ClassID:

93191

C07C273/1809 - CPC Classification

Classification description:

Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety

Sub-classes:
Recent Application in this class:
#1
20260132267
2026-05-14

METHOD FOR SELF-CATALYTIC DIRECTIONAL DEGRADATION OF POLYURETHANE MATERIAL, POLYOL PREPARED THEREOF AND POLYURETHANE MATERIAL

#2
20250179011
2025-06-05

IMPROVED METHOD OF SYNTHESIS AND PURIFICATION OF CITRULLINE

#3
20240246899
2024-07-25

PROCESSES FOR THE PREPARATION OF (S)-TERT-BUTYL 4,5-DIAMINO-5-OXOPENTANOATE

#4
20240018099
2024-01-18

SYNTHESIS OF PROSTATE SPECIFIC MEMBRANE ANTIGEN (PSMA) LIGANDS

#5
20230234914
2023-07-27

Processes for the preparation of ()-tert-butyl 4,5-diamino-5-oxopentanoate

#6
20230068165
2023-03-02

PHOSPHINE-MEDIATED AMINE-AZIDE COUPLING IN IONIC LIQUID FOR BIOCONJUGATION REACTIONS

#7
20220227702
2022-07-21

Method of synthesis and purification of citrulline

#8
20220162160
2022-05-26

Solid drug form of N-(2,6-bis(1-methylethyl)phenyl)-N′-((1-(4-(dimethylamino)phenyl)cyclopentyl)methyl)urea hydrochloride and compositions, methods and kits related thereto

#9
20220081383
2022-03-17

Materials exhibiting biomimetic carbon fixation and self-repair

#10
20220009900
2022-01-13

N-TRIFLUORMETHYLCARBONYL COMPOUNDS AND METHODS FOR THEIR SYNTHESIS

#11
20220002237
2022-01-06

Method for converting monoisocyanates to ureas

#12
20200299228
2020-09-24

Processes for the preparation of (S)-tert-butyl 4,5- diamino-5-oxopentanoate

#13
20200262784
2020-08-20

Trifluoromethoxylation of arenes via intramolecular trifluoromethoxy group migration

#14
20200255372
2020-08-13

SOLID DRUG FORM OF N-(2,6-BIS(1-METHYLETHYL)PHENYL)-N'-((1-(4-(DIMETHYLAMINO)PHENYL)CYCLOPENTYL)METHYL)UREA HYDROCHLORIDE AND COMPOSITIONS, METHODS AND KITS RELATED THERETO

#15
20200102260
2020-04-02

Materials exhibiting biomimetic carbon fixation and self-repair

#16
20200010410
2020-01-09

Thermo-thickening compounds for non-polar liquid

#17
20190084924
2019-03-21

Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate

#18
20190071393
2019-03-07

Octahydroanthracene compound, preparation method and application thereof

#19
20190048121
2019-02-14

Reactive amine catalysts for polyurethane applications

#20
20190039993
2019-02-07

Process to prepare higher ethylene amines and ethylene amine derivatives

#21
20190031597
2019-01-31

Process to prepare higher ethylene amines and ethylene amine derivatives

#22
20190016670
2019-01-17

Trifluoromethoylation of arenes via intramolecular trifluoromethoxy group migration

#23
20180186731
2018-07-05

Method for producing amides or polyamides by using aromatic carbamates by way of isocyanates as precursors through catalyzed thermal processes and method for producing aromatic carbamate precursors from aromatic amines

#24
20180079715
2018-03-22

METHOD FOR PRODUCING ALKYLAMINE DERIVATIVE AND ITS PRODUCTION INTERMEDIATE OF ALKYLAMINE DERIVATIVE

#25
20180009743
2018-01-11

Synthesis of carbamate or urea compounds

#26
20170305843
2017-10-26

Solid drug form of N-(2,6-bis(1-methylethyl)phenyl)-N′-((1-(4-(dimethylamino)phenyl)cyclopentyl)methyl)urea hydrochloride and compositions, methods and kits related thereto

#27
20170253557
2017-09-07

Safe and efficient process for the preparation of carmustine

#28
20160347901
2016-12-01

Reactive amine catalysts for polyurethane applications

#29
20160244404
2016-08-25

OPTICAL ISOMERS OF (+) AND (-)-BENZHYDRYL UREAS AND (+) AND (-)-1-[(3-CHLOROPHENYL)-PHENYL-METHYL] UREA, A PHARMACEUTICAL COMPOSITION BASED THEREON AND A METHOD FOR PRODUCING SAID OPTICAL ISOMERS

#30
20160152559
2016-06-02

Process for the preparation of urethanes

#31
20160145201
2016-05-26

Method for producing meta-xylylenediisocyanates

#32
20160090354
2016-03-31

Solid drug form of N-(2,6-bis(1-methylethyl)phenyl)-N′-((1-(4-(dimethylamino)phenyl)cyclopentyl)methyl)urea hydrochloride and compositions, methods and kits related thereto

#33
20140179936
2014-06-26

EPOXIDATION OF GLYCEROL AND DERIVATIVES THEREFROM

#34
20140179532
2014-06-26

Oligourea Compounds and Method for Producing Same and Use Thereof

#35
20110130350
2011-06-02

Synthesis scheme for lacosamide

#36
20100217029
2010-08-26

Production of N-aryl carbamates and N-aryl isocyanates

#37
20090275771
2009-11-05

Process for the preparation of urethanes

#38
20080027137
2008-01-31

Synthesis scheme for lacosamide

#39
20050261524
2005-11-24

Method for the continuous production of tetra-substituted ureas

#40
20050002835
2005-01-06

Micro-engineered reactor