Method for producing alpha-acyloxycarboxylic acid ester
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsAtsushi Okamoto, Kyoko Hiraoka
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Abstract
A method for producing an α-acyloxycarboxylic acid ester of Formula (1) is described. The method involves reacting an α-hydroxycarboxylic acid ester compound with an acylating agent in the presence of a catalyst comprising an iron halide compound. R1 represents a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, or a tert-butyl group, R2 and R3 each independently represent a methyl group or an ethyl group, and R4 represents a linear, branched, or cyclic alkyl group having from 1 to 6 carbon atoms.
Claims20
A method for producing an α-acyloxycarboxylic acid ester compound of Formula (1), the method comprising:
- reacting an α-hydroxycarboxylic acid ester compound of Formula (2) with an acylating agent of Formula (3) in the presence of a catalyst comprising an iron halide compound,
- where R1 is a hydrogen atom, a methyl group, an ethyl group, a n-propyl group, an isopropyl group, or a tert-butyl group,
- R2 and R3 are each independently a methyl group or an ethyl group,
- R4 is a linear, branched, or cyclic alkyl group having from 1 to 6 carbon atoms,
- Z is chlorine, bromine, or an acyloxy group represented by R1C(═O)O—,
- wherein a molar ratio of iron atoms in the iron halide compound to the α-hydroxycarboxylic acid ester compound is from 50×10−6 to 0.7×10−2.
Dependencies are inferred from the claim text.