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
GB14227/62A
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Stamicarbon BV
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Stamicarbon BV
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Publication date
Application filed by Stamicarbon BVfiledCriticalStamicarbon BV
Publication of GB1001609ApublicationCriticalpatent/GB1001609A/en
C07D225/00—Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom
C07D225/02—Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom not condensed with other rings
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Epoxy Compounds
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Valerolactam, oenantholactam and dodecyllactam are prepared by reacting the corresponding cycloalkane carboxylic acid and/or a derivative thereof with a nitrosation agent in the presence of sulphuric acid. Sulphur trioxide may also be present. Derivatives which may be used are the salts, esters and anhydrides of the acids or the cycloalkane carbohalogenides, carbonamides and carbonitriles. Reference has been directed by the Comptroller to Specifications 940,255 and 948,544.
GB14227/62A1961-04-141962-04-12A process for the preparation of valerolactam, oanantholactam or dodecyllactam
ExpiredGB1001609A
(en)
Process for the manufacture of acid, stable aqueous dispersions of at least one nitrile and at least one carboxylic acid, and dispersions obtained thereby