ClassID:

94952

C07D305/12 - CPC Classification

Classification description:

Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having one or more double bonds between ring members or between ring members and non-ring members Beta-lactones

Recent Application in this class:
#1
20260055071
2026-02-26

PROCESS FOR PREPARING BETA-LACTONES

#2
20250376430
2025-12-11

DIFLUOROALDEHYDE, EPOXY, AND DERIVATIVE THEREOF

#3
20250010278
2025-01-09

STERICALLY MODIFIED SCHIFF BASE LIGANDS FOR ENHANCED CATALYTIC CARBONYLATION ACTIVITY

#4
20240391888
2024-11-28

METHODS OF CARBONYLATING 2,2,3-TRIALKYLOXIRANES AND PRODUCTS THEREOF

#5
20240293318
2024-09-05

CLEAVABLE LINKER-CONTAINING IONIZABLE LIPIDS AND LIPID CARRIERS FOR THERAPEUTIC COMPOSITIONS

#6
20240228451
2024-07-11

METHODS OF SYNTHESIZING LIPSTATIN DERIVATIVES

#7
20240166615
2024-05-23

IMPROVED METHOD OF CARBONYLATING AN EPOXIDE

#8
20220380330
2022-12-01

Process for Producing Substituted Lactones

#9
20220306595
2022-09-29

Ligand-enabled β-C(sp)-H lactonization for β-C—H functionalizations

#10
20220204465
2022-06-30

PROCESS FOR THE CARBONYLATION OF EPOXIDES

#11
20220204447
2022-06-30

Chiral-substituted poly-N-vinylpyrrolidinones and complexes with bimetallic nanoclusters and uses thereof in asymmetric oxidation reactions

#12
20220169625
2022-06-02

Process and system to make olefin epoxides

#13
20220089556
2022-03-24

Membrane separation system, and uses thereof

#14
20210403446
2021-12-30

Integrated methods for chemical synthesis

#15
20210403445
2021-12-30

SYSTEMS AND METHODS FOR REGIOSELECTIVE CARBONYLATION OF 2,2-DISUBSTITUTED EPOXIDES

#16
20210395175
2021-12-23

HYDROXYL COMPOUNDS AND COMPOSITIONS FOR CHOLESTEROL MANAGEMENT AND RELATED USES

#17
20210363119
2021-11-25

Proteasome inhibitors

#18
20210245144
2021-08-12

Transition metal-based heterogeneous carbonylation reaction catalyst and method for preparing lactone or succinic anhydride using catalyst

#19
20210139402
2021-05-13

Acrylic acid, and methods of producing thereof

#20
20210024479
2021-01-28

Systems and methods for regioselective carbonylation of 2,2-disubstituted epoxides for the production of alpha,alpha-disubstituted beta-lactones

#21
20200391192
2020-12-17

Transition metal-based heterogeneous carbonylation reaction catalyst and method for preparing lactone or succinic anhydride using catalyst

#22
20200331878
2020-10-22

Continuous carbonylation processes

#23
20200331877
2020-10-22

Catalyst recycle methods

#24
20200331876
2020-10-22

Isocyanates, derivatives, and processes for producing the same

#25
20200325093
2020-10-15

ACRYLIC ACID, AND METHODS OF PRODUCING THEREOF

#26
20200298199
2020-09-24

Flexible chemical production method

#27
20200189999
2020-06-18

CYCLOALKYL-HYDROXYL COMPOUNDS AND COMPOSITIONS FOR CHOLESTEROL MANAGEMENT AND RELATED USES

#28
20200172396
2020-06-04

Integrated methods for chemical synthesis

#29
20200164353
2020-05-28

Compositions and methods for selective carbonylation of heterocyclic compounds

#30
20190345125
2019-11-14

Continuous carbonylation processes

#31
20190315702
2019-10-17

Integrated methods for chemical synthesis

#32
20190263742
2019-08-29

Hydroxyl compounds and compositions for cholesterol management and related uses

#33
20190255512
2019-08-22

Absorbent polymers, and methods and systems of producing thereof and uses thereof

#34
20190255488
2019-08-22

Nanofiltration membranes and methods of use

#35
20190047972
2019-02-14

Processes for producing beta-lactone and beta-lactone derivatives with heterogenous catalysts

#36
20190002400
2019-01-03

Acrylonitrile derivatives from epoxide and carbon monoxide reagents

#37
20180339972
2018-11-29

Lactone-based probes and methods of use thereof

#38
20180305289
2018-10-25

Systems and processes for thermolysis of polylactones to produce organic acids

#39
20180134724
2018-05-17

Methods and intermediates for the preparation of omacetaxine and cephalotaxine derivatives thereof

#40
20180030015
2018-02-01

Continuous carbonylation processes

#41
20180030014
2018-02-01

INTEGRATED METHODS FOR CHEMICAL SYNTHESIS

#42
20180029005
2018-02-01

FLEXIBLE CHEMICAL PRODUCTION PLATFORM

#43
20170349516
2017-12-07

Hydroxyl compounds and compositions for cholesterol management and related uses

#44
20170313669
2017-11-02

LACTONE COMPOUNDS AND METHODS OF MAKING AND USING SAME

#45
20170247309
2017-08-31

Process for production of acrylates from epoxides

#46
20170145126
2017-05-25

ACRYLIC ACID PRODUCTION METHODS

#47
20170107103
2017-04-20

Integrated methods for chemical synthesis

#48
20170096407
2017-04-06

Catalyst recycle methods

#49
20170073286
2017-03-16

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management and related uses

#50
20170021343
2017-01-26

Catalysts and related processes for producing optically pure beta-lactones from aldehydes and compositions produced thereby

#51
20160288057
2016-10-06

Nanofiltration membranes and methods of use

#52
20160272603
2016-09-22

Trail enhancers for the selective killing of cancer cells

#53
20160221977
2016-08-04

ANTIBACTERIAL BETA-LACTONES, AND METHODS OF IDENTIFICATION, MANUFACTURE AND USE

#54
20160102040
2016-04-14

Process for beta-lactone production

#55
20160053438
2016-02-25

Method of making a paper and paperboard and the paper and paperboard thereof

#56
20160052901
2016-02-25

Eight diasteromers of vittatalactone and methods of making, and methods of attracting acalymma vittatum

#57
20160031776
2016-02-04

Preparation of pentanol with ethanol derived from fermentation

#58
20150344389
2015-12-03

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management and related uses

#59
20150344388
2015-12-03

Hydroxyl compounds and compositions for cholesterol management and related uses

#60
20150315163
2015-11-05

Device and method for continuously preparing high-purity AKD without solvent

#61
20150299083
2015-10-22

PROCESS FOR PRODUCTION OF ACRYLATES FROM EPOXIDES

#62
20150246862
2015-09-03

Preparation of pentanol with ethanol derived from fermentation

#63
20150141693
2015-05-21

PROCESS FOR ACRYLATE PRODUCTION

#64
20150126775
2015-05-07

Process for the production of carnitine from β-lactones

#65
20150099800
2015-04-09

NOVEL LIPASE INHIBITORS, REPORTER SUBSTRATES AND USES THEREOF

#66
20150057458
2015-02-26

Process for the production of chemical compounds from carbon dioxide

#67
20150005513
2015-01-01

Process for the production of acid anhydrides from epoxides

#68
20140275575
2014-09-18

Process for beta-lactone production

#69
20140228439
2014-08-14

Ketone compounds and compositions for cholesterol management and related uses

#70
20140174682
2014-06-26

Composition and use of hydrogenated alkyl ketene dimers

#71
20140163094
2014-06-12

Beta-lactones as antibacterial agents

#72
20130316005
2013-11-28

Combination and composition for treating obesity

#73
20130281715
2013-10-24

Process for beta-lactone production

#74
20130281490
2013-10-24

Disubstituted beta-lactones as inhibitors of N-acylethanolamine acid amidase (NAAA)

#75
20130046075
2013-02-21

Process for gamma-butyrolactone production

#76
20130040916
2013-02-14

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management and related uses

#77
20120315681
2012-12-13

Process for producing a monomer component from a genetically modified polyhydroxyalkanoate biomass

#78
20120225908
2012-09-06

Hydroxyl compounds and compositions for cholesterol management and related uses

#79
20120196740
2012-08-02

Catalysts and related processes for producing optically pure beta-lactones from aldehydes and compositions produced thereby

#80
20120172337
2012-07-05

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management and related uses

#81
20120129930
2012-05-24

Ketone compounds and compositions for cholesterol management and related uses

#82
20120123137
2012-05-17

Process for beta-lactone production

#83
20120035141
2012-02-09

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management

#84
20120022288
2012-01-26

PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES

#85
20120022275
2012-01-26

Process for the production of carnitine by cycloaddition

#86
20120022274
2012-01-26

Crystalline Form of Orlistat and a Process Thereof

#87
20110282075
2011-11-17

METHOD FOR PREPARING VITTATALACTONE

#88
20110196027
2011-08-11

Beta-lactones as antibacterial agents

#89
20110178330
2011-07-21

Method for preparing (3S,4S)-4-((R)-2-(benzyloxy)tridecyl)-3-hexyl-2-oxetanone and novel intermediate used therefor

#90
20110178199
2011-07-21

Method for producing organic compound and organic compound obtained by the method

#91
20110046400
2011-02-24

Preparation method of (3S,4S)-3-hexyl-4-((R)-2-hydroxytridecyl)-oxetan-2-one and the product of that method

#92
20110014664
2011-01-20

Fermentation process for higher yield coefficient of lipase-inhibitor with respect to consumed fatty acid

#93
20110003860
2011-01-06

HYDROXYL COMPOUNDS AND COMPOSITIONS FOR CHOLESTEROL MANAGEMENT AND RELATED USES

#94
20100234220
2010-09-16

Oxooxetanes as Fungicidal Agents

#95
20100179335
2010-07-15

Process for the preparation of orlistat

#96
20100137444
2010-06-03

Ketone compounds and compositions for cholesterol management and related uses

#97
20100104979
2010-04-29

Alpha-hydroxyketones

#98
20090287000
2009-11-19

Low pressure carbonylation of heterocycles

#99
20090275756
2009-11-05

2-oxetanone derivative and process for production thereof

#100
20090247489
2009-10-01

Dihydroxyl compounds and compositions for cholesterol management and related uses

#101
20090221811
2009-09-03

PROCESS FOR PREPARING GEMCITABINE AND ASSOCIATED INTERMEDIATES

#102
20090171104
2009-07-02

PROCESS FOR THE PREPARATION OF ORLISTAT

#103
20090124681
2009-05-14

Beta-lactone compounds

#104
20090042922
2009-02-12

Belactosin derivatives as therapeutic agents/biological probes and their synthesis

#105
20080249166
2008-10-09

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management

#106
20080064661
2008-03-13

Dihydroxyl compounds and compositions for cholesterol management and related uses

#107
20070213524
2007-09-13

Low pressure carbonylation of heterocycles

#108
20070191598
2007-08-16

Process for Preparing Gemcitabine and Associated Intermediates

#109
20070179120
2007-08-02

Hydroxyl compounds and compositions for cholesterol management and related uses

#110
20070173579
2007-07-26

Preparation of alkyl ketene dimers

#111
20070161806
2007-07-12

Catalyst for the carbonylation of oxiraines

#112
20070155704
2007-07-05

Ketone compounds and compositions for cholesterol management and related uses

#113
20070149615
2007-06-28

Ketone compounds and compositions for cholesterol management and related uses

#114
20060229281
2006-10-12

Cycloalkyl-hydroxyl compounds and compositions for cholesterol management and related uses

#115
20060100450
2006-05-11

Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase

#116
20060100449
2006-05-11

Integrated two-step process for the production of gamma-methyl-alpha-methylene-gamma-butyrolactone from levulinic acid and hydrogen

#117
20060100448
2006-05-11

Process for the production of Y-methyl-A-methylene-Y-butyrolactone from reaction of levulinic acid and hydrogen in the liquid phase followed by reaction of crude-Y-valerolactone and formaldehyde

#118
20060100447
2006-05-11

Process for the production of y-methyl-a-methylene-y-butyrolactone from reaction of levulinic acid and hydrogen with recycle of unreacted levulinic acid followed by reaction of crude y-valerolactone and formaldehyde, both reactions being carried out in the supercritical or near-critical fluid phase

#119
20060089503
2006-04-27

Processes for producing optically active 2-thiomethyl-3-phenylpropionic acid derivative and for producing intermediate therefor

#120
20050256320
2005-11-17

Catalyst and method for the carbonylation of oxiranes

#121
20050209468
2005-09-22

Method for liquid/liquid extraction of molecular weight fractions of perfluorinated polyethers

#122
20050197386
2005-09-08

Alkyl carbamate-substituted β-lactones, process for their preparation, and pharmaceutical compositions containing them

#123
20050089978
2005-04-28

Fermentation process for lipstatin and method of extracting lipstatin from a fermentation broth

#124
20050043278
2005-02-24

Hydroxyl compounds and compositions for cholesterol management and related uses

#125
20050014977
2005-01-20

Process for the carbonylation of epoxides

#126
15674453
2020-03-17

Processes for producing beta-lactone with heterogenous catalysts