GB310757A - Manufacture of ortho-arylcarboxyamido-thioglycollic acids - Google Patents

Manufacture of ortho-arylcarboxyamido-thioglycollic acids

Info

Publication number
GB310757A
GB310757A GB13265/29A GB1326529A GB310757A GB 310757 A GB310757 A GB 310757A GB 13265/29 A GB13265/29 A GB 13265/29A GB 1326529 A GB1326529 A GB 1326529A GB 310757 A GB310757 A GB 310757A
Authority
GB
United Kingdom
Prior art keywords
acids
acid
arylcarboxyamido
ortho
manufacture
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
GB13265/29A
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
Publication of GB310757A publication Critical patent/GB310757A/en
Expired legal-status Critical Current

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

Abstract

310,757. L, G. Farbenindustrie Akt.- Ges. April 28, 1928, [Convention date]. o-Carboxyamidearylthioglycollic acids are obtained by hydrolyzing o-cyanarylthioglycollic acids by means of an aromatic sulphonic acid. Especially suitable are technical mixtures of naphthalene or phenol sulphonic acids, which contain small quantities of free sulphuric acid. According to examples : (1) 4-methoxy-1-carboxyamidebenzene-2-thioglycollic acid is obtained by hydrolyzing the corresponding 1-cyano compound by means of the products of the sulphonation of phenol; (2) sulphonated naphthalene is used to prepare 4-ethoxy-1-carboxyamide benzene-2-thioglycollic acid from the corresponding 1-cyano compound.
GB13265/29A 1928-04-28 1929-04-29 Manufacture of ortho-arylcarboxyamido-thioglycollic acids Expired GB310757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE310757X 1928-04-28

Publications (1)

Publication Number Publication Date
GB310757A true GB310757A (en) 1930-01-30

Family

ID=6125981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13265/29A Expired GB310757A (en) 1928-04-28 1929-04-29 Manufacture of ortho-arylcarboxyamido-thioglycollic acids

Country Status (1)

Country Link
GB (1) GB310757A (en)

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