EP0338760A2
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EP
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Process for production of aromatic carbonate compound
Assignee: Mitsui Chemicals Inc
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Filing: 1989-04-17
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Granted: —
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Expires: 2009-04-17
Abstract
Abstract Disclosed is a process for producing an aromatic carbonate which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of a catalyst. The catalyst is either SnO and/or a tin compound represented by the following formula wherein X and Y are identical or different and each represents OH, SCN, OR¹, OCOR¹ or a halogen atom, R¹ represents an alkyl or aryl group, X and Y are not alkoxy groups at the same time, and R represents an alkyl or aryl group; or at least one compound of an element selected from the group consisting of Sc, Cr, Mo, W, Mn, Au, Ga, In, Bi, Te and lantanoids. The use of these specific catalysts enables the product to be obtained in high yields and selectivities and makes it easy to purify the product.
Inventors
- 👤 Yoshihisa C/O Mitsui Petrochemical Kiso
- 👤 Yuuichi C/O Mitsui Petrochemical Matsunaga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:49
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/385; C07C49/517; C07C68/00; C07C68/06; C07C69/00; C07C69/96
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A process for producing an aromatic carbonate compound selected from aliphatic-aromatic carbonates, di-aromatic carbonates and mixtures of these, which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of, as a catalyst, SnO and/or a tin compound represented by the following formula wherein X and Y are identical or different and each represents OH, SCN, OR¹, OCOR¹ or a halogen atom, R¹ represents an alkyl or aryl group, X and Y are not alkoxy groups at the same time, and R represents an alkyl or aryl group.
Claim 2
Dependent Claim
94 words
A process for producing an aromatic carbonate compound selected from aliphatic-aromatic carbonates, di-aromatic carbonates and mixtures of these, which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of, as a catalyst, SnO and/or a tin compound represented by the following formula wherein X and Y are identical or different and each represents OH, SCN, OR¹, OCOR¹ or a halogen atom, R¹ represents an alkyl or aryl group, X and Y are not alkoxy groups at the same time, and R represents an alkyl or aryl group.
Claim 3
Dependent Claim
60 words
A process for producing an aromatic carbonate compound selected from aliphatic-aromatic carbonates, di-aromatic carbonates and mixtures of these which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of, as a catalyst, at least one compound of an element selected from Sc, Cr, Mo, W, Mn, Au, Ga, In, Bi, Te and lanthanoids.
Claim 4
Dependent Claim
60 words
A process for producing an aromatic carbonate compound selected from aliphatic-aromatic carbonates, di-aromatic carbonates and mixtures of these which comprises reacting a phenolic compound with a di-aliphatic carbonate or an aliphatic-aromatic carbonate in the presence of, as a catalyst, at least one compound of an element selected from Sc, Cr, Mo, W, Mn, Au, Ga, In, Bi, Te and lanthanoids.
Claim 5
Dependent Claim
21 words
The process of claim 1 or 2 in which the reaction is carried out at a temperature of 150 to 320°C.
Claim 6
Dependent Claim
28 words
The process of claim 1 or 2 in which the mole ratio of the phenolic compound to the di-aliphatic carbonate or aliphatic-aromatic carbonate is from 5:1 to 1:5.
Claim 7
Dependent Claim
29 words
The process of claim 1 or 2 in which the catalyst is used in a concentration of 0.2 mole % to 10⁻³ mole % based on the phenolic compound.
Claim 8
Dependent Claim
14 words
The process of claim 1 or 2 in which the phenolic compound is phenol.
Claim 9
Dependent Claim
15 words
The process of claim 1 or 2 in which the di-aliphatic carbonate is dimethyl carbonate.
Claim 10
Dependent Claim
37 words
A process for producing a di-aromatic carbonate, which comprises heating the aliphatic-aromatic carbonate or a mixture of it with a di-aromatic carbonate obtained by the process of claim 1 or 2 in the presence of a catalyst.
Claim 11
Dependent Claim
15 words
The process of claim 1 or 2 in which the aliphatic-aromatic carbonate is methylphenyl carbonate.
Claim 12
Dependent Claim
27 words
The process of claim 2 in which the catalyst is at least one compound selected from the group consisting of Sc, Mo, Mn, Au, Bi and lanthanoids.
References Cited (Backward Citations)
No citation records indexed.
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