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
GB836961A
Inventor
Johannes Hubertus Ottenheym
Johan Willem Garritsen
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BVfiledCriticalStamicarbon BV
Priority to GB836961ApriorityCriticalpatent/GB902390A/en
Publication of GB902390ApublicationCriticalpatent/GB902390A/en
The invention comprises 2-chloro-azacyclo-2,3 - hexene - N - carbochloride and 2-chloro-azacyclo-2,3-octene-N-carbochloride and their preparation by reacting in the liquid phase phosgene with d -valerolactam and #z-enantholactam, respectively, the lactam reactant being used (1) as such, and while ensuring that at all or substantially all times during the reaction there is an excess of the phosgene over the stoichiometric amount (i.e., a molar ratio of phosgene to lactam of more than 2 : 1), or (2) as the hydrochloric acid salt. Specification 901,169 also is referred to.
GB836961A1961-03-071961-03-07Preparation of 2-chloro-azacyclo-2.3-alkene-n-carbochlorides
ExpiredGB902390A
(en)