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CA1003420A - Naphthalide compounds - Google Patents

Naphthalide compounds

Info

Publication number
CA1003420A
CA1003420A CA162,246A CA162246A CA1003420A CA 1003420 A CA1003420 A CA 1003420A CA 162246 A CA162246 A CA 162246A CA 1003420 A CA1003420 A CA 1003420A
Authority
CA
Canada
Prior art keywords
naphthalide
compounds
naphthalide compounds
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
CA162,246A
Other versions
CA162246S (en
Inventor
Sheldon Farber
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.)
NCR Voyix Corp
Original Assignee
NCR Corp
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 NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA1003420A publication Critical patent/CA1003420A/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
    • B41M5/26—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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA162,246A 1972-03-22 1973-01-29 Naphthalide compounds Expired CA1003420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00237000A US3804855A (en) 1972-03-22 1972-03-22 Naphthalide compounds

Publications (1)

Publication Number Publication Date
CA1003420A true CA1003420A (en) 1977-01-11

Family

ID=22891915

Family Applications (1)

Application Number Title Priority Date Filing Date
CA162,246A Expired CA1003420A (en) 1972-03-22 1973-01-29 Naphthalide compounds

Country Status (5)

Country Link
US (1) US3804855A (en)
JP (1) JPS5619275B2 (en)
CA (1) CA1003420A (en)
DE (1) DE2313679C2 (en)
GB (1) GB1368938A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954799A (en) * 1971-01-21 1976-05-04 Polaroid Corporation Protonated indole phthalides and naphthalides
US3862128A (en) * 1971-12-02 1975-01-21 Polaroid Corp Naphthalide indicator dyes
GB1467898A (en) * 1974-04-09 1977-03-23 Ciba Geigy Ag Heterocyclic substituted lactone compounds their manufacture and use
US4020056A (en) * 1975-04-10 1977-04-26 Ncr Corporation Di-vinyl phthalides color formers
US4022771A (en) * 1975-04-10 1977-05-10 Ncr Corporation Aminophenyl lactone compounds containing an ethyleno group
US4189171A (en) * 1977-03-01 1980-02-19 Sterling Drug Inc. Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides
JPS5690031A (en) * 1979-12-21 1981-07-21 Sumitomo Chem Co Ltd Preparation of aromatic aldehyde
JPS60195083U (en) * 1984-06-07 1985-12-26 株式会社　ソフイア Pachinko machine hitting ball control device
WO2001087714A2 (en) * 2000-05-18 2001-11-22 Spectra Systems Corporation Visual indicator for verification of an object

Also Published As

Publication number Publication date
JPS5619275B2 (en) 1981-05-06
DE2313679C2 (en) 1982-06-03
US3804855A (en) 1974-04-16
GB1368938A (en) 1974-10-02
DE2313679A1 (en) 1973-10-04
JPS4914213A (en) 1974-02-07

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