FR1540028A - New optical brighteners - Google Patents
New optical brightenersInfo
- Publication number
- FR1540028A FR1540028A FR120960A FR120960A FR1540028A FR 1540028 A FR1540028 A FR 1540028A FR 120960 A FR120960 A FR 120960A FR 120960 A FR120960 A FR 120960A FR 1540028 A FR1540028 A FR 1540028A
- Authority
- FR
- France
- Prior art keywords
- optical brighteners
- new optical
- new
- brighteners
- optical
- 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
-
- 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
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
- C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR120960A FR1540028A (en) | 1966-09-21 | 1967-09-14 | New optical brighteners |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB42223/66A GB1152875A (en) | 1966-09-21 | 1966-09-21 | Coumarin Derivatives and their use as Optical Whitening Agents |
FR120960A FR1540028A (en) | 1966-09-21 | 1967-09-14 | New optical brighteners |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1540028A true FR1540028A (en) | 1968-09-20 |
Family
ID=26179438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR120960A Expired FR1540028A (en) | 1966-09-21 | 1967-09-14 | New optical brighteners |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1540028A (en) |
-
1967
- 1967-09-14 FR FR120960A patent/FR1540028A/en not_active Expired
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