CA997361A - Benzopyran compounds - Google Patents

Benzopyran compounds

Info

Publication number
CA997361A
CA997361A CA165,338A CA165338A CA997361A CA 997361 A CA997361 A CA 997361A CA 165338 A CA165338 A CA 165338A CA 997361 A CA997361 A CA 997361A
Authority
CA
Canada
Prior art keywords
benzopyran compounds
benzopyran
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
CA165,338A
Other versions
CA165338S (en
Inventor
Arthur J. Wright
Chao-Han Lin
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 CA997361A publication Critical patent/CA997361A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
    • C07D311/60—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with aryl radicals attached in position 2
CA165,338A 1972-03-31 1973-03-06 Benzopyran compounds Expired CA997361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00240112A US3812157A (en) 1972-03-31 1972-03-31 Benzopyran compounds

Publications (1)

Publication Number Publication Date
CA997361A true CA997361A (en) 1976-09-21

Family

ID=22905160

Family Applications (1)

Application Number Title Priority Date Filing Date
CA165,338A Expired CA997361A (en) 1972-03-31 1973-03-06 Benzopyran compounds

Country Status (5)

Country Link
US (1) US3812157A (en)
JP (1) JPS5619274B2 (en)
CA (1) CA997361A (en)
DE (1) DE2314540C2 (en)
GB (1) GB1368047A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH623273A5 (en) * 1977-02-04 1981-05-29 Ciba Geigy Ag
US4183553A (en) * 1977-02-04 1980-01-15 Ciba-Geigy Corporation Pressure- or heat-sensitive recording material and novel chromano compounds used therein
US5837702A (en) * 1993-10-07 1998-11-17 Bristol-Myers Squibb Co. 4-arylamino-benzopyran and related compounds
US5612370A (en) * 1995-06-07 1997-03-18 Bristol-Myers Squibb Company Phenylglycine and phenylalaninen amido benzopyran derivatives
US5629429A (en) * 1995-06-07 1997-05-13 Bristol-Myers Squibb Company Process for preparing 4-arylamino-benzopyran and related compounds
US5612323A (en) * 1995-06-07 1997-03-18 Bristol-Myers Squibb Company Phosphinic ester substituted benzopyran derivatives
US5869478A (en) * 1995-06-07 1999-02-09 Bristol-Myers Squibb Company Sulfonamido substituted benzopyran derivatives

Also Published As

Publication number Publication date
JPS4915511A (en) 1974-02-12
JPS5619274B2 (en) 1981-05-06
GB1368047A (en) 1974-09-25
DE2314540A1 (en) 1973-10-04
DE2314540C2 (en) 1983-12-29
US3812157A (en) 1974-05-21

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