GB341120A - The manufacture of 6-arylamino-2-naphthols - Google Patents

The manufacture of 6-arylamino-2-naphthols

Info

Publication number
GB341120A
GB341120A GB3133229A GB3133229A GB341120A GB 341120 A GB341120 A GB 341120A GB 3133229 A GB3133229 A GB 3133229A GB 3133229 A GB3133229 A GB 3133229A GB 341120 A GB341120 A GB 341120A
Authority
GB
United Kingdom
Prior art keywords
sulphonic acid
arylamino
naphthols
manufacture
sulphonic
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
GB3133229A
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 GB3133229A priority Critical patent/GB341120A/en
Publication of GB341120A publication Critical patent/GB341120A/en
Expired legal-status Critical Current

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

Abstract

6-Arylamino-2-naphthols are made by the caustic alkali fusion of the corresponding 6-arylamino-naphthalene-2-sulphonic acids preferably under increased pressure. The products of the fusion of 6 - phenylaminonaphthalene - 2 - sulphonic acid, 6-p-tolylaminonaphthalene-2-sulphonic acid and 6-p-naphthylaminonaphthalene-2-sulphonic acid are specified. 6 -pnaphthylaminonaphthalene - 2 - sulphonic acid is prepared by heating 2-hydroxynaphthalene-6-sulphonic acid with p-naphthol in the presence of bisulphite. Specification 18726/00, [Class 2, Acids and salts, Organic &c.], is referred to.
GB3133229A 1929-10-15 1929-10-15 The manufacture of 6-arylamino-2-naphthols Expired GB341120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3133229A GB341120A (en) 1929-10-15 1929-10-15 The manufacture of 6-arylamino-2-naphthols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3133229A GB341120A (en) 1929-10-15 1929-10-15 The manufacture of 6-arylamino-2-naphthols

Publications (1)

Publication Number Publication Date
GB341120A true GB341120A (en) 1931-01-15

Family

ID=10321550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3133229A Expired GB341120A (en) 1929-10-15 1929-10-15 The manufacture of 6-arylamino-2-naphthols

Country Status (1)

Country Link
GB (1) GB341120A (en)

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