IE34364B1 - Method for the preparation of omega-lactams and their lactamizable precursors - Google Patents

Method for the preparation of omega-lactams and their lactamizable precursors

Info

Publication number
IE34364B1
IE34364B1 IE867/70A IE86770A IE34364B1 IE 34364 B1 IE34364 B1 IE 34364B1 IE 867/70 A IE867/70 A IE 867/70A IE 86770 A IE86770 A IE 86770A IE 34364 B1 IE34364 B1 IE 34364B1
Authority
IE
Ireland
Prior art keywords
formula
lactams
omega
preparation
nitrosating
Prior art date
Application number
IE867/70A
Other versions
IE34364L (en
Original Assignee
Snia Viscosa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Snia Viscosa filed Critical Snia Viscosa
Publication of IE34364L publication Critical patent/IE34364L/en
Publication of IE34364B1 publication Critical patent/IE34364B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams
    • C07D201/10—Preparation of lactams from cycloaliphatic compounds by simultaneous nitrosylation and rearrangement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Epoxy Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
  • Pyrrole Compounds (AREA)

Abstract

1318618 Omega-lactams SNIA VISCOSA SOC NATIONALE INDUSTRIA APPLICAZIONI VISCOSA SpA 30 June 1970 [5 July 1969] 31572/70 Heading C2C A process for the preparation of an omegalactam having the formula or a precursor thereof (i.e. a compound formed in the process and which can be converted to the lactam by conventional means) comprises nitrosating a cyclomethylene ketene of the formula wherein n has the same value as in the lactam, using a nitrosation agent capable of providing NO + ions in the reaction medium at a temperature of from -60‹ C. to +100‹ C. The nitrosation is preferably carried out in an organic solvent, e.g. CCl 4 or a liquid hydrocarbon using a nitrosating agent of the formula NOX wherein X is nitro, chloro, bisulphate, alkoxy or aryloxy, the molar ratio of the ketene and nitrosating agent (expressed in terms of its content of NO) being between 0À6 : 1 and 1À1 : 1. [GB1318618A]
IE867/70A 1969-07-05 1970-07-03 Method for the preparation of omega-lactams and their lactamizable precursors IE34364B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1925069 1969-07-05

Publications (2)

Publication Number Publication Date
IE34364L IE34364L (en) 1971-01-05
IE34364B1 true IE34364B1 (en) 1975-04-16

Family

ID=11156116

Family Applications (1)

Application Number Title Priority Date Filing Date
IE867/70A IE34364B1 (en) 1969-07-05 1970-07-03 Method for the preparation of omega-lactams and their lactamizable precursors

Country Status (13)

Country Link
JP (2) JPS55377B1 (en)
AT (2) AT306715B (en)
BE (1) BE752976A (en)
CH (1) CH569712A5 (en)
DE (2) DE2065766A1 (en)
ES (1) ES381444A1 (en)
FR (1) FR2054176A5 (en)
GB (1) GB1318618A (en)
IE (1) IE34364B1 (en)
IL (1) IL34837A (en)
NL (1) NL6915003A (en)
SU (1) SU373943A3 (en)
ZA (1) ZA704436B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103718U (en) * 1981-12-30 1983-07-14 松下電器産業株式会社 packaging box
JPS63191740A (en) * 1987-01-29 1988-08-09 松下電器産業株式会社 Packaging box for battery
US9321591B2 (en) 2009-04-10 2016-04-26 Symbotic, LLC Autonomous transports for storage and retrieval systems
US9499338B2 (en) 2010-12-15 2016-11-22 Symbotic, LLC Automated bot transfer arm drive system
US11078017B2 (en) 2010-12-15 2021-08-03 Symbotic Llc Automated bot with transfer arm
WO2015038999A2 (en) 2013-09-13 2015-03-19 Symbotic Llc Automated storage and retrieval system

Also Published As

Publication number Publication date
DE2033122A1 (en) 1971-01-21
NL6915003A (en) 1971-01-07
CH569712A5 (en) 1975-11-28
IE34364L (en) 1971-01-05
AT306715B (en) 1973-04-25
AT323713B (en) 1975-07-25
ES381444A1 (en) 1972-12-01
BE752976A (en) 1971-01-04
ZA704436B (en) 1971-03-31
DE2065766A1 (en) 1976-04-22
JPS5310055B1 (en) 1978-04-11
IL34837A (en) 1973-02-28
SU373943A3 (en) 1973-03-12
GB1318618A (en) 1973-05-31
JPS55377B1 (en) 1980-01-08
IL34837A0 (en) 1970-09-17
FR2054176A5 (en) 1971-04-16

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