Chloroacetyl chloride is an important organic chemical intermediate widely used in pesticides , medicines, dyes, various additives, etc. As an excellent acylating agent, the most used field is the pesticide industry. Chloroacetyl chloride replaces traditional organic raw materials for pesticide synthesis, which can greatly improve product yield and quality, and reduce pollution. Therefore, chloroacetyl chloride has a broad application prospect in the pesticide industry. This article will focus on the application of chloroacetyl chloride in the pesticide industry.
Alachlor, chemical name 2-chloro-N-(2,6-diethylphenyl)-N (methoxy-acetamide, synthesis method: reaction of 2,6-diethylaniline with aqueous formaldehyde solution, 2,6-diethyltoluidine is formed, and then reacted with chloroacetyl chloride to form an adduct which is reacted with methanol, and ammonia is used as an acid binding agent to remove one molecule of hydrogen chloride to obtain alachlor. Amine is a selective pre-emergence herbicide , mainly used in corn, soybean, peanut, sugar cane, cotton, rapeseed and other crops, prevention and treatment of 1-year-old weeds and some broad-leaved weeds. It is currently the backbone of global dryland herbicides. .
Acetochlor, chemical name α-chloro-2,6-diethyl-N-ethoxymethyl acetyl instead of aniline, reacted with 2,6-diethylaniline and formaldehyde to obtain N-methylidene-2. 6-Diethylaniline, which is reacted with chloroacetyl chloride to give α-chloro-2,6-diethyl-N-chloromethylalkylacetanilide, which is then reacted with ethanol to give acetochlor. Acetochlor is a pre-emergence herbicide that is suitable for removal of 1-year-old broadleaf weeds and certain perennial weeds in corn, cotton, peanut and soybean fields. It is a highly active, crop-safe and moderately effective weeding. Agent.
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