CA997361A - Benzopyran compounds - Google Patents
Benzopyran compoundsInfo
- 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
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
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)
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 |
-
1972
- 1972-03-31 US US00240112A patent/US3812157A/en not_active Expired - Lifetime
-
1973
- 1973-03-06 CA CA165,338A patent/CA997361A/en not_active Expired
- 1973-03-12 GB GB1175873A patent/GB1368047A/en not_active Expired
- 1973-03-23 DE DE2314540A patent/DE2314540C2/en not_active Expired
- 1973-03-30 JP JP3659073A patent/JPS5619274B2/ja not_active Expired
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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