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US 4,217,298 AGranted
Process for preparing organic carbonates
AssigneeTokuyama Soda Kabushiki Kaisha
InventorsKazuo Shikata, Toshiaki Shigemune
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Abstract
A process for producing an organic carbonate, which comprises reacting an alkali metal carbonate, carbon dioxide gas, an alcohol and an organic halide in the presence of a catalyst.
Claims12
A process for producing an organic carbonate, which comprises reacting:
- A. an alkali metal carbonate or bicarbonate;
- B. carbon dioxide gas;
- C. an alcohol having an alcoholic hydroxyl group selected from the group consisting of
- (i) an alcohol of the following formula
- R--OH
- wherein R represents a moiety selected from the group consisting of C.sub.1 -C.sub.12 saturated alkyl or C.sub.2 -C.sub.12 alkenyl groups, said groups being substituted by at least one member selected from the group consisting of hydroxy and alkoxy of 1 to 10 carbon atoms, and C.sub.7 -C.sub.11 aralkyl groups substituted by at least one member selected from the group consisting of a hydroxy and alkoxy with 1 to 4 carbon atoms;
- (ii) a polyalkylene glycol having an average molecular weight of about 100 to 1,000;
- and
- (iii) diethylene glycol ethylether, and
- D. an organic halide of the formula ##STR15## wherein R.sup.2, R.sup.3 and R.sup.4, independently from each other, represent a moiety selected from the group consisting of a hydrogen atom;
- C.sub.1 -C.sub.11 saturated alkyl groups or C.sub.2 -C.sub.12 alkenyl groups unsubstituted or substituted by at least one member selected from the group consisting of alkoxy groups with 1 to 4 carbon atoms and halogen atoms;
- a phenyl group unsubstituted or substituted by at least one member selected from the group consisting of alkyl groups with 1 to 4 carbon atoms, a vinyl group, a phenyl group, alkoxy groups with 1 to 4 carbon atoms, and halogen atoms;
- and C.sub.7 -C.sub.11 aralkyl groups unsubstituted or substituted by at least one member selected from the group consisting of a hydrogen atom, alkoxy groups with 1 to 4 carbon atoms and halogen atoms;
- and X represents a halogen atom,
- in the presence of a catalyst selected from the group consisting of tertiary amines, quaternary ammonium salts, phosphines and quaternary phosphorous salts,
- and the reaction is performed in an atmosphere of carbon dioxide gas.
13 more elements
A process for producing an organic carbonate, which comprises reacting:
- A. an alkali metal carbonate or bicarbonate;
- B. carbon dioxide gas;
- C. an alcohol having an alcoholic hydroxyl group selected from the group consisting of
- (i) an alcohol of the following formula
- R--OH
- wherein R represents a moiety selected from the group consisting of C.sub.1 -C.sub.12 saturated alkyl or C.sub.2 -C.sub.12 alkenyl groups, said groups being substituted by at least one member selected from the group consisting of hydroxy and alkoxy of 1 to 10 carbon atoms, and C.sub.7 -C.sub.11 aralkyl groups substituted by at least one member selected from the group consisting of a hydroxy and alkoxy with 1 to 4 carbon atoms;
- (ii) a polyalkylene glycol having an average molecular weight of about 100 to 1,000;
- and
- (iii) diethylene glycol ethylether, and
- D. An organic halide of the formula ##STR17## wherein R.sup.2, R.sup.3 and R.sup.4, independently from each other, represent a moiety selected from the group consisting of a hydrogen atom;
- C.sub.1 -C.sub.11 saturated alkyl groups or C.sub.2 -C.sub.12 alkenyl groups unsubstituted or substituted by at least one member selected from the group consisting of alkoxy groups with 1 to 4 carbon atoms and halogen atoms;
- a phenyl group unsubstituted or substituted by at least one member selected from the group consisting of alkyl groups with 1 to 4 carbon atoms, a vinyl group, a phenyl group, alkoxy groups with 1 to 4 carbon atoms, and halogen atoms;
- and C.sub.7 -C.sub.11 aralkyl groups unsubstituted or substituted by at least one member selected from the group consisting of a hydrogen atom, alkoxy groups with 1 to 4 carbon atoms and halogen atoms, and X represents a halogen atom,
- in the presence of a catalyst which is ##STR18## wherein R.sup.6, R.sup.7, R.sup.8 and R.sup.9, independently from each other, represent a moiety selected from the group consisting of saturated or unsaturated alkyl groups having 1 to 6 carbon atoms, cycloalkyl groups having 3 to 7 carbon atoms, aromatic hydrocarbon groups having 7 to 11 carbon atoms and aralkyl groups having 7 to 12 carbon atoms, R.sup.10 represents a moiety selected from the same groups as given above for R.sup.6, R.sup.7, R.sup.8 and R.sup.9, and a hydrogen atom.
11 more elements
Dependencies are inferred from the claim text.