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US 2009/0023945 A1Published application
Synthesis of half esters
AssigneeTexas Tech University
InventorSatomi Niwayama
Life of this patent
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Abstract
A method for hydrolyzing an ester is provided. In accordance with the method, a compound A is provided which has first and second ester moieties. The compound is reacted in a liquid medium with a base having the formula MaXb, such that the first ester moiety is converted to a carboxyl moiety and the second ester moiety remains, wherein the ratio [Xk−]:[A] in the liquid medium is no greater than 1.6, and wherein k>0.
Claims70
A method for hydrolyzing an ester, comprising:
- providing a first compound A having first and second ester moieties;
- and
- reacting the compound with a base having the formula M5Xb to form a second compound B in which the first ester moiety is converted to a carboxyl moiety and the second ester moiety remains;
- wherein A is reacted with the base in a liquid medium in which the ratio [Xk−]:[A] is no greater than 1.6, and wherein k>0.
1 more element
A method for hydrolyzing an ester, comprising:
- providing a compound having first and second ester moieties;
- and
- reacting the compound with a base such that the ratio of the number of molar equivalents of base to the number of molar equivalents of the compound is no greater than 1.6.
A method for hydrolyzing an ester, comprising:
- providing a compound having first and second ester moieties;
- and
- reacting the compound with a base in an aqueous medium comprising greater than 93% water by volume.
A method for hydrolyzing an ester, comprising:
- providing a first compound having first and second ester moieties;
- reacting the compound with a base in an aqueous medium such that the ratio of the number of molar equivalents of base to the number of molar equivalents of the first compound is greater than 3;
- and
- quenching the reaction such that the total reaction time is no greater than 90 minutes.
1 more element
Dependencies are inferred from the claim text.