Invention Grant
- Patent Title: Process for preparing 1,4-bishydroxyethylpiperazine
- Patent Title (中): 1,4-双羟乙基哌嗪的制备方法
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Application No.: US13284178Application Date: 2011-10-28
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Publication No.: US08436169B2Publication Date: 2013-05-07
- Inventor: Christof Wilhelm Wigbers , Nina Challand , Johann-Peter Melder , Udo Rheude , Roman Dostalek
- Applicant: Christof Wilhelm Wigbers , Nina Challand , Johann-Peter Melder , Udo Rheude , Roman Dostalek
- Applicant Address: DE
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: C07D241/04
- IPC: C07D241/04
Abstract:
Process for preparing 1,4-bishydroxyethylpiperazine (BHEPIP) of the formula I wherein diethanolamine (DEOA) of the formula II is reacted in the liquid phase in a reactor at a temperature in the range from 130 to 300° C. in the presence of a copper-comprising, chromium-free heterogeneous catalyst.
Public/Granted literature
- US20120108816A1 PROCESS FOR PREPARING 1,4-BISHYDROXYETHYLPIPERAZINE Public/Granted day:2012-05-03
Information query
