Method for synthesis of lactic acid and its derivatives and catalyst for preparing same
US-2015329458-A1 · Nov 19, 2015 · US
US2016289160A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016289160-A1 |
| Application number | US-201414442177-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 14, 2014 |
| Priority date | Mar 22, 2013 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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Provided is a low-tint (meth) acrylate aryl ester. This production method for (meth) acrylate aryl ester causes a specific hydroxyl group-containing aromatic compound and a (meth) acrylate anhydride to react, in the presence of a hindered phenol and a specific phosphite, and produces a (meth) acrylate aryl ester.
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1 . A method for producing aryl (meth)acrylate represented by the following formula [3] wherein R 3 represents a hydrogen atom or a methyl group, the method comprising reacting an aromatic compound containing a hydroxy group represented by the following formula [1] with (meth)acrylic acid anhydride wherein: ring Z represents an aromatic hydrocarbon; L represents a divalent linking group; R 1 independently represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, a halogenated alkyl group, an alkoxy group, an aryloxy group, a trialkylsilyl group, a cyano group, a nitro group, a dialkylamino group, a sulfonic acid group, or a halogen atom; n represents an integer of 0 or 1; and m represents an integer of 0 or higher, such that when m is 2 or higher, R 1 may be the same or different from each other, in the presence of hindered phenol and phosphite represented by the following formula [2] P—(OR 2 ) 3 [2] wherein R 2 independently represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, or a halogenated alkyl group, which may have a substituent group or a hetero bond. 2 . The method according to claim 1 , wherein: the reaction is performed in the presence of a catalyst; and a ratio (%) of gas chromatography (GC) area value of the aromatic compound containing a hydroxy group to that of the aryl (meth)acrylate (aromatic compound containing a hydroxy group/aryl (meth)acrylate×100) is 13% or less after the reaction for 1 hour. 3 . The method according to claim 2 , wherein the catalyst is at least one of a metal oxide and a carbonate salt. 4 . The method according to claim 2 , wherein the catalyst is a metal oxide, the reaction temperature is 80° C., and the metal oxide is present at 0.006 equivalent or more relative to the aromatic compound containing a hydroxy group such that a ratio (%) of gas chromatography (GC) area value of the aromatic compound containing a hydroxy group to that of the aryl (meth)acrylate (aromatic compound containing a hydroxy group/aryl (meth)acrylate×100) is 13% or less after the reaction for 1 hour. 5 . A method for producing an aryl (meth)acrylate represented by the following formula [3] wherein R 3 represents a hydrogen atom or a methyl group, the method comprising reacting an aromatic compound containing a hydroxy group represented by the following formula [1] with (meth)acrylic acid anhydride in the presence of a catalyst, to form the aryl (meth)acrylate, wherein: ring Z represents an aromatic hydrocarbon; L represents a divalent linking group; R 1 represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, a halogenated alkyl group, an alkoxy group, an aryloxy group, a trialkylsilyl group, a cyano group, a nitro group, a dialkylamino group, a sulfonic acid group, or a halogen atom; n represents an integer of 0 or 1; and m represents an integer of 0 or higher, such that when m is 2 or higher, R 1 may be the same or different from each other, and wherein a ratio (%) of gas chromatography (GC) area value of the aromatic compound containing a hydroxy group to that of the aryl (meth)acrylate (aromatic compound containing a hydroxy group/aryl (meth)acrylate×100) is 13% or less after the reaction for 1 hour. 6 . The method according to claim 5 , wherein the catalyst is at least one of a metal oxide and a carbonate salt. 7 . The method according to claim 5 , wherein the catalyst is a metal oxide, the reaction temperature is 80° C., and the metal oxide is present at 0.006 equivalent or more relative to the aromatic compound containing a hydroxy group such that the ratio (%) of gas chromatography (GC) area value of the aromatic compound containing a hydroxy group to that of the aryl (meth)acrylate (aromatic compound containing a hydroxy group/aryl (meth)acrylate×100) is 13% or less after the reaction for 1 hour. 8 . An aryl (meth)acrylate composition, comprising a hindered phenol and a phosphite represented by the following formula [2] P—(OR 2 ) 3 [2] wherein: R 2 independently represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, or a halogenated alkyl group, which may have a substituent group or a hetero bond; each at 0.0002 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of the aryl (meth)acrylate represented by the following formula [3] wherein: ring Z represents an aromatic hydrocarbon; L represents a divalent linking group; R 1 represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, a halogenated alkyl group, an alkoxy group, an aryloxy group, a trialkylsilyl group, a cyano group, a nitro group, a dialkylamino group, a sulfonic acid group, or a halogen atoms; n represents an integer of 0 or 1; m represents an integer of 0 or higher, such that when m is 2 or higher, R 1 may be the same or different from each other; and R 3 represents a hydrogen atom or a methyl group. 9 . (canceled) 10 . A method for preserving an aryl (meth)acrylate, the method comprising contacting the aryl (meth)acrylate with a hindered phenol and a phosphite represented by the following formula [2], relative to 100 parts by mass of the aryl (meth)acrylate represented by the following formula [3] wherein: ring Z represents an aromatic hydrocarbon; L represents a divalent linking group; R 1 represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group, an alkylcarbonyl group, an alkenylcarbonyl group, an arylcarbonyl group, a halogenated alkyl group, an alkoxy group, an aryloxy group, a trialkylsilyl group, a cyano group, a nitro group, a dialkylamino group, a sulfonic acid group, or a halogen atom; n represents an integer of 0 or 1; m represents an integer of 0 or higher, such that when m is 2 or higher, R 1 may be the same or different from each other; and R 3 represents a hydrogen atom or a methyl group, P—(OR 2 ) 3 [2] wherein: R 2 independently represents a linear or branched alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, a carboxyl group, an alkoxycarbonyl group,
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