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公开(公告)号：US20210115005A1
公开(公告)日：2021-04-22
申请号：US17047573
申请日：2019-04-30
发明人： Marc CROCKATT , Johan URBANUS
IPC分类号： C07D307/89 , C07C51/087 , C07D209/48 , C07C67/30 , C07C253/30 , C07D307/88
摘要： The invention is directed to a process for the ring-opening of a cycloadduct obtainable from a reaction of a furanic compound and a diene, said process comprising contacting the cycloadduct with an acidic mixture comprising sulfuric acid and an activating agent to obtain a ring-opened product. The present invention is particularly directed a continuous process.
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公开(公告)号：US20200055832A1
公开(公告)日：2020-02-20
申请号：US16487574
申请日：2018-02-28
发明人： Marc CROCKATT , Roel Johannes Martinus BISSELINK , Roman LATSUZBAIA , Cornelis Petrus Marcus ROELANDS , Earl Lawrence Vincent GOETHEER
IPC分类号： C07D307/68 , C25B3/02
摘要： The invention is directed to the to the electrochemical preparation of 2,5- furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) by electrochemical oxidation, comprising a first oxidation step of oxidizing HMF to 5-hydroxymethyl-2-furan-carboxylic acid (HMFCA) in an electrochemical cell, subsequently a first isolation step of isolating HMFCA, followed by a second oxidation step of HMFCA to FDCA.
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公开(公告)号：US20190010111A1
公开(公告)日：2019-01-10
申请号：US16064287
申请日：2016-12-22
IPC分类号： C07C67/31 , C07D307/00 , C07C51/09 , C07C37/50 , C07C309/77 , C07C309/58 , C07C309/42 , C07C309/75
CPC分类号： C07C67/31 , C07C37/50 , C07C51/09 , C07C303/22 , C07C309/32 , C07C309/42 , C07C309/44 , C07C309/58 , C07C309/75 , C07C309/77 , C07D307/00 , C07C69/94 , C07C65/105 , C07C39/16
摘要： The invention relates to a method for preparing a compound comprising two phenyl groups by reacting a bisfuranic compound with a dienophile; and to such compounds.
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公开(公告)号：US20170320843A1
公开(公告)日：2017-11-09
申请号：US15526022
申请日：2015-11-20
发明人： Marc CROCKATT , Jan Harm URBANUS , Johannes Wouterus VAN GROENESTIJN , Martijn Constantijn DE KONING
IPC分类号： C07D307/36
CPC分类号： C07D307/36 , C07D307/08
摘要： The invention relates to obtaining furans from biomass. In particular, the invention relates to obtaining furans from polyols, such as tetrahydroxybutane. In accordance with the invention tetrahydroxybutane is converted to furan in the presence of a catalyst. The tetrahydroxybutane may be dissolved in a solvent such as water.
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公开(公告)号：US20240067593A1
公开(公告)日：2024-02-29
申请号：US17766615
申请日：2020-10-22
发明人： Marc CROCKATT
IPC分类号： C07C51/265 , C07C37/055
CPC分类号： C07C51/265 , C07C37/0555
摘要： The invention is directed to a process for the preparation of an aromatic acid or a phenolic compound, said process comprising reacting a dienophile and a furanic compound comprising an acetal moiety in a Diels-Alders reaction to obtain an aromatic compound comprising said acetal moiety, followed by hydrolysis and oxidation of said acetal moiety into a hydroxide or carboxylate moiety to form the aromatic acid or phenolic compound, wherein said dienophile is selected from the group consisting of alkylenes, acetylenes, acrylates, maleates, fumarates, maleimides, propiolates, acetylene dicarboxylates, and benzynes and wherein said acetal moiety is bound directly to the 2-position of the furanic compound.
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公开(公告)号：US20220363624A1
公开(公告)日：2022-11-17
申请号：US17761808
申请日：2020-10-05
IPC分类号： C07C51/087 , C07C63/15
摘要： A process for the preparation of an aromatic product is disclosed which includes a step b) of contacting one or more intermediate compounds with a further acid to form the aromatic product. The intermediate compounds can be obtained in step a) that includes contacting a 7-oxabicyclo[2.2.1]hept-2-ene core structure with an acidic mixture. The amount of acid in step b) is higher than the amount of acid in step a).
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公开(公告)号：US20220064097A1
公开(公告)日：2022-03-03
申请号：US17414995
申请日：2019-12-20
IPC分类号： C07C51/235 , C25B3/07 , C25B3/23 , C25B11/04
摘要： The invention is directed to a process for the preparation of maleic acid or a derivative thereof. Said process comprising an electrochemical oxidation of a furoic acid compound into maleic acid in an electrolyte solution; and optionally further comprising a step of reacting the maleic acid to the derivative thereof. In an alternative embodiment, said process comprising a first step comprising an electrochemical oxidation in an electrolyte solution of a furanic compound into one or more intermediates; followed by a second step comprising a chemo-catalytic oxidation of said intermediates to provide maleic acid or a derivative thereof.
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公开(公告)号：US20190023678A1
公开(公告)日：2019-01-24
申请号：US16079751
申请日：2017-02-27
发明人： Marc CROCKATT , Jan Harm URBANUS
IPC分类号： C07D307/89 , C07D307/52 , C07C249/16 , C07C249/12 , C07C251/86 , C07C251/48 , C07C51/27 , C07C63/307 , C07C45/51 , C07C47/54 , C07C37/56 , C07C39/04
CPC分类号： C07D307/89 , C07B37/12 , C07C37/56 , C07C39/04 , C07C45/516 , C07C47/54 , C07C51/27 , C07C63/307 , C07C249/12 , C07C249/16 , C07C251/48 , C07C251/86 , C07D307/46 , C07D307/52 , C07C63/06
摘要： Described are methods for preparing phenols, benzene carboxylic acids, esters and anhydrides thereof from furanic compounds by reaction with a dienophile, wherein the furanic compounds are reacted with a hydrazine and/or oxime and then reacted with a dienophile.
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公开(公告)号：US20190002379A1
公开(公告)日：2019-01-03
申请号：US16064871
申请日：2016-12-22
CPC分类号： C07C37/14 , B01J21/04 , B01J21/08 , B01J21/12 , B01J31/2226 , B01J2531/36 , B01J2540/225 , C07C39/06 , C07C67/347 , C07C69/84
摘要： The invention is directed to a method for preparing a phenolic compound comprising reacting a furanic compound with a dienophile in the presence of a catalyst comprising yttrium.
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公开(公告)号：US20170349529A1
公开(公告)日：2017-12-07
申请号：US15544172
申请日：2016-01-18
IPC分类号： C07C67/347 , C07C51/367 , C07C51/09 , C07C231/02 , C07C37/00
CPC分类号： C07C67/347 , C07C37/002 , C07C37/20 , C07C37/50 , C07C37/62 , C07C51/09 , C07C51/367 , C07C67/08 , C07C67/31 , C07C67/317 , C07C213/02 , C07C231/02 , C07C69/84 , C07C65/03 , C07C39/07 , C07C235/60 , C07C235/46 , C07C69/78 , C07C63/06 , C07C215/76 , C07C39/04 , C07C69/157 , C07C39/11 , C07C39/20 , C07C39/24 , C07C65/10
摘要： The present invention is directed to a method for preparing a final phenolic product from biomass comprising the steps of providing a furanic compound obtainable from biomass; reacting the furanic compound with a dienophile to obtain a phenolic compound; reacting the phenolic compound further to obtain the final phenolic product.
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