ClassID:

94980

C07D307/48 - CPC Classification

Classification description:

Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms; Radicals substituted by oxygen atoms; Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom Furfural

Recent Application in this class:
#1
20250289795
2025-09-18

METHOD FOR PREPARATION OF COMPOUND POSSESSING 5-PENTYLFURFURAL (5-PF) STRUCTURE AND USE THEREOF

#2
20250188047
2025-06-12

METHOD FOR PREPARING 5-ACETOXYMETHYL FURFURAL (AMF) FROM SUGAR INGREDIENTS AND METHOD FOR PREPARING 2,5-FURANDICARBOXYLIC ACID (FDCA) COMPRISING SAME

#3
20250171411
2025-05-29

SYNTHESIS OF 5-ACETOXYMETHYL FURFURAL IN THE PRESENCE OF RECYCLABLE SALT CATALYSTS

#4
20250066545
2025-02-27

Sulfur-bridged thermoplastic polyesters and thermosets from furfural

#5
20250066314
2025-02-27

PROCESS OF COUPLING ALDEHYDES

#6
20250059148
2025-02-20

METHOD FOR PRODUCING 5-HALOMETHYLFURFURAL AND SYSTEM THEREFOR

#7
20250051297
2025-02-13

METHOD FOR PRODUCING A HIGH-PURITY AQUEOUS 5-HYDROXYMETHYLFURFURAL (5-HMF) SOLUTION

#8
20240376064
2024-11-14

Method for continuously synthesizing 5-hydroxymethylfurfural by using micro-channel reactor

#9
20240228696
2024-07-11

METHODS FOR THE PRODUCTION OF SUCCINIC ACID FROM SUGARS

#10
20240199565
2024-06-20

PROCESS FOR PRODUCING FURFURAL AND CATALYST FOR USE IN SAME

#11
20230348409
2023-11-02

METAL CATALYST AND HYDROGEN GAS FREE APPROACHES FOR SELECTIVE REDUCTION OF ALDEHYDE TO METHYL GROUP OF DIFFERENT SUBSTITUTED FURANS

#12
20230340350
2023-10-26

Apparatus and process for catalyzed steam biofuel production

#13
20220401384
2022-12-22

Synthetic antibacterial compounds and uses thereof

#14
20220259166
2022-08-18

PROCESS FOR THE PRODUCTION OF FURFURAL USING A WATER IMMISCIBLE ORGANIC SOLVENT

#15
20220227725
2022-07-21

Process for the production of furfural

#16
20220194914
2022-06-23

METHODS AND SYSTEMS FOR PRODUCTION OF FURFURAL

#17
20220145238
2022-05-12

Synthesis of furans from sugars via keto intermediates

#18
20210070721
2021-03-11

PROCESS FOR THE PRODUCTION OF FURFURAL USING A WATER IMMISCIBLE ORGANIC SOLVENT

#19
20200360910
2020-11-19

Homogeneous and reusable superacid polymer catalyst useful for the synthesis of 5-hydroxymethylfurfural from glucose

#20
20200324277
2020-10-15

Furan-2,5-dicarboxylic acid purge process

#21
20200299250
2020-09-24

Process for producing 5-hydroxymethylfurfural in the presence of an inorganic dehydration and a chloride source

#22
20200262803
2020-08-20

Process for separating furanic compounds, in particular 5-hydroxymethylfurfural, from dimethoxysulfoxide by liquid-liquid extractions

#23
20200223811
2020-07-16

PROCESS FOR THE PRODUCTION OF FURFURAL USING A WATER IMMISCIBLE ORGANIC SOLVENT

#24
20200140384
2020-05-07

Modulators of hemoglobin

#25
20200047165
2020-02-13

Method for the production of a material of plant origin that is rich in phenolic acids, comprising at least one metal, for carrying out organic synthesis reactions

#26
20200039856
2020-02-06

Treatment of quarry liquid effluent

#27
20200010440
2020-01-09

CONVERSION OF BIOMASS

#28
20190330172
2019-10-31

5-hydroxymethyl-2-furfural production method

#29
20190270716
2019-09-05

Process for the recovery of furfural

#30
20190263767
2019-08-29

Process for the recovery of furfural

#31
20190256484
2019-08-22

Process for the recovery of furfural

#32
20190092740
2019-03-28

Method for producing 5-hydroxymethylfurfural in the presence of a Lewis acid catalyst and/or a heterogeneous base catalyst and a homogeneous organic Brønsted acid catalyst in the presence of at least one aprotic polar solvent

#33
20190084951
2019-03-21

Conversion of biomass

#34
20190083960
2019-03-21

Catalyst for preparing 2,5-furancarboxylic acid and a method for preparing 2,5-furancarboxylic acid using the catalyst

#35
20190062292
2019-02-28

Methods for purifying 5-(halomethyl)furfural

#36
20180319757
2018-11-08

Method for producing furan compound and furfural composition

#37
20180304172
2018-10-25

Purifying aqueous solutions

#38
20180251439
2018-09-06

Process to prepare hydroxymethylfurfural derivatives

#39
20180244604
2018-08-30

Method of producing organic compound

#40
20180243938
2018-08-30

PROCESS FOR THE MANUFACTURE OF WOOD COMPOSITE MATERIALS AS WELL AS WOOD COMPOSITE MATERIALS OBTAINABLE BY THE PROCESS

#41
20180201596
2018-07-19

Furan-2,5-dicarboxylic acid purge process

#42
20180186761
2018-07-05

Process for the preparation of a furfural derivative comprising neutralizing an acid reaction mixture

#43
20180170844
2018-06-21

PROCESS FOR PRODUCTION OF HEXAMETHYLENEDIAMINE FROM CARBOHYDRATE-CONTAINING MATERIALS AND INTERMEDIATES THEREFOR

#44
20180155305
2018-06-07

Catalytic hydrolysis and dehydration of saccharides

#45
20180147568
2018-05-31

Magnetically separable iron-based heterogeneous catalysts for dehydrogenation of alcohols and amines

#46
20180065944
2018-03-08

Methods of producing alkylfurans

#47
20180057897
2018-03-01

Synthesis of furans from sugars via keto intermediates

#48
20180023199
2018-01-25

ELECTROCATALYTIC HYDROGEN EVOLUTION AND BIOMASS UPGRADING

#49
20180009774
2018-01-11

Method for producing furan compound and furfural composition

#50
20170233362
2017-08-17

One-step production of furfural from biomass

#51
20170137397
2017-05-18

Methods for purifying 5-(halomethyl)furfural

#52
20170066736
2017-03-09

Conversion of biomass

#53
20170050943
2017-02-23

METHOD FOR PRODUCING FURFURAL, AND METHOD FOR PRODUCING FURAN

#54
20170050906
2017-02-23

Process for production of hexamethylenediamine from carbohydrate-containing materials and intermediates therefor

#55
20170022233
2017-01-26

Bridged phthalocyanine- and napththalocyanine-metal complex catalysts and methods of using and purifying the same

#56
20170008865
2017-01-12

Process for the catalysed conversion of psicose into 5-hydroxymethylfurfural or an alkyl ether thereof

#57
20170002143
2017-01-05

Methods for producing nylon 7

#58
20160339414
2016-11-24

Process for the preparation of 2, 5-dimethylefuran and furfuryl alcohol over ruthenium supported catalysts

#59
20160332979
2016-11-17

Furan-2,5-dicarboxylic acid purge process

#60
20160332978
2016-11-17

Process for making HMF from sugars with reduced byproduct formation, and improved stability HMF compositions

#61
20160304480
2016-10-20

Method for preparing furan derivatives from biomass

#62
20160289150
2016-10-06

Catalytic biomass conversion methods, catalysts, and methods of making the same

#63
20160207899
2016-07-21

Conversion and purification of biomass

#64
20160193184
2016-07-07

Method for induction of a heat shock protein, anti-stress or regulation of an autonomic nerve

#65
20160167027
2016-06-16

Oxidation catalyst for furfural compounds and applying method thereof

#66
20160068469
2016-03-10

Process for production of hexamethylenediamine from carbohydrate-containing materials and intermediates therefor

#67
20160060141
2016-03-03

Method for treatment of process water

#68
20160009675
2016-01-14

Process for making HMF from sugars with reduced byproduct formation, and improved stability HMF compositions

#69
20160002191
2016-01-07

Methods for purifying 5-(halomethyl)furfural

#70
20160002190
2016-01-07

Solid forms of 5-(halomethyl)furfural and methods for preparing thereof

#71
20150353538
2015-12-10

COMPOUNDS AND THERAPEUTIC USES THEREOF

#72
20150284354
2015-10-08

MICROWAVE ASSISTED SYNTHESIS OF DEHYDRATED SUGAR DERIVATIVES HYDROXYMETHYLFURFURAL, LEVULINIC ACID, ANHYDROSUGAR ALCOHOLS, AND ETHERS THEREOF

#73
20150210618
2015-07-30

Energy efficient method and apparatus for the extraction of biomolecules from dilute aqueous solution

#74
20150203462
2015-07-23

Method for synthesis of an output including diesters of 5-methyl-2-furoic acid

#75
20150203461
2015-07-23

PROCESSES FOR PRODUCING 5-(HYDROXYMETHYL)FURFURAL

#76
20150111943
2015-04-23

Hydroxymethylfurfural derivative

#77
20150087848
2015-03-26

Acid-functionalized polyolefin materials and their use in acid-promoted chemical reactions

#78
20150065698
2015-03-05

Microwave assisted citrus waste biorefinery

#79
20150051413
2015-02-19

Method for preparing 5-acetoxymethylfurfural using alkylammonium acetate

#80
20150031904
2015-01-29

Method for producing 5-hydroxymethyl-2-furfural from maize syrup containing fructose

#81
20150025256
2015-01-22

Purification of 5-Hydroxymethylfurfural (HMF) by Crystallization

#82
20150005516
2015-01-01

Processes for making sugar and/or sugar alcohol dehydration products

#83
20140378691
2014-12-25

Method for selectively oxidizing 5-hydroxymethyl furaldehyde

#84
20140371473
2014-12-18

Process for the preparation of 5-hydroxymethylfurfural (HMF)

#85
20140364634
2014-12-11

Process for carrying out a reaction involving a liquid reaction mixture

#86
20140364567
2014-12-11

Styrene-siloxane triblock copolymers as membranes for selective transport of alcohols and other organic compounds in aqueous mixtures

#87
20140357878
2014-12-04

METHOD OF PRODUCING 5-HYDROXYMETHYLFURFURAL FROM CARBOHYDRATES

#88
20140356280
2014-12-04

Delamination of borosilicate layered zeolite

#89
20140350271
2014-11-27

Process for chemical conversion of cellulose isolated from aromatic spent biomass to hydroxymethyl furfural

#90
20140343323
2014-11-20

Process for production of hexamethylenediamine from carbohydrate-containing materials and intermediates therefor

#91
20140309440
2014-10-16

Method for preparing furfural

#92
20140302982
2014-10-09

Catalytic conversion of carbohydrates into 5-hydroxymethylfurfural

#93
20140275583
2014-09-18

Acid-functionalized nanoparticle catalyst and catalyzed reactions using the same

#94
20140275581
2014-09-18

Method and an arrangement for separating at least one carboxylic acid and furfural from a dilute aqueous mixture thereof

#95
20140256964
2014-09-11

Oxidation process to produce a crude dry carboxylic acid product

#96
20140235881
2014-08-21

Method for producing 5-hydroxymethyl-2-furfural or alkyl ether derivatives thereof using an ion exchange resin in the presence of an organic solvent

#97
20140228579
2014-08-14

METHOD FOR THE CATALYTIC REDUCTION OF ACID CHLORIDES AND IMIDOYL CHLORIDES

#98
20140187802
2014-07-03

Efficient, high-yield conversion of saccharides in a pure or crude form to 5-(chloromethyl)-2-furaldehyde

#99
20140128625
2014-05-08

Method of preparing furfural compounds

#100
20140121389
2014-05-01

Method for producing 5-hydroxymethylfurfural

#101
20140051873
2014-02-20

Methods for furfural production from branched non-fermentable sugars in stillage or syrup

#102
20130310578
2013-11-21

Processes for preparing diacids, dialdehydes and polymers

#103
20130281720
2013-10-24

Method for extracting organic compounds from aqueous mixtures

#104
20130252293
2013-09-26

Process for producing bio-based product from straw hemicellulose and fully utilizing the components thereof

#105
20130232854
2013-09-12

PROCESS FOR SEPARATING FURFURAL FROM A LIQUID AQUEOUS PHASE COMPRISING FURFURAL AND ONE OR MORE ORGANIC ACIDS

#106
20130184495
2013-07-18

Process for production of hexamethylenediamine from carbohydrate-containing materials and intermediates therefor

#107
20130178617
2013-07-11

Catalytic conversion of cellulose to fuels and chemicals using boronic acids

#108
20130172583
2013-07-04

Process for the production of furfural

#109
20130168227
2013-07-04

PROCESS FOR THE PRODUCTION OF FURFURAL

#110
20130150596
2013-06-13

Production of 5 hydroxymethyulfurfural (HMF) from hexose solutions in the presence of steam

#111
20130150595
2013-06-13

Lewis and bronsted-lowry acid-catalyzed production 5-hydroxymethylfurfural (HMF) from glucose

#112
20130123520
2013-05-16

Microwave assisted synthesis of dehydrated sugar derivatives hydroxymethylfurfural, levulinic acid, anhydrosugar alcohols, and ethers thereof

#113
20130109822
2013-05-02

Furan based resin, process for the preparation thereof, and use of the compound

#114
20130085285
2013-04-04

Method for the manufacture of furan compounds for renewable primary products

#115
20130030194
2013-01-31

Metal catalyst composition for producing furfural derivatives from raw materials of lignocellulosic biomass, and method for producing furfural derivatives using the composition

#116
20130029383
2013-01-31

Method of producing hydroxymethyl-furfural

#117
20130023679
2013-01-24

Preparation of furfural compounds, and mixture for preparing the same

#118
20120329786
2012-12-27

COMPOUNDS AND THERAPEUTIC USES THEREOF

#119
20120302772
2012-11-29

Oxidation process to produce a crude and/or purified carboxylic acid product

#120
20120184756
2012-07-19

Production process of furfural from cellulose using as a solvent and catalyst an imidazolium sulphate or chloride in a reaction with simultaneous extraction with dibutyl ether

#121
20120172607
2012-07-05

Method for preparing hydroxymethylfurfural

#122
20120157698
2012-06-21

Decarbonylation process

#123
20120123085
2012-05-17

Processes for preparing diacids, dialdehydes and polymers

#124
20120053355
2012-03-01

Method for producing biofuel using marine algae-derived galactan

#125
20120016141
2012-01-19

Method and apparatus for preparing hydroxymethylfurfural

#126
20110251399
2011-10-13

METHOD FOR PRODUCING ALDEHYDES AND KETONES FROM PRIMARY AND SECONDARY ALCOHOLS

#127
20110213112
2011-09-01

Oxidation of 5-(hydroxymethyl) furfural to 2,5 diformylfuran and subsequent decarbonylation to unsubstituted furan

#128
20110160447
2011-06-30

Method for synthesizing acrolein

#129
20110144359
2011-06-16

Method for producing furfural from lignocellulosic biomass material

#130
20110137051
2011-06-09

Process for recovery of formic acid

#131
20110098490
2011-04-28

Process for preparation of formate salt

#132
20110071306
2011-03-24

Biomass refining by selective chemical reactions

#133
20110021740
2011-01-27

FURAN BASED RESIN, PROCESS FOR THE PREPARATION THEREOF, AND USE OF THE COMPOUND

#134
20100152470
2010-06-17

Hydroxymethyl furfural oxidation methods

#135
20100152469
2010-06-17

Hydroxymethyl furfural oxidation methods

#136
20100130758
2010-05-27

METHOD FOR PRODUCING CARBONYL COMPOUND

#137
20100029786
2010-02-04

Flavor improving agent, and food and drink containing the same

#138
20100004437
2010-01-07

Chemical transformation of lignocellulosic biomass into fuels and chemicals

#139
20090234142
2009-09-17

High-yield conversion of cellulosic biomass into furanic biofuels and value-added products

#140
20090156841
2009-06-18

CONVERSION OF CARBOHYDRATES TO HYDROXYMETHYLFURFURAL (HMF) AND DERIVATIVES

#141
20080103318
2008-05-01

Hydroxymethyl furfural oxidation methods

#142
20070232815
2007-10-04

Method for producing furan-2,5-dicarboxylic acid

#143
20070078273
2007-04-05

Process for preparing 5-methyl-2-furfural

#144
20060004088
2006-01-05

Furan derivatives for preventing and curing osteoporosis and pharmaceutical compositions containing the same

#145
15428288
2017-10-03

Process for making HMF from sugars with reduced byproduct formation, and improved stability HMF compositions