Invention Application
- Patent Title: Method for the production of 2-keto-l-gulonic acid esters
- Patent Title (中): 2-酮-L-古洛糖酸酯的制备方法
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Application No.: US10582911Application Date: 2004-12-10
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Publication No.: US20070123717A1Publication Date: 2007-05-31
- Inventor: Thomas Domschke , Martin Merger , Frank Haese , Peter Resch , Tillmann Faust
- Applicant: Thomas Domschke , Martin Merger , Frank Haese , Peter Resch , Tillmann Faust
- Applicant Address: DE Ludwigshafen D-67056
- Assignee: Basf Aktiengesellschaft
- Current Assignee: Basf Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen D-67056
- Priority: DE10359023.4 20031215
- International Application: PCT/EP04/14069 WO 20041210
- Main IPC: C07D307/62
- IPC: C07D307/62
Abstract:
A method for the production of C1-C10-alkyl 2-keto-L-gulonates by esterification of 2-keto-L-gulonic acid anhydrate with an anhydrous C1-C10-alkyl alcohol in the presence of an acidic homogeneous catalyst in a reactor cascade comprising at least two reactors, one of these reactors being a tubular reactor, without the water forming in the esterification being removed from the reaction space.
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