FIELD: chemistry.
SUBSTANCE: invention relates to the field of organic chemistry, in particular to a method of obtaining alkylethers of 1- and 2-naphthalenecarboxylic acids, which are used in the synthesis of herbicides, plant growth hormones, dyes, photomaterials and polymers. The method of obtaining compounds of formula (1a-b) or (2a-b) in which R=CH3, C2H5, n-C3H7, consists in the fact that naphthalene is subjected to interaction with CCl4 and alcohol (methanol, ethanol, n-propanol) in the presence of metallic iron, activated HCl, and acetylacetone with the molar ratio of [Fe0(met.)]:[acetylacetone]:[naphthalene]:[CCl4]:[alcohol]=5-50:5:100:100-1000:100-1000, at a temperature of 130°C for 4-12 h in the argon atmosphere.
EFFECT: total output of alkyl ethers of 1- and 2-naphthalenecarboxylic acids reaches 75%.
1 tbl, 21 ex
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Authors
Dates
2014-12-27—Published
2012-07-31—Filed