GB2171111B - Novel synthesis of 2,6-diamino fluorans - Google Patents

Novel synthesis of 2,6-diamino fluorans

Info

Publication number
GB2171111B
GB2171111B GB08504026A GB8504026A GB2171111B GB 2171111 B GB2171111 B GB 2171111B GB 08504026 A GB08504026 A GB 08504026A GB 8504026 A GB8504026 A GB 8504026A GB 2171111 B GB2171111 B GB 2171111B
Authority
GB
United Kingdom
Prior art keywords
fluorans
diamino
novel synthesis
synthesis
novel
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
GB08504026A
Other versions
GB2171111A (en
GB8504026D0 (en
Inventor
Rudolf Zink
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Priority to GB08504026A priority Critical patent/GB2171111B/en
Publication of GB8504026D0 publication Critical patent/GB8504026D0/en
Publication of GB2171111A publication Critical patent/GB2171111A/en
Application granted granted Critical
Publication of GB2171111B publication Critical patent/GB2171111B/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
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10—Amino derivatives of triarylmethanes
    • C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/136—Organic colour formers, e.g. leuco dyes
    • B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/1455—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring characterised by fluoran compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/3275—Fluoran compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/10—Spiro-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
GB08504026A 1985-02-16 1985-02-16 Novel synthesis of 2,6-diamino fluorans Expired GB2171111B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08504026A GB2171111B (en) 1985-02-16 1985-02-16 Novel synthesis of 2,6-diamino fluorans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08504026A GB2171111B (en) 1985-02-16 1985-02-16 Novel synthesis of 2,6-diamino fluorans

Publications (3)

Publication Number Publication Date
GB8504026D0 GB8504026D0 (en) 1985-03-20
GB2171111A GB2171111A (en) 1986-08-20
GB2171111B true GB2171111B (en) 1988-06-08

Family

ID=10574608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08504026A Expired GB2171111B (en) 1985-02-16 1985-02-16 Novel synthesis of 2,6-diamino fluorans

Country Status (1)

Country Link
GB (1) GB2171111B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837210A (en) * 1987-01-27 1989-06-06 Appleton Papers Inc. Fluoran derivatives and their use in recording materials
CN101693717B (en) * 2009-10-09 2011-09-14 寿光富康制药有限公司 Preparation method of temperature-sensitive paper additives

Also Published As

Publication number Publication date
GB2171111A (en) 1986-08-20
GB8504026D0 (en) 1985-03-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930216