6460-86-2Relevant articles and documents
Method for synthesis -2- of 3- methyl ester compound (methyl ethyl ester) of methyl ethyl ester (methyl) ethyl ester
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Paragraph 0066-0069, (2019/12/25)
The invention relates to a synthesis method of 3-methoxy-2-aryl(methyl)acrylate compounds, which comprises the following steps: by using phenylmethyl acetate with or without substituting groups as a raw material, carrying out formylation reaction at -20-100 DEG C for 4-6 hours in a nitrogen atmosphere in the presence of Lewis acid in an aprotic solvent neutralized formylation reagent, dissociating with an organic base, hydrolyzing with hydrochloric acid, and stratifying, wherein the organic layer is an intermediate; carrying out methylation reaction on the intermediate, benzyltriethylammonium chloride, a methylation reagent and an inorganic base at 20-100 DEG C for 1-3 hours; after the reaction finishes, washing with water, desolventizing, and recrystallizing or distilling while depressurizing to obtain the product. The invention has the advantages of fewer processing steps (the methylation reaction can be directly carried out without purifying and separating the intermediate product), favorable selectivity, higher yield and low cost; and the reaction process is easy to control, and is safe and easy to amplify.
Fungicides
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, (2008/06/13)
This invention relates to derivatives of acrylic acid useful as fungicides, to processes for preparing them, to fungicidal compositions containing them, and to methods of combating fungi, especially fungal infections in plants, using them.