公开(公告)号：US20210078945A1

公开(公告)日：2021-03-18

申请号：US16965421

申请日：2019-05-13

Applicant: Haldor Topsøe A/S

Inventor： Amanda Birgitte SØLVHØJ ,  Esben TAARNING

IPC: C07C319/20 ,  C07C319/18

Abstract: The following invention regards a process of demethylating a methyl ester of methionine or its hydroxy analog and producing methane thiol as a side-product. The methionine and its hydroxy analog are suitable as an animal feed additive and as a food additive. The methane thiol may be consumed in a hydrothiolation step such as in a step of preparing the methyl ester of methionine or its hydroxy analog from from methyl vinyl glycolate.

公开(公告)号：US20210347753A1

公开(公告)日：2021-11-11

申请号：US17287138

申请日：2019-11-29

Applicant: HALDOR TOPSØE A/S

Inventor： Amanda Birgitte SØLVHØJ ,  Rik DE CLERCQ ,  Esben TAARNING

IPC: C07D319/12

Abstract: According to the present invention a process is provided for producing glycolide which comprises contacting glycolaldehyde dimer with an oxidizing agent to produce a glycolide product. Preferably, the process is carried out in an aprotic environment, such as in a reaction mixture comprising the glycolaldehyde dimer, the oxidizing agent, the glycolide product and an aprotic solvent.

公开(公告)号：US20200115359A1

公开(公告)日：2020-04-16

申请号：US16706036

申请日：2019-12-06

Applicant: HALDOR TOPSØE A/S

Inventor： Esben TAARNING ,  Amanda Birgitte SØLVHØJ

IPC: C07D321/00 ,  C07C69/732 ,  C07C67/475

Abstract: New adipate-type compounds suitable as an intermediate in organic chemistry, a platform chemical for the production of other chemicals, and as a monomer and a co-monomer useful for the preparation of polymers and co-polymers. Also, a process of preparing the new adipate-type compounds from bio-based raw materials such as sugars.

公开(公告)号：US20190144415A1

公开(公告)日：2019-05-16

申请号：US16096103

申请日：2017-05-04

Applicant: HALDOR TOPSØE A/S

Inventor： Esben TAARNING ,  Amanda Birgitte SØLVHØJ

IPC: C07D321/00 ,  C07C69/732 ,  C07C67/475

CPC classification number: C07D321/00 ,  C07B2200/09 ,  C07C67/475 ,  C07C69/732

Abstract: The present invention regards new adipate-type compounds suitable as an intermediate in organic chemistry, a platform chemical for the production of other chemicals, and as a monomer and co-monomer useful for the preparation of polymers and copolymers. The invention also regards the process of preparing the new adipate-type compounds from bio-based raw materials such as sugars.