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
GB1920046A
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.)
Novartis AG
National Starch and Chemical Investment Holding Corp
Original Assignee
JR Geigy AG
National Starch and Chemical Investment Holding Corp
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 JR Geigy AG, National Starch and Chemical Investment Holding CorpfiledCriticalJR Geigy AG
Priority to GB1920046ApriorityCriticalpatent/GB613696A/en
Publication of GB613696ApublicationCriticalpatent/GB613696A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Excess N - (p - methoxy - benzyl) - aniline is heated with b -dimethylamino-ethyl-chloride or its hydrochloride to above 100 DEG C., treated with hot water, cooled to 30-40 DEG C. and excess N-(p-methoxy-benzyl)-aniline filtered off, if necessary after adjusting the pH of the aqueous solution to 5.5-6.5. Pure crystalline N-phenyl-N-(p-methoxy-benzyl) - N1,N1-dimethyl-ethylenediamine mono-hydrochloride is then obtained on cooling the filtrate to about 0 DEG C. The reaction may be carried out in the presence of an organic solvent such as benzene or an excess of N-(p-methoxy-benzyl)-aniline.
GB1920046A1946-06-271946-06-27Improvements relating to the manufacture of tetrasubstituted ethylendiamines
ExpiredGB613696A
(en)