Invention Grant
- Patent Title: Preparation of 2,5,6-trihydroxy-3-hexenoic acid and 2,5-dihydroxy-3-pentenoic acid and esters thereof from C6 and C5 sugars
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Application No.: US16394009Application Date: 2019-04-25
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Publication No.: US11040934B2Publication Date: 2021-06-22
- Inventor: Esben Taarning , Irantzu Sadaba Zubiri , Sebastian Meier
- Applicant: HALDOR TOPSØE A/S
- Applicant Address: DK Kgs. Lyngby
- Assignee: HALDOR TOPSØE A/S
- Current Assignee: HALDOR TOPSØE A/S
- Current Assignee Address: DK Kgs. Lyngby
- Agency: Buchanan Ingersoll & Rooney P.C.
- Priority: EP15172679 20150618,DKPA201500756 20151127,DKPA201600089 20160212,DKPA201600240 20160425
- Main IPC: C07C59/42
- IPC: C07C59/42 ; C07C67/39 ; C07C51/16 ; B01J29/70 ; C07C69/732
Abstract:
Preparation of 2,5,6-trihydroxy-3-hexenoic acid and 2,5-dihydroxy-3-pentenoic acid and esters thereof from C6 and C5 sugars in the presence of a Lewis Acid material, wherein the yield of the 2,5,6-trihydroxy-3-hexenoic acid or 2,5-dihydroxy-3-pentenoic acid or esters thereof exceeds 15%. The process including the steps of contacting a saccharide composition including one or more C6 and/or C5 saccharide units with a Lewis Acid material; and recovering 2,5,6-trihydroxy-3-hexenoic acid and/or 2,5-dihydroxy-3-pentenoic acid or the esters thereof.
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