980-06-04 1982-01-07 Sumitomo Chem Co Ltd Preparation of n-phenylcyclopropanedicarboxylic acid imide derivative
CN101906063A (en) * 2010-08-13 2010-12-08 陕西亿农高科药业有限公司 Scale synthesis process of procymidone original drug of efficient agricultural bactericide in two steps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
沃解明: "新型农用杀菌剂——腐霉利", 《上海化工》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671797A (en) * 2020-12-24 2022-06-28 北京颖泰嘉和生物科技股份有限公司 Preparation method of procymidone

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Application publication date: 20201027