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
GB31962/59A
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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 GB856967ApublicationCriticalpatent/GB856967A/en
C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
C07D201/02—Preparation of lactams
C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
a -Aminolactams are prepared by reducing a corresponding a -nitrolactam with hydrogen, preferably dispersed in water and/or p a watermiscible alcohol, using super-atmospheric pressure and in the presence of a hydrogenation catalyst. The process is applicable to the preparation of a -aminovalerolactam, a -aminocaprolactam, a -amino-oenanthalactam and a -aminolactams having up to 13 or more ring carbon atoms. Specification 856,968 is referred to.
GB31962/59A1958-10-151959-09-18Preparation of ª-aminolactams
ExpiredGB856967A
(en)