GB302212A - Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids - Google Patents

Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids

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Publication number
GB302212A
GB302212A GB2398227A GB2398227A GB302212A GB 302212 A GB302212 A GB 302212A GB 2398227 A GB2398227 A GB 2398227A GB 2398227 A GB2398227 A GB 2398227A GB 302212 A GB302212 A GB 302212A
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GB
United Kingdom
Prior art keywords
acid
carboxylic
hydroxy
carboxylic acids
group
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
GB2398227A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2398227A priority Critical patent/GB302212A/en
Publication of GB302212A publication Critical patent/GB302212A/en
Expired legal-status Critical Current

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Abstract

302,212. I. G. Farbenindustrie Akt.- Ges., and Hentrich, W. Sept, 12, 1927. Addition to 230,457. # - Aminoalkylaminonaphtalene carboxylic acids; azo dyes.-#-Aminoalkylaminonaphthalene carboxylic acids are obtained by reacting with an alkylenediamine and a soluble sulphite on a hydroxy- or amino-naphthalene carboxylic acid,. other than one containing the hydroxy or amino group in ortho-position to the carboxylic group. The products are dyestuff intermediates. In examples, (1) #-aminoethyl-2-aminonaphthalene- 6-carboxylic acid is obtained by heating 2 : 6- oxynaphthoic acid with ethylenediamine hydrate and sodium bisulphite solution; the product couples in acid medium with diazotized 4- nitraniline-2-sulphonic acid with the formation of a deep blue violet colouration : 2: 6-aminonaphthoic acid may be used instead of 2 : 6-oxynaphthoic acid, and other hydroxy- or aminonaphthoic acids react in the same manner, provided the hydroxy or amino group is not in theortho-position to the carboxylic group, and (2) # - aminobutyl-2-aminonaphthalene-6-carboxylicacid is similarly obtained from 2 : 6-oxynaphthoicacid, 1 : 4-butylene diamine and sodium bisulphite ; it yields a reddish-blue dyestuff when coupled in acid medium with 4-nitraniline-2-sul-. phonic acid. Specification 230,457 is referred to.
GB2398227A 1927-09-12 1927-09-12 Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids Expired GB302212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2398227A GB302212A (en) 1927-09-12 1927-09-12 Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2398227A GB302212A (en) 1927-09-12 1927-09-12 Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids

Publications (1)

Publication Number Publication Date
GB302212A true GB302212A (en) 1928-12-12

Family

ID=10204503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2398227A Expired GB302212A (en) 1927-09-12 1927-09-12 Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids

Country Status (1)

Country Link
GB (1) GB302212A (en)

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