ClassID:

93017

C07C253/20 - CPC Classification

Classification description:

Preparation of carboxylic acid nitriles by dehydration of carboxylic acid amides

Recent Application in this class:
#1
20260085035
2026-03-26

METHOD FOR PREPARING HEPTAFLUOROISOBUTYRONITRILE BY GAS-PHASE CATALYSIS

#2
20260055052
2026-02-26

PROCESS FOR PREPARING CYANTRANILIPROLE VIA AMINO-CYANO-BENZENE DERIVATIVE

#3
20240351978
2024-10-24

METHOD FOR MANUFACTURING AROMATIC NITRILE COMPOUND

#4
20230348367
2023-11-02

Method for producing aromatic nitrile compound and method for producing carbonate ester

#5
20230073343
2023-03-09

INTEGRATED METHODS AND SYSTEMS FOR PRODUCING AMIDE AND NITRILE COMPOUNDS

#6
20220089524
2022-03-24

Method for preparing (dimethylaminomethylene) malononitrile using a micro reaction system

#7
20220055996
2022-02-24

Method of preparing malononitrile oxime ether compound and intermediate compound

#8
20220041546
2022-02-10

Integrated methods and systems for producing amide and nitrile compounds

#9
20210261496
2021-08-26

Method for producing aromatic nitrile compound and method for producing carbonate ester

#10
20210078940
2021-03-18

Method for manufacturing aromatic nitrile compound

#11
20210032197
2021-02-04

METHOD FOR PRODUCING NITRILE

#12
20190375721
2019-12-12

Process for the preparation of fluoroalkylnitriles and the corresponding fluoroalkyltetrazoles

#13
20190002293
2019-01-03

Biobased carbon fibers and carbon black and methods of making the same

#14
20180327349
2018-11-15

Processes for the preparation of diastereomerically and enantiomerically enriched oxazolines

#15
20170313650
2017-11-02

Synthetic building blocks for the production of materials for organic electroluminescence devices

#16
20160046563
2016-02-18

Synthetic building blocks for the production of materials for organic electroluminescence devices

#17
20150175532
2015-06-25

Process for preparation of 2,3-dihydroxy benzonitrile

#18
20130324694
2013-12-05

Processes for producing hexamethylenediamine (HMD), adiponitrile (ADN), adipamide (ADM) and derivatives thereof

#19
20130172519
2013-07-04

Processes for producing diaminobutane (DAB), succinic dinitrile (SDN) and succinamide (DAM)

#20
20130144028
2013-06-06

PROCESSES FOR PRODUCING DIAMINOBUTANE (DAB), SUCCINIC DINITRILE (SDN) AND SUCCINAMIDE (DAM)

#21
20120095230
2012-04-19

Process for the preparation of pyrimidine derivatives

#22
20110288324
2011-11-24

Method for manufacturing compounds including nitrile functions

#23
20100312002
2010-12-09

Process for preparing fluoroalkyl nitriles

#24
20100185007
2010-07-22

PROCESS FOR PREPARING FLUOROAMIDE AND FLUORONITRILE

#25
20080242884
2008-10-02

Process for preparing nitriles by elimination reactions

#26
20080167464
2008-07-10

Processes for the preparation of 4-[[4-[[4-(2-cyanoethenyl)-2,6-dimethylphenyl]amino]-2-pyrimidinyl]amino]benzonitrile

#27
20070191407
2007-08-16

Processes for the preparation of 4-[[4-[[4-(2-cyanoethenyl)-2,6-dimethylphenyl]amino]-2-pyrimidinyl]amino]benzonitrile

#28
20070161813
2007-07-12

Process for preparing nitriles and isonitriles by dehydration reactions with propanephosphonic anhydrides

#29
20060167253
2006-07-27

Processes for the preparation of 4-[[4-[[4-(2-cyanoethenyl)-2,6-dimethylphenyl]amino]-2-2pyrimidinyl]amino]benzonitrile

#30
20050182269
2005-08-18

Process for the preparation of 3-cyano-1-naphthoic acid and some analogues thereof