METHOD FOR THE SYNTHESIS OF BIORESOURCED ACRYLIC ACID ESTERS
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Abstract
The present invention relates to a method for the synthesis of an acrylic acid ester of formula CH2═CH—COOR, where R is an alkyl radical having between 1 and 18 carbon atoms and optionally where one of the carbon atoms in the alkyl radical may be replaced with a nitrogen atom. In an embodiment of the invention, glycerol is subjected to a dehydration reaction in the presence of an acid catalyst to obtain acrolein. The acrolein formed is transformed by catalytic oxidation into acrylic acid, which is subjected to an esterification reaction by means of an alcohol of the formula ROH in which R has the meaning as above. The invention also relates to bioresourced esters produced according to the method, and to synthesized polymers using the esters of the invention as polymerization monomers or comonomers.
30 Citations
44 Claims
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1-22. -22. (canceled)
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23. A process for synthesizing an acrylic acid ester comprising the steps of:
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a) subjecting glycerol to a dehydration reaction in the presence of an acid catalyst to form acrolein; b) converting the acrolein using catalytic oxidation to form acrylic acid; and c) esterifying the acrylic acid using an alcohol of formula ROH to form an acrylic acid ester of formula I;
CH2═
CH—
COOR, wherein R is an alkyl radical having 1 to 18 carbon atoms wherein optionally one of the carbon atoms in the alkyl radical may be replaced with a nitrogen atom. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A process for synthesizing an acrylic acid ester of formula CH2═
- CH—
COO—
CH2—
CH(C2H5)—
(CH2)3—
CH3 comprising the steps ofa) subjecting glycerol to a dehydration reaction in the presence of an acid catalyst to form acrolein; b) converting the acrolein using catalytic oxidation to form acrylic acid; and c) esterifying the acrylic acid under acid catalysis and using an alcohol of formula CH3—
(CH2)3—
CH(C2H5)—
CH2OH. - View Dependent Claims (35, 36, 37, 38)
- CH—
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39. A process for synthesizing an acrylic acid amino ester of formula CH2═
- CH—
COO—
CH2—
CH2—
N(CH3)2 comprising the steps of;a) subjecting glycerol to a dehydration reaction in the presence of an acid catalyst to form acrolein; b) converting the acrolein by oxidation to form acrylic acid; c) esterifying the acrylic acid using an alcohol of formula R0OH, wherein R0 is selected from —
CH3,—
C2H5, —
C3H7, or —
C4H9, to form an ester; andd) transesterifying the ester formed in step c) using an amino alcohol of formula (CH3)2—
N—
CH2—
CH2OH to form the acrylic acid amino ester. - View Dependent Claims (40, 41, 42, 43, 44)
- CH—
Specification