Method of selective esterification

Details Method of selective esterification Method of selective esterification

2008-05-06

2008-05-06

Oh, Taylor Victor (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

10920514

ABSTRACT:
A method of preparing a compound of formula Iwherein R is a hydrocarbon and n is an integer from 1 to 5, including the steps of: contacting a compound of formula IIwith a compound selected from the group consisting of amines, and carbonates, bicarbonates, and hydroxides of alkali metals, and combinations thereof, in a solvent to produce a salt of a compound of formula II; treating the salt of the compound of formula II in a polar, aprotic solvent with an organic halide having a formula R—X, wherein X is selected from chlorine, bromine, iodine, and combinations thereof, to produce an ester of formula I; isolating a reaction product including the ester of formula I from the solvent by precipitation or solvent extraction; and purifying the compound of formula I, is disclosed.

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