Method for producing ester compound
AssigneesKyushu University, National University Corporation, Showa Denko K.K.
InventorsMakoto TOKUNAGA, Haruno MURAYAMA, Eiji YAMAMOTO, Jooyoung SHIM, Haruki MORI, Nao SHIRAKURA, Shinya TSUKAMOTO, Shohei NISHIZAWA, Kazuhiro KITAGAWA, Hiroshi UCHIDA
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Abstract
What is provided is a production method in which a vinyl acetate is reacted with a primary or secondary alcohol represented by Formula (1) and carbon monoxide to produce a first ester compound represented by Formula (2), and the first ester compound is reacted with an alcohol to produce a lactic acid ester represented by Formula (3) and an acetic acid ester represented by Formula (4).
Claims23
A method for producing an ester compound, comprising:
- a first step of reacting a vinyl acetate with a primary or secondary alcohol represented by General Formula (1) and carbon monoxide in a presence of a first catalyst to produce a first ester compound represented by General Formula (2);
- and
- a second step of reacting the first ester compound with an alcohol in a presence of a second catalyst to produce a lactic acid ester represented by General Formula (3) and an acetic acid ester represented by General Formula (4),
- (in Formulae (1) to (4), le is a hydrocarbon group which has 1 to 10 carbon atoms and may have an alicyclic ring or an aromatic ring in part or in whole, R1's in Formula (1) and Formula (2) are the same, and R1's in Formula (3) and Formula (4) are the same).
A method for producing an ester compound, comprising:
- a first step of reacting a vinyl acetate with a primary or secondary alcohol represented by General Formula (1) and carbon monoxide in a presence of a first catalyst to produce a first ester compound represented by General Formula (2),
- wherein the first catalyst includes a compound having at least one element selected from Periodic Table Group 10 elements, and an organic phosphine ligand represented by General Formula (5),
- (in Formulae (1) and (2), R1 is a hydrocarbon group which has 1 to 10 carbon atoms and may have an alicyclic ring or an aromatic ring in part or in whole, and R1's in Formula (1) and Formula (2) are the same)
- (in Formula (5), R3 and R4 are alkyl groups having 1 to 6 carbon atoms, cycloalkyl groups having 6 to 9 carbon atoms, or aryl groups having 6 to 9 carbon atoms, R3 and R4 may be the same or different from each other, R5 to R9 are hydrogen atoms, alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, or dialkylamino groups having 2 to 8 carbon atoms, and R5 to R9 may all be the same or may be partially or completely different from each other).
Dependencies are inferred from the claim text.