GB325387A - The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids - Google Patents

The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids

Info

Publication number
GB325387A
GB325387A GB471129A GB471129A GB325387A GB 325387 A GB325387 A GB 325387A GB 471129 A GB471129 A GB 471129A GB 471129 A GB471129 A GB 471129A GB 325387 A GB325387 A GB 325387A
Authority
GB
United Kingdom
Prior art keywords
aminonaphthalene
sulphonic acid
halogen
chlorinating
chloro
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
GB471129A
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 GB471129A priority Critical patent/GB325387A/en
Publication of GB325387A publication Critical patent/GB325387A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

325,387. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Feb. 12, 1929. 1-Halogen-2-aminonaphthalene sulphonic acids are prepared by acylating a 2-aminonaphthalene mono- or di-sulphonic acid, and treating the compound obtained with a halogenating agent, in an acidic medium, and splitting off the acyl group. In examples the following products are specified : (1) 1-chloro-2-aminonaphthalene-6-sulphonic acid from 2-aminonaphthalene-6-sulphonio acid by chlorinating the acetyl derivative; (2) 1-chloro-2- aminonaphthalene-8-sulphonic acid from 2-aminonaphthalene-8-sulphonic acid, by chlorinating the acetyl derivative; (3) 1-chloro-2-aminonaphthalene-5-sulphonic acid from 2-aminonaphthalene-5- sulphonic acid, by chlorinating the acetyl compound; and (4) 1-bromo-2-aminonaphthalene-7- sulphonic acid from 2-aminonaphthalene-7-sulphonic acid, by brominating the toluene sulphochloride compound.
GB471129A 1929-02-12 1929-02-12 The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids Expired GB325387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB471129A GB325387A (en) 1929-02-12 1929-02-12 The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB471129A GB325387A (en) 1929-02-12 1929-02-12 The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids

Publications (1)

Publication Number Publication Date
GB325387A true GB325387A (en) 1930-02-20

Family

ID=9782343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB471129A Expired GB325387A (en) 1929-02-12 1929-02-12 The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids

Country Status (1)

Country Link
GB (1) GB325387A (en)

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