公开(公告)号：US20180194708A1

公开(公告)日：2018-07-12

申请号：US15737395

申请日：2016-06-20

Applicant: HALDOR TOPSØE A/S

Inventor： Esben TAARNING ,  Irantzu SADABA ZUBIRI ,  Sebastian MEIER

IPC: C07C59/42 ,  C07C51/16 ,  C07C67/39 ,  C07C69/732 ,  B01J29/70

CPC classification number: C07C59/42 ,  B01J29/7049 ,  C07C51/16 ,  C07C67/39 ,  C07C69/732 ,  C07C2529/70

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%.

公开(公告)号：US20190248728A1

公开(公告)日：2019-08-15

申请号：US16394009

申请日：2019-04-25

Applicant: HALDOR TOPSØE A/S

Inventor： Esben TAARNING ,  lrantzu SADABA ZUBIRI ,  Sebastian MEIER

IPC: C07C59/42 ,  C07C51/16 ,  C07C69/732 ,  C07C67/39 ,  B01J29/70

CPC classification number: C07C59/42 ,  B01J29/7049 ,  C07C51/16 ,  C07C67/39 ,  C07C69/732 ,  C07C2529/70

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.