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US 2012/0259134 A1Published application
Process for production of zinc toluenesulfonate, zinc toluenesulfonate, and process for production of carbamate
AssigneeMitsui Chemicals, Inc.
InventorsKazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki
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Abstract
A process for producing zinc toluenesulfonate comprising reacting a zinc compound comprising Zn(OH)2 with toluenesulfonic acid and/or a salt thereof in the presence of an alcohol having 1 to 20 carbon atoms in total at a temperature higher than 60° C.
Claims8
A process for producing zinc toluenesulfonate, comprising
- allowing a zinc compound comprising Zn(OH)2, and toluenesulfonic acid and/or a salt thereof to react at a temperature higher than 60° C. in the presence of an alcohol having 1 to 20 total carbon atoms.
Zinc toluenesulfonate produced by
- allowing a zinc compound comprising Zn(OH)2, and toluenesulfonic acid and/or a salt thereof to react at a temperature higher than 60° C. in the presence of an alcohol having 1 to 20 total carbon atoms.
The zinc toluenesulfonate comprising alcohol in a proportion of not less than 5 ppm to a total amount of zerohydrate to hexahydrate of zinc toluenesulfonate.
A process for producing carbamates, comprising:
- allowing aromatic diamine, urea and/or N-unsubstituted carbamate, and alcohol to react in the presence of a catalyst comprising a zinc toluenesulfonate produced by allowing a zinc compound comprising Zn(OH)2, and toluenesulfonic acid and/or a salt thereof to react at a temperature higher than 60° C. in the presence of an alcohol having 1 to 20 total carbon atoms.
A process for producing carbamates, comprising:
- allowing aromatic diamine, urea and/or N-unsubstituted carbamate, and alcohol to react in the presence of a catalyst comprising the zinc toluenesulfonate comprising an alcohol in a proportion of not less than 5 ppm to a total amount of zerohydrate to hexahydrate of zinc toluenesulfonate.
Dependencies are inferred from the claim text.