82107-24-2Relevant academic research and scientific papers
A pesticide intermediate 3, 3, 3 - trifluoro - 2, 2 - dichloro propionaldehyde synthetic method (by machine translation)
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Paragraph 0043; 0044; 0045; 0046; 0049; 0052, (2019/01/05)
The invention belongs to the technical field of organic chemical industry, relates to halogen-containing pyridine phenyl compound is an important intermediate 3, 3, 3 - trifluoro - 2, 2 - dichloro propanal, more specifically, relates to a to 1, 1, 1 - trifluoro tricholoroethane, styrene as raw materials, via addition, dehalogenation, ozonation, reduction reaction to synthesize dingding the insect is prosperous, dingding tick urea, pyrrole fluorine chlorine standing grain spirit, fluazinam important intermediate 3, 3, 3 - trifluoro - 2, 2 - dichloro propionaldehyde. The total yield stable at 70% or more, the product purity is 99% or more. The process of the invention clean, low material cost, high purity of the product, it is easy to realize industrial production. (by machine translation)
METHOD FOR PRODUCING 3,3,3-TRIFLUOROPROPIONIC ACID CHLORIDE
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Page/Page column 3; 10-11, (2009/01/24)
There is provided a process for producing 3,3,3-trifluoropropionyl chloride, which is characterized in that 3,3,3-trifluoropropionaldehyde is chlorinated by a chlorinating agent selected from the group consisting of chlorine (Cl2), sulfuryl chloride (SO2Cl2) and organic N-chloro compounds.
Process for the production of chloropyridines substituted by methyl, trichloromethyl or trifluoromethyl groups
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, (2008/06/13)
Chloropyridines of the formula STR1 wherein either R is chlorine and R' is methyl or trifluoromethyl, or R is methyl, trichloromethyl or trifluoromethyl and R' is chlorine, or R and R' are methyl, can be obtained by a novel, simple process by the addition of trichloroacetaldehyde to methacrylonitrile or α-trifluoromethacrylonitrile, 2,2-dichloropropionaldehyde, pentachloropropionaldehyde or 2,2-dichloro-3,3,3-trifluoropropionaldehyde to acrylonitrile, or 2,2-dichloropropionaldehyde to methacrylonitrile, in the presence of a catalyst, in particular copper powder or copper(I) chloride, and cyclizing the open-chain intermediate obtained. The chloropyridines of the formula (I) are known per se and are suitable for the production of different compounds, in particular of insecticides and herbicides.
