GB1529076A - Chromogenic compounds - Google Patents

Chromogenic compounds

Info

Publication number
GB1529076A
GB1529076A GB3220176A GB3220176A GB1529076A GB 1529076 A GB1529076 A GB 1529076A GB 3220176 A GB3220176 A GB 3220176A GB 3220176 A GB3220176 A GB 3220176A GB 1529076 A GB1529076 A GB 1529076A
Authority
GB
United Kingdom
Prior art keywords
methylindole
ethyl
carboxylic
carbonylquinoline
aug
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
GB3220176A
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.)
Yamamoto Chemicals Inc
Original Assignee
Yamamoto Chemicals Inc
Yamamoto Chemical Gosei Co Ltd
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 Yamamoto Chemicals Inc, Yamamoto Chemical Gosei Co Ltd filed Critical Yamamoto Chemicals Inc
Publication of GB1529076A publication Critical patent/GB1529076A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

1529076 (1-Ethyl-2-methylindole-3-yl)carbonylguindine-carboxylic acids YAMAMOTO KAGAKU GOSEI CO Ltd 3 Aug 1976 [6 Aug 1975] 32201/76 Heading C2C [Also in Division C4] In Example 2 a mixture of 2(1-ethyl-2- methylindole - 3 - yl) carbonylquinoline - 3 - carboxylic-acid and 3(1-ethyl-2-methylindole-3-yl) carbonylquinoline-2-carboxylic acid m.p. 196- 198‹ C. is prepared by reacting 1-ethyl-2-methylindole and quinoline-2,3-dicarboxylic acid anhydride under reflux in oxylene.
GB3220176A 1975-08-06 1976-08-03 Chromogenic compounds Expired GB1529076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50094950A JPS5220113A (en) 1975-08-06 1975-08-06 Recording materials

Publications (1)

Publication Number Publication Date
GB1529076A true GB1529076A (en) 1978-10-18

Family

ID=14124211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3220176A Expired GB1529076A (en) 1975-08-06 1976-08-03 Chromogenic compounds

Country Status (4)

Country Link
JP (1) JPS5220113A (en)
BE (1) BE844962A (en)
DE (1) DE2634987A1 (en)
GB (1) GB1529076A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791898A (en) * 1971-11-26 1973-05-24 Ciba Geigy Ag PROCESS FOR THE PREPARATION OF CHROMOGENOUS SUBSTANCES FROM INDOLES AND ANHYDRIDES OF VICINAL, AROMATIC OR HETEROAROMATIC DICARBOXYLIC ACIDS, NEW CHROMOGENES OF THIS CATEGORY AND THEIR USE
DE2259409C2 (en) * 1971-12-06 1985-10-10 Appleton Papers Inc., Appleton, Wis. Chromogenic furo [3,4-b] pyridin-7-ones and pyrazin-5-ones
JPS5124362B2 (en) * 1973-03-15 1976-07-23
JPS585210B2 (en) * 1973-07-24 1983-01-29 保土谷化学工業株式会社 Shikiso no seisokuuhouhou

Also Published As

Publication number Publication date
DE2634987C2 (en) 1989-08-17
JPS544283B2 (en) 1979-03-05
JPS5220113A (en) 1977-02-15
BE844962A (en) 1976-12-01
DE2634987A1 (en) 1977-02-24

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Legal Events

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