GB1148424A - Lactams - Google Patents

Lactams

Info

Publication number
GB1148424A
GB1148424A GB1828267A GB1828267A GB1148424A GB 1148424 A GB1148424 A GB 1148424A GB 1828267 A GB1828267 A GB 1828267A GB 1828267 A GB1828267 A GB 1828267A GB 1148424 A GB1148424 A GB 1148424A
Authority
GB
United Kingdom
Prior art keywords
acid
nitrous
nitrosyl
dodecanolactam
cyclododecane
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1828267A
Inventor
David Arthur Cornforth
Frederick Keith Duxbury
David Harold Johnson
Derek Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1828267A priority Critical patent/GB1148424A/en
Publication of GB1148424A publication Critical patent/GB1148424A/en
Expired legal-status Critical Current

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,148,424. Dodecanolactam. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 March, 1968 [20 April, 1967], No. 18282/67. Heading C2C. Dodecanolactam is produced by reacting a monosubstituted cyclododecane with a nitrosating agent in the presence of chlorosulphonic acid. The substituent in the monosubstituted cyclododecane is preferably an electron withdrawing group, for example an hydroxyalkyl, ketone, sulphone, carboxylic acid or carboxylic ester group. The nitrosating agent may be nitrous acid or any derivative of nitrous acid such as sodium nitrite, an alkyl nitrite, nitrous anhydride, nitrosyl chloride or bromide, nitrosyl sulphuric acid anhydride or nitrosyl sulphuric acid. The chlorosulphonic acid may be the sole reaction medium or may be mixed with sulphuric acid or oleum or with an inert organic solvent. The reaction is usually carried out at temperatures within the range 25‹ to 150‹ C.
GB1828267A 1967-04-20 1967-04-20 Lactams Expired GB1148424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1828267A GB1148424A (en) 1967-04-20 1967-04-20 Lactams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1828267A GB1148424A (en) 1967-04-20 1967-04-20 Lactams

Publications (1)

Publication Number Publication Date
GB1148424A true GB1148424A (en) 1969-04-10

Family

ID=10109790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1828267A Expired GB1148424A (en) 1967-04-20 1967-04-20 Lactams

Country Status (1)

Country Link
GB (1) GB1148424A (en)

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