| 发明名称 |
Method for producing toluenedicarbamate, method for producing toluenediisocyanate, and toluenedicarbamate |
| 摘要 |
A method for producing toluenedicarbamate includes a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea, and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group:; |
| 申请公布号 |
US8742164(B2) |
申请公布日期 |
2014.06.03 |
| 申请号 |
US201113807979 |
申请日期 |
2011.05.19 |
| 申请人 |
Mitsui Chemicals, Inc. |
发明人 |
Murayama Koichi;Shimokawatoko Yoshiki;Kanno Takashi;Takamatsu Koji;Takeuchi Hiroshi;Sasaki Masaaki;Kotaki Yasushi |
| 分类号 |
C07C261/00 |
主分类号 |
C07C261/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method for producing toluenedicarbamate comprising:
a carbamate production process of producing toluenedicarbamate by reaction between toluenediamine, urea and/or N-unsubstituted carbamic acid ester, and alcohol; and a benzoyleneurea reduction process of reducing a disubstituted benzoyleneurea and a derivative thereof to 10 mol or less relative to 100 mol of toluenedicarbamate, wherein the disubstituted benzoyleneurea is represented by formula (1) below and has a methyl group and an amino group: wherein the disubstituted benzoyleneurea derivative is represented by formula (10) where R represents an alkyl group or an aryl group which may have a substituent.
|
| 地址 |
Tokyo JP |
