GB760086A - Process for the production of ú­-aminomethyl benzoic acid esters - Google Patents

Process for the production of ú­-aminomethyl benzoic acid esters

Info

Publication number
GB760086A
GB760086A GB28683/54A GB2868354A GB760086A GB 760086 A GB760086 A GB 760086A GB 28683/54 A GB28683/54 A GB 28683/54A GB 2868354 A GB2868354 A GB 2868354A GB 760086 A GB760086 A GB 760086A
Authority
GB
United Kingdom
Prior art keywords
benzoic acid
ester
methyl
liquid ammonia
aminomethyl
Prior art date
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
GB28683/54A
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.)
Glanzstoff AG
Vereinigte Glanzstoff Fabriken AG
Original Assignee
Glanzstoff AG
Vereinigte Glanzstoff Fabriken AG
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 Glanzstoff AG, Vereinigte Glanzstoff Fabriken AG filed Critical Glanzstoff AG
Publication of GB760086A publication Critical patent/GB760086A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00Preparation of carboxylic acid amides
    • C07C231/02Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for the production of p-aminomethyl benzoic acid esters an ester of a p-halogen methyl benzoic acid with an alcohol is reacted under pressure with ammonia, for example liquid ammonia, at a temperature of 0 DEG to 30 DEG C., preferably 10 DEG to 15 DEG C., during a reaction period of up to two hours. In a modification of the process a p-halogen methyl benzoic acid is first reacted with ammonia, for example liquid ammonia, under the conditions specified above and the acid formed is esterified with an alcohol. Esters may be prepared from monovalent alcohols to give, e.g., the methyl, ethyl, butyl and amyl esters in diprimary alcohols, e.g. glycol may be employed for the esterification. The free acid may be recovered from the ester by hydrolysis with cold hydrochloric acid. In examples: commercial liquid ammonia is filtered through alkali-treated alumina to eliminate traces of iron and copper, is reacted under pressure with p-chloromethyl benzoic acid methyl ester to obtain p-aminomethyl benzoic methyl ester (1) and p-aminomethyl benzoic acid ethyl ester is similarly prepared from liquid ammonia and p-chloromethyl benzoic acid ethyl ester (4); p-aminomethyl benzoic acid methyl ester is obtained by reacting p-chloromethyl benzoic acid with liquid ammonia under pressure to obtain p-aminomethyl benzoic acid which is reacted with methanol (2); and the corresponding ethyl ester is similarly prepared (3). p-Chloromethyl benzoic acid methyl ester may be prepared by half oxydizing p-xylylene dichloride with, e.g. 50 per cent nitric acid at elevated temperature, separating the reaction product and esterifying the p-chloromethyl benzoic acid with methyl alcohol.
GB28683/54A 1953-12-01 1954-10-05 Process for the production of ú­-aminomethyl benzoic acid esters Expired GB760086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE760086X 1953-12-01

Publications (1)

Publication Number Publication Date
GB760086A true GB760086A (en) 1956-10-31

Family

ID=6660875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28683/54A Expired GB760086A (en) 1953-12-01 1954-10-05 Process for the production of ú­-aminomethyl benzoic acid esters

Country Status (1)

Country Link
GB (1) GB760086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108623488A (en) * 2018-06-20 2018-10-09 湖南文理学院 A kind of synthetic method of aminomethylbenzoic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108623488A (en) * 2018-06-20 2018-10-09 湖南文理学院 A kind of synthetic method of aminomethylbenzoic acid
CN108623488B (en) * 2018-06-20 2021-10-01 湖南文理学院 Synthetic method of aminomethylbenzoic acid

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