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
GB1210/63A
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.)
Merck and Co Inc
Original Assignee
Merck and Co Inc
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 Merck and Co IncfiledCriticalMerck and Co Inc
Publication of GB1009042ApublicationCriticalpatent/GB1009042A/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
Abstract
3-Chlorocaprolactam is obtained by reacting N - benzoyl - 3 - chlorocaprolactam with sulphuric acid, preferably containing at least 90% H2SO4. Oleum may be used. Specification 844,267 is referred to.
GB1210/63A1962-01-291963-01-10Preparation of 3-chlorocaprolactam
ExpiredGB1009042A
(en)