New 1-methoxy-1-oxoalkan-2-yl ester of salicylic acid, method for producing 1-methoxy-1-oxoalkan-2-yl ester of salicylic acid and applications of 1-methoxy-1-oxoalkan-2-yl ester of salicylic acid

摘要

revealed esters 1 - methoxy - 2 - 1 - oksoalkan - ylowe salicylic acid of the general formula 1 in which r is alkyl of 2 to 4 carbon atoms. the subject solutions is also the way to produce ester 1 - methoxy - 2 - 1 - oksoalkan - ylowego salicylic acid, which is that undergo reaction with 2 - bromoalkanianem methyl salicylic acid in solvent in the presence of potassium carbonate.the product is secreted by firing reaction mixture in ice water and separating the product by filtration or extraction with ester 1 - methoxy - 2 - 1 - oksoalkan - ylowy salicylic acid of the general formula 1 in which r is alkyl of 2 to 4 carbon atoms. as a 2 - methyl bromoalkanian apply 2 - methyl bromobutanian or 2 - methyl bromopentanian or 2 - bromoheksanian methyl.as the solvent is n, n-dimethylformamide or acetone or methyl ethyl ketone. the reaction temperature is in the 50 - 100u00b0c. molar ratio of salicylic acid to methyl 2 - bromoalkanianu00f3w is 1: 1, and the molar ratio of salicylic acid to potassium carbonate is from 1: 0.55 to 1: 1.5.use of esters was also revealed 1 - methoxy - 2 - 1 - oksoalkan - ylowe salicylic acid of the general formula 1 as active substances for the production of plant protection products with fungicydowym and other applicable as uv filters in the production of cosmetics.