发明名称 |
A process for the prepration of a dihydroxyamino compound |
摘要 |
Disclosed are a process for the preparation of a dihydroxyamino compound in which water and discoloring ingredients are removed while preventing decomposition of a dihydroxyamino compound by distilling a crude reaction liquid containing an epoxy compound and an amino compound at a specified temperature and pressure, a process for improving a yield of a dihydroxyamino compound having high purity by recirculating an aqueous solution of an amino compound recollected from a crude reaction liquid into a reaction step, and a process in which there are prevented discoloration and a yield decline of a dihydroxyamino compound. |
申请公布号 |
EP1201644(A3) |
申请公布日期 |
2004.01.02 |
申请号 |
EP20020002839 |
申请日期 |
1997.10.22 |
申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD. |
发明人 |
HORIGUCHI, AKIRA;TAKABE, AKIHISA;TAKEMOTO, ETSUO |
分类号 |
C07C213/02;C07C213/04;C07C213/10;C07C215/10 |
主分类号 |
C07C213/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|