GB1433574A - Bis-coumarins - Google Patents
Bis-coumarinsInfo
- Publication number
- GB1433574A GB1433574A GB3051074A GB3051074A GB1433574A GB 1433574 A GB1433574 A GB 1433574A GB 3051074 A GB3051074 A GB 3051074A GB 3051074 A GB3051074 A GB 3051074A GB 1433574 A GB1433574 A GB 1433574A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkyl
- formula
- hydrogen
- compound
- aryl
- 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
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
1433574 Bis-coumarin derivatives BAYER AG 10 July 1974 [11 July 1973] 30510/74 Heading C2C Novel bis-coumarin derivatives of the formula wherein R 1 is aralkyl, alkyl or aryl; R 2 is hydrogen, cyano, carboxylic acid or ester, carbonamide, acylamino, alkoxy, or R 1 ; or R 1 and R 2 together denote a fused hydroaromatic or aromatic ring; R 3 is hydrogen, halogen, alkyl or aryl; R 4 is hydrogen, alkyl or aryl; R 5 is halogen or alkyl; X is a direct bond or a bridge member; n is 0 or 1 and m is 0, 1 or 2, are prepared by either (i) condensing 2 mols of a compound of the formula wherein Z is oxygen or NR 8 ; Y is hydrogen, (C 1 -C 4 ) alkyl or SO 2 R 9 ; R 8 is optionally substituted phenyl; R 9 is phenyl or dialkylamino, with 1 mol of a compound of the formula wherein W is carboxyl or cyano; (ii) triazolyzing a compound of the formula or (iii) oxidately cyclizing a compound of the formula wherein R 1 <SP>1</SP> and R 2 <SP>1</SP> together denote a fused aromatic ring. The novel compounds are useful as optical brightening agents.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732335218 DE2335218A1 (en) | 1973-07-11 | 1973-07-11 | BIS-CUMARINE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1433574A true GB1433574A (en) | 1976-04-28 |
Family
ID=5886549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3051074A Expired GB1433574A (en) | 1973-07-11 | 1974-07-10 | Bis-coumarins |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5043127A (en) |
| BE (1) | BE817471A (en) |
| CH (1) | CH597296A5 (en) |
| DE (1) | DE2335218A1 (en) |
| FR (1) | FR2236866B1 (en) |
| GB (1) | GB1433574A (en) |
| IT (1) | IT1015699B (en) |
| NL (1) | NL7409221A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH620322B (en) * | 1976-03-26 | Ciba Geigy Ag | USE OF 3-PHENYL-7- (V-TRIAZOL-2-YL) CUMARINES FOR THE OPTICAL LIGHTENING OF ORGANIC MATERIALS. | |
| DE3026958A1 (en) * | 1980-07-16 | 1982-02-04 | Bayer Ag, 5090 Leverkusen | 2- (2,2,2-TRICHLOR-1-HYDROXY-ETHYL) -PHENOLE, A METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF FOR THE PRODUCTION OF SALICYL ALDEHYDES |
-
1973
- 1973-07-11 DE DE19732335218 patent/DE2335218A1/en active Pending
-
1974
- 1974-07-08 NL NL7409221A patent/NL7409221A/en unknown
- 1974-07-09 JP JP7794574A patent/JPS5043127A/ja active Pending
- 1974-07-09 IT IT2498274A patent/IT1015699B/en active
- 1974-07-10 BE BE146403A patent/BE817471A/en unknown
- 1974-07-10 CH CH952274A patent/CH597296A5/xx not_active IP Right Cessation
- 1974-07-10 GB GB3051074A patent/GB1433574A/en not_active Expired
- 1974-07-11 FR FR7424235A patent/FR2236866B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5043127A (en) | 1975-04-18 |
| CH597296A5 (en) | 1978-03-31 |
| BE817471A (en) | 1975-01-10 |
| NL7409221A (en) | 1975-01-14 |
| DE2335218A1 (en) | 1975-01-30 |
| FR2236866B1 (en) | 1978-03-24 |
| IT1015699B (en) | 1977-05-20 |
| FR2236866A1 (en) | 1975-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |