ClassID:

94011

C07D201/04 - CPC Classification

Classification description:

Preparation, separation, purification or stabilisation of unsubstituted lactams; Preparation of lactams from or via oximes by Beckmann rearrangement

Sub-classes:
Recent Application in this class:
#1
20230073615
2023-03-09

Laurolactam preparation method and synthesis apparatus

#2
20230020512
2023-01-19

METHOD FOR PRODUCING LAUROLACTAM, DEVICE FOR SYNTHESIZING SAME, LAUROLACTAM COMPOSITION PRODUCED THEREBY, AND METHOD FOR PRODUCING POLYLAUROLACTAM USING SAME

#3
20220402868
2022-12-22

PROCESS AND PLANT FOR THE PRODUCTION OF EPSILON-CAPROLACTAM AND AMMONIUM SULFATE ON INDUSTRIAL SCALE

#4
20220024868
2022-01-27

Laurolactam preparation method and synthesis apparatus

#5
20220001364
2022-01-06

MFI TOPOLOGICAL STRUCTURE SILICON MOLECULAR SIEVE, PREPARATION METHOD THEREOF AND CATALYST CONTAINING THE SAME

#6
20190241513
2019-08-08

Production method of ϵ-caprolactam

#7
20180179148
2018-06-28

Power supply device, photochemical reaction device and method in which same is used, and lactam production method

#8
20180093949
2018-04-05

Efficient process for the synthesis of cyclic amides

#9
20170305851
2017-10-26

PHOTOIRRADIATION DEVICE, PHOTOREACTION METHOD USING THE SAME, AND METHOD FOR PRODUCING LACTAM

#10
20170298015
2017-10-19

Photochemical reaction device, photochemical reaction method using same, and lactam production method using said method

#11
20160159657
2016-06-09

Process and apparatus for producing ammonium sulfate crystals

#12
20160031784
2016-02-04

Process for preparing cyclododecanone

#13
20160031783
2016-02-04

Process for preparing cyclododecanone

#14
20150353478
2015-12-10

Method for producing oxime

#15
20150306586
2015-10-29

Gas and liquid phase catalytic Beckmann rearrangement of oximes to produce lactams

#16
20150126732
2015-05-07

Gas and liquid phase catalytic beckmann rearrangement of oximes to produce lactams

#17
20140246303
2014-09-04

Method for preparing lactames, comprising a photonitrosation step, followed by a Beckmann transposition step

#18
20140114062
2014-04-24

Method for producing amide compound

#19
20140114061
2014-04-24

Method for producing amide compound

#20
20130109851
2013-05-02

Gas and liquid phase catalytic Beckmann rearrangement of oximes to produce lactams

#21
20130005961
2013-01-03

Compound and process for producing amide compound therewith

#22
20130005960
2013-01-03

Method for producing amide compound

#23
20120184733
2012-07-19

Catalyst composition and method for preparing amide using the same

#24
20110313149
2011-12-22

Method for producing amide compound

#25
20110137027
2011-06-09

METHOD FOR PREPARING LACTAMES, COMPRISING A PHOTONITROSATION STEP, FOLLOWED BY A BECKMANN TRANSPOSITION STEP

#26
20110105793
2011-05-05

Method for separating amide from amino acid ionic liquid

#27
20110092699
2011-04-21

Process for producing amide or lactam

#28
20110077429
2011-03-31

Method and catalyst composition for preparing amide

#29
20110065913
2011-03-17

Process for producing laurolactam

#30
20110034687
2011-02-10

Process for producing amide or lactam

#31
20100324283
2010-12-23

Process for producing laurolactam

#32
20100267944
2010-10-21

Process for producing laurolactam

#33
20100105893
2010-04-29

Method for producing ε-caprolactam and method for producing pentasil type zeolite

#34
20100063274
2010-03-11

Method for preparing amide

#35
20100029932
2010-02-04

PROCESS FOR PRODUCTION OF AMIDE OR LACTAM

#36
20100029931
2010-02-04

METHOD FOR PRODUCING LACTAM COMPOUND

#37
20090093628
2009-04-09

Process for Production of Amides or Lactams

#38
20080214836
2008-09-04

Process for the synthesis of lauryllactam (L12) by gas phase catalytic rearrangement of cyclododecanone oxime

#39
20080033168
2008-02-07

Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactam

#40
20070149778
2007-06-28

BECKMANN REARRANGEMENT USING MOLECULAR SIEVE SSZ-74

#41
20070083043
2007-04-12

Process for preparing caprolactam by Beckmann rearrangement

#42
20070060749
2007-03-15

Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions

#43
20070055061
2007-03-08

Continuous process for preparing caprolactam

#44
20060094873
2006-05-04

Amide-based compounds, production, recovery, purification and uses thereof

#45
20060004194
2006-01-05

Method for manufacturing zeolite and method for manufacturing ε-caprolactam

#46
20050245740
2005-11-03

Method for producing ε-caprolactam

#47
20050182254
2005-08-18

Method for producing ε-caprolactam and method for reactivating catalyst for production of ε-caprolactam

#48
20050010020
2005-01-13

Method for producing epsilon-caprolactam