953030-84-7

Basic information

• Product Name: Buprofezin [iso]
• Synonyms: (Z)-2-((1,1-Dimethylethyl)imino)tetrahydro-3-(1-methylethyl)-5-phenyl-4H-1,3,5-thiadiazin-4-one;Buprofezin [iso]
• CAS NO: 953030-84-7
• Molecular Formula: C16H23N3OS
• Molecular Weight: 305.43832
• Mol File: 953030-84-7.mol
• Article Data: 9

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Buprofezin [iso](CAS DataBase Reference)
• NIST Chemistry Reference: Buprofezin [iso](953030-84-7)
• EPA Substance Registry System: Buprofezin [iso](953030-84-7)

Safety Data

• Hazardous Substances Data: 953030-84-7(Hazardous Substances Data)

Usage

General Description

Buprofezin [iso] is an insect growth regulator used primarily as an insecticide to control pests in crops such as cotton, pome fruits, vegetables, and ornamentals. It interferes with the growth and development of insects by inhibiting the production of chitin, a key component of their exoskeleton. Buprofezin [iso] is effective against a wide range of pests, including whiteflies, scale insects, and leafhoppers, and is considered to have low toxicity towards non-target organisms and the environment. It is available in various formulations such as emulsifiable concentrates, wettable powders, and soluble concentrates, and is typically applied as a foliar spray. Its use is regulated to minimize the risk of resistance development and environmental impact.

Upstream product

• 52599-24-3 N-tert-butyl-N'-isopropylthiourea 
• 52123-54-3 N-Chloromethyl-N-phenylcarbamoyl chloride 
• 100-61-8 N-methylaniline 
• 590-42-1 tert-butyl isothiocyanate 

Relevant articles and documents

Method for continuously synthesizing buprofezin

The invention discloses a method for continuously synthesizing buprofezin, and belongs to the technical field of chemical synthesis. The method for continuously synthesizing buprofezin comprises the following steps: S1, continuously acylating N-methylaniline and phosgene in a solvent, and continuously deacidifying to obtain an acyl chloride solution; S2, carrying out continuous chlorination and continuous deacidification on the acyl chloride solution and chlorine under the action of an initiator to obtain a chloride solution; S3, adding buprothiourea, a catalyst and an acid-binding agent intothe chloride solution, carrying out continuous mixing reaction, crystallizing and drying a reaction product to obtain buprofezin of which the content is greater than or equal to 99.0% and the total yield is greater than or equal to 88% based on N-methylaniline. The method for continuously synthesizing buprofezin solves the defects caused by batch production in China, has the advantages of continuous reaction, high automation degree, small equipment size, high operation safety, few side reaction products, high conversion rate and good product quality, can effectively improve the production efficiency and reduce the production cost, and has very good popularization and application values.

Preparation method of buprofezin

The invention provides a preparation method of buprofezin, comprising the steps of 1), adding sodium thiocyanate and water into an esterification kettle until dissolution; adding tertiary butanol andhydrochloric acid to obtain a mixed ester; allowing transposition and catalytic reaction to obtain t-butyl isothiocyanate; 2), adding the t-butyl isothiocyanate into chlorobenzene, stirring, dropwiseadding isopropyl amine to obtain 1-isopropyl-3-tert-butylthiourea solution; 3), adding N-methylaniline into chlorobenzene; introducing carbonyl chloride and chlorine gas in sequence to obtain N-chloromethyl-N-benzenecarbamoylchloride solution; 4), adding sodium bicarbonate into water, and adding the resultant into chlorobenzene; adding the 1-isopropyl-3-tert-butylthiourea solution; dropwise addingthe N-chloromethyl-N-benzenecarbamoylchloride solution, filtering, allowing layering, performing high-vacuum steaming to remove the chlorobenzene, crystallizing, centrifuging, and drying to obtain buprofezin. The substitutive average yield of the preparation process of buprofezin reaches 90% and above; the content of finished buprofezin reaches 98.0% and above; the preparation process is free ofammonia nitrogen wastewater.

Active agent combinations

The novel active compound combinations of extracts from seeds of the neem tree and the active compounds of groups (B) to (F) listed in the description have very good insecticidal and acaricidal properties.