GB1284177A - A process for the manufacture of basic oxazine dyestuffs - Google Patents

A process for the manufacture of basic oxazine dyestuffs

Info

Publication number
GB1284177A
GB1284177A GB2369870A GB2369870A GB1284177A GB 1284177 A GB1284177 A GB 1284177A GB 2369870 A GB2369870 A GB 2369870A GB 2369870 A GB2369870 A GB 2369870A GB 1284177 A GB1284177 A GB 1284177A
Authority
GB
United Kingdom
Prior art keywords
formula
alkyl
manufacture
carried out
mineral acid
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
GB2369870A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1284177A publication Critical patent/GB1284177A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B19/00—Oxazine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1284177 Basic oxazine dyestuffs FARBWERKE HOECHST AG 15 May 1970 [16 May 1969] 23698/70 Heading C4P A dyestuff of the Formula I where R 1 is C 1-4 alkyl, R 2 is hydrogen or C 1-4 alkyl and X<SP>(-)</SP> is an anion, which gives reddishblue to reddish-violet shades on polyacrylonitrile fibres, is prepared by nitrosating, in an aqueous solution of a mineral acid, an amine of Formula II rearranging the nitrosamine to obtain the corresponding p-nitroso compound, and condensing the aqueous suspension of the mineral acid salt of the p-nitroso compound, without intermediate isolation, with a m-aminophenol of the Formula III Preferably the process is carried out at a temperature of 60‹ to 100‹ C. and a pH of 2 to 3. The process may be carried out in the presence of a polyglycol having a molecular weight of 500 to 5000 or in the presence of a C 1-3 alkanol.
GB2369870A 1969-05-16 1970-05-15 A process for the manufacture of basic oxazine dyestuffs Expired GB1284177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691925052 DE1925052C3 (en) 1969-05-16 1969-05-16 Process for the preparation of basic oxazine dyes

Publications (1)

Publication Number Publication Date
GB1284177A true GB1284177A (en) 1972-08-02

Family

ID=5734371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2369870A Expired GB1284177A (en) 1969-05-16 1970-05-15 A process for the manufacture of basic oxazine dyestuffs

Country Status (7)

Country Link
BE (1) BE750579A (en)
CH (1) CH537441A (en)
DE (1) DE1925052C3 (en)
ES (1) ES379673A1 (en)
FR (1) FR2048492A5 (en)
GB (1) GB1284177A (en)
NL (1) NL7006708A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH593321A5 (en) * 1974-04-29 1977-11-30 Ciba Geigy Ag
DE3033439A1 (en) * 1980-09-05 1982-04-22 Basf Ag, 6700 Ludwigshafen BASIC COLORS OF THE OXAZINE SERIES
DE4222205C2 (en) * 1992-07-07 1995-01-12 Gkn Automotive Ag Ball constant velocity joint
DE59705210D1 (en) 1997-12-06 2001-12-06 Iprotec Masch & Edelstahlprod Process for finishing the spherical star of a constant velocity joint

Also Published As

Publication number Publication date
FR2048492A5 (en) 1971-03-19
ES379673A1 (en) 1972-08-01
DE1925052B2 (en) 1974-03-14
BE750579A (en) 1970-11-19
DE1925052C3 (en) 1974-10-31
NL7006708A (en) 1970-11-18
CH537441A (en) 1973-05-31
DE1925052A1 (en) 1970-11-26

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees