JPS5619274B2 - - Google Patents
Info
- Publication number
- JPS5619274B2 JPS5619274B2 JP3659073A JP3659073A JPS5619274B2 JP S5619274 B2 JPS5619274 B2 JP S5619274B2 JP 3659073 A JP3659073 A JP 3659073A JP 3659073 A JP3659073 A JP 3659073A JP S5619274 B2 JPS5619274 B2 JP S5619274B2
- Authority
- JP
- Japan
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00240112A US3812157A (en) | 1972-03-31 | 1972-03-31 | Benzopyran compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4915511A JPS4915511A (OSRAM) | 1974-02-12 |
| JPS5619274B2 true JPS5619274B2 (OSRAM) | 1981-05-06 |
Family
ID=22905160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3659073A Expired JPS5619274B2 (OSRAM) | 1972-03-31 | 1973-03-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3812157A (OSRAM) |
| JP (1) | JPS5619274B2 (OSRAM) |
| CA (1) | CA997361A (OSRAM) |
| DE (1) | DE2314540C2 (OSRAM) |
| GB (1) | GB1368047A (OSRAM) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183553A (en) * | 1977-02-04 | 1980-01-15 | Ciba-Geigy Corporation | Pressure- or heat-sensitive recording material and novel chromano compounds used therein |
| CH623273A5 (OSRAM) * | 1977-02-04 | 1981-05-29 | Ciba Geigy Ag | |
| US5837702A (en) * | 1993-10-07 | 1998-11-17 | Bristol-Myers Squibb Co. | 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 |
| US5629429A (en) * | 1995-06-07 | 1997-05-13 | Bristol-Myers Squibb Company | Process for preparing 4-arylamino-benzopyran and related compounds |
| US5612370A (en) * | 1995-06-07 | 1997-03-18 | Bristol-Myers Squibb Company | Phenylglycine and phenylalaninen amido 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/de not_active Expired
- 1973-03-30 JP JP3659073A patent/JPS5619274B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA997361A (en) | 1976-09-21 |
| DE2314540A1 (de) | 1973-10-04 |
| DE2314540C2 (de) | 1983-12-29 |
| JPS4915511A (OSRAM) | 1974-02-12 |
| GB1368047A (en) | 1974-09-25 |
| US3812157A (en) | 1974-05-21 |