C07C303/02 - CPC Classification Index

ClassID:

93284 ⎘

C07C303/02 - CPC Classification

Classification description:

Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof

Sub-classes:

C07C303/04 » by substitution of hydrogen atoms by sulfo or halosulfonyl groups 12
C07C303/14 » by sulfoxidation, i.e. by reaction with sulfur dioxide and oxygen with formation of sulfo or halosulfonyl groups 14
C07C303/16 » by oxidation of thiols, sulfides, hydropolysulfides, or polysulfides with formation of sulfo or halosulfonyl groups 16
C07C303/18 » by reaction of sulfides with compounds having functional groups with formation of sulfo or halosulfonyl groups 20
C07C303/20 » by addition of sulfurous acid or salts thereof to compounds having carbon-to-carbon multiple bonds 20
C07C303/22 » from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; {from sulfonic halides by reactions not involving the formation of halosulfonyl groups} 206

Recent Application in this class:

20250243428

2025-07-31

METHODS FOR PRODUCING ALKYLBENZENES, PARAFFINS, OLEFINS AND OXO ALCOHOLS FROM WASTE PLASTIC FEEDSTOCKS

20240368063

2024-11-07

PREPARATION METHOD, INTERMEDIATE COMPOUNDS, AND SYNTHESIS METHOD FOR A CLASS OF ANTHRACENE-DERIVED TOXINS IN ORGANIC CHEMISTRY

20240351979

2024-10-24

POLYONIUM SALT PHOTOACID GENERATOR FOR ARF LIGHT SOURCE DRY LITHOGRAPHY, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

20240158342

2024-05-16

PURIFICATION OF ALIPHATIC TAURATE AMIDE

20230192603

2023-06-22

Process for producing alkali taurinate

20230192602

2023-06-22

Process for producing taurine

20230044757

2023-02-09

SYSTEM FOR REMOVING IMPURITIES OUT OF TAURINE MOTHER LIQUOR AND TAURINE MOTHER LIQUOR RECOVERY

20220281811

2022-09-08

Method for preparing taurine

20220135519

2022-05-05

Cyclic process for producing taurine from monoethanolamine

#10

20220073455

2022-03-10

Cyclic process for producing taurine from monoethanolamine

#11

20210179551

2021-06-17

PROCESS FOR PRODUCING ALKALI TAURINATE

#12

20210108154

2021-04-15

Methods for producing alkylbenzenes, paraffins, olefins and oxo alcohols from waste plastic feedstocks

#13

20210061758

2021-03-04

Method and system for removing impurities out of taurine mother liquor and taurine mother liquor recovery

#14

20210023218

2021-01-28

Methods for promoting myelination and for treating demyelinating diseases

#15

20200347013

2020-11-05

PROCESS FOR PREPARATION OF ISOSULFAN BLUE

#16

20200339870

2020-10-29

Sulfonated iminodialkanoic acids formed from an iminodialkylnitrile and a sultone and methods for use thereof

#17

20200299231

2020-09-24

HPTS series derivatives and synthesis method therefor

#18

20200283380

2020-09-10

Process For The Production Of Lignin Derived Low Molecular Products

#19

20200181070

2020-06-11

Process for producing taurine

#20

20200095197

2020-03-26

Integrated processing system with continuous acid loop for converting methane to methane-sulfonic acid

#21

20190241838

2019-08-08

METHODS FOR PRODUCING ALKYLBENZENES, PARAFFINS, OLEFINS AND OXO ALCOHOLS FROM WASTE PLASTIC FEEDSTOCKS

#22

20190218177

2019-07-18

Process for the preparation of isosulfan blue

#23

20190211256

2019-07-11

Sulfonated iminodialkanoic acids formed from an iminodialkylnitrile and a sultone and methods for use thereof

#24

20190177451

2019-06-13

Phosphono-phosphate and anionic group containing polymers

#25

20190177269

2019-06-13

Process for the preparation of isosulfan blue

#26

20190169119

2019-06-06

Process for the preparation of isosulfan blue

#27

20190135739

2019-05-09

Process for producing taurine

#28

20190112262

2019-04-18

CYCLIC PROCESS FOR PRODUCING ALKALI TAURINATE

#29

20190062268

2019-02-28

Process for the preparation of isosulfan blue

#30

20180312464

2018-11-01

Process for producing alkali taurinate

#31

20180244609

2018-08-30

Method for producing the 2-acrylamido-2-methylpropane sulfonic acid monomer and polymer comprising said monomer

#32

20180141899

2018-05-24

Process for producing alkali taurinate

#33

20180093946

2018-04-05

Cyclic process for producing taurine

#34

20180079716

2018-03-22

Cyclic process for producing taurine

#35

20180057454

2018-03-01

Process for preparation of isosulfan blue

#36

20180022694

2018-01-25

PROCESS FOR FLUORINATION OF SULPHONYL HALIDE COMPOUNDS

#37

20170247265

2017-08-31

Filter medium, method for producing filter medium, water treatment module, and water treatment device

#38

20170210912

2017-07-27

Hydrophilic oil repellent and production method of same, surface coating material, coating film, resin composition, oil-water separation filter material, and porous body

#39

20170044465

2017-02-16

Methods for producing alkylbenzenes, paraffins, olefins and oxo alcohols from waste plastic feedstocks

#40

20160368866

2016-12-22

Process for fluorination of sulphonyl halide compounds

#41

20160355470

2016-12-08

Cyclic process for producing taurine

#42

20160340301

2016-11-24

Cyclic process for production of taurine from alkali vinyl sulfonate

#43

20160340300

2016-11-24

Process for producing taurine

#44

20160340289

2016-11-24

Processes of preparing estolide compounds that include removing sulfonate residues

#45

20160221939

2016-08-04

Method for preparing oxysulphide and fluorinated derivatives by sulphination

#46

20160137587

2016-05-19

Transition-metal-free N-arylation of tertiary amines using arynes

#47

20150376429

2015-12-31

Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method

#48

20150353484

2015-12-10

Method for preparing methanedisulfonic acid

#49

20150329520

2015-11-19

Conjugates and associated methods of producing them for the prevention or treatment of nicotine addiction

#50

20150299114

2015-10-22

Cyclic process for the production of taurine from alkali isethionate

#51

20150299113

2015-10-22

Process for producing taurine from alkali taurinates

#52

20150284350

2015-10-08

VINYLIDENE DIMER DERIVATIVES

#53

20150233937

2015-08-20

Method of detection of amino acid sequence and/or identification of peptides and proteins, by use of a new derivatization reagent and synthesis of 5-formyl-benzene-1,3-disulphonic acid as derivatization reagent

#54

20150183731

2015-07-02

Cyclic process for the production of taurine from monoethanolamine

#55

20150141519

2015-05-21

Agomelatine sulfuric acid complex, and preparation method and application thereof

#56

20140364355

2014-12-11

Linear alkylbenzenes from natural oils and methods of producing

#57

20140323765

2014-10-30

Process for manufacturing haloaryl compounds from mixtures of isomers of dihalodiarylsulfone

#58

20140296561

2014-10-02

Sulfonium salt-containing polymer, resist composition, patterning process, and sulfonium salt monomer and making method

#59

20140171678

2014-06-19

Fluoroalkanesulfonic acid production method

#60

20130324687

2013-12-05

Compounds, monomers, and polymers containing a carbonate linkage

#61

20130310600

2013-11-21

Process for preparation of isosulfan blue

#62

20130204021

2013-08-08

Polyglycol ether-free sulphosuccinates based on polyglycerol partial esters and use thereof

#63

20120184763

2012-07-19

METHOD FOR PRODUCING PERFLUOROSULFONIC ACID HAVING ETHER STRUCTURE AND DERIVATIVE THEREOF, AND SURFACTANT CONTAINING FLUORINE-CONTAINING ETHER SULFONIC ACID COMPOUND AND DERIVATIVE THEREOF

#64

20120183468

2012-07-19

Water-soluble functionalized fullerenes

#65

20120094890

2012-04-19

Process compositions and production of acyl alkylisethionate compositions

#66

20120078007

2012-03-29

Process for preparation of isosulfan blue

#67

20120029197

2012-02-02

Method for Preparing Sulfur-Containing Compounds

#68

20110257072

2011-10-20

Acylalkylisethionate esters and applications in consumer products

#69

20110207954

2011-08-25

Method for producing alkoxycarbonylfluoroalkanesulfonic acid salt

#70

20110172459

2011-07-14

Manufacturing method for sulfonic acid group-containing ether compound

#71

20110160465

2011-06-30

Production method for sultone derivatives

#72

20100274048

2010-10-28

2-acrylamide-2-methylpropanesulfonic acid and process for producing the same

#73

20100215610

2010-08-26

Process compositions and production of acyl alkylisethionate compositions

#74

20100094044

2010-04-15

PROCESS FOR PREPARATION OF ISOSULFAN BLUE

#75

20090221787

2009-09-03

Production Of Monomer, Oligomer And Polymer Phosphonic Acid Esters And Phosphonic And Sulphonic Acids By A Nucleophile Aromatic Substitution

#76

20090118498

2009-05-07

Ozonolysis reactions in liquid COand CO-expanded solvents

#77

20090023951

2009-01-22

Polyalkylated arylalkyl sulfonic acids and their salts

#78

20090023950

2009-01-22

Polyalkylated arylalkyl sulfonic acids and their salts

#79

20080293963

2008-11-27

Process for preparation of isosulfan blue

#80

20080281127

2008-11-13

PROCESS FOR PREPARATION OF ISOSULFAN BLUE

#81

20080234159

2008-09-25

Acylalkylisethionate esters and applications in consumer products

#82

20080108846

2008-05-08

Process for producing alkoxycarbonylfluoroalkanesulfonates

#83

20070282151

2007-12-06

Manufacture of higher hydrocarbons from methane, via methanesulfonic acid, sulfene, and other pathways

#84

20060155142

2006-07-13

Low pressure process for the preparation of methanedisulfonic acid alkali metal salts

#85

20060111584

2006-05-25

Process for producing fluorinated sulfonyl fluoride

#86

20060100458

2006-05-11

Process for the conversion of methane

#87

20060074247

2006-04-06

N-protected/N-substituted-beta-amino hydroxy sulfonates

#88

20050215456

2005-09-29

Manufacturing method of monoglyceride sulfonate, toilet soap composition using the same, and manufacturing method of toilet soap composition comprising salt

#89