GB468188A - Manufacture of oxybenzofluorenones - Google Patents

Manufacture of oxybenzofluorenones

Info

Publication number
GB468188A
GB468188A GB32407/36A GB3240736A GB468188A GB 468188 A GB468188 A GB 468188A GB 32407/36 A GB32407/36 A GB 32407/36A GB 3240736 A GB3240736 A GB 3240736A GB 468188 A GB468188 A GB 468188A
Authority
GB
United Kingdom
Prior art keywords
condensing
diazotized
methoxy
amino
give
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
GB32407/36A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Publication of GB468188A publication Critical patent/GB468188A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups

Landscapes

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

Abstract

Oxybenzofluorenones are made by condensing an oxynaphthylphenyl ketone of the general formula <FORM:0468188/IV/1> wherein X stands for a hydrogen atom, with an acid condensing agent. The products dissolve in caustic alkali to a red-violet solution, preferably in presence of an auxiliary such as turkey-red oil, react with diazo compounds to give azo-dyes, and their alkali salts have affinity for cellulose fibres. Thus 1-oxy-3:4-benzofluorenone may be coupled on the fibre with diazotized 4.4<1>-dichlor-2-aminodiphenyl ether to yield a bordeaux tent and with diazotized 4-amino-3-methoxy-azobenzene or 4-amino-3-methoxy-6-methyl-4<1>-chlorazobenzene to give a fast black shade. In examples, 2-oxynaphthalene-3-phenyl ketone or its 4<1>-methyl derivative is melted with aluminium chloride. The oxynaphthylphenylketones used as starting materials are made by condensing a halide of 2.3-oxynaphthoic acid with benzene or a derivative.
GB32407/36A 1935-11-26 1936-11-26 Manufacture of oxybenzofluorenones Expired GB468188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH468188X 1935-11-26

Publications (1)

Publication Number Publication Date
GB468188A true GB468188A (en) 1937-06-30

Family

ID=4515926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32407/36A Expired GB468188A (en) 1935-11-26 1936-11-26 Manufacture of oxybenzofluorenones

Country Status (1)

Country Link
GB (1) GB468188A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744453A (en) * 1950-09-20 1956-05-08 Beloit Iron Works Reverse press assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744453A (en) * 1950-09-20 1956-05-08 Beloit Iron Works Reverse press assembly

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