ES422902A1 - Benzofuran derivatives and their use as optical brighteners - Google Patents
Benzofuran derivatives and their use as optical brightenersInfo
- Publication number
- ES422902A1 ES422902A1 ES422902A ES422902A ES422902A1 ES 422902 A1 ES422902 A1 ES 422902A1 ES 422902 A ES422902 A ES 422902A ES 422902 A ES422902 A ES 422902A ES 422902 A1 ES422902 A1 ES 422902A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- groups
- see formula
- optionally
- stand
- 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
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
- C07D307/84—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
- C07D307/85—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Furan Compounds (AREA)
- Detergent Compositions (AREA)
Abstract
Procedure for the preparation of benzofuran derivatives of the formula (1) ** (See formula) ** wherein A and B stand for mononuclear or polynuclear aromatic ring systems, which are bonded to the furan nuclei in the manner indicated by two adjacent carbon atoms; R and S stand for hydrogen or halogen atoms, lower alcohol groups, phenyl groups optionally substituted with lower alcohol groups, lower alkoxy groups or halogen atoms, as well as optionally functionally modified carboxy or sulfo groups; and D represents a divalent, aliphatic, aromatic or heteroaromatic binding member, which prolongs conjugation, characterized in that carboxylic acid derivatives of the general formula are reacted (4) ** (See formula) ** with carboxylic acid derivatives of the general formula (5) ** (See formula) ** where, in formulas (4) and (5), one of the symbols Z and Z'means a halogen atom and the other symbol means the group -NH-NH2, and A, B, D, R and S have the aforementioned meanings, in inert organic solvents or solvent mixtures, optionally using an acid accepting agent, to form diacylhydrazides of the formula (6) ** (See formula) ** in which A, B, D, R and S have the aforementioned meanings, and from these, by heating in water-removing media or by heating in inert solvents or solvent mixtures, one mole of water is separated in the presence of catalysts acids. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH188173A CH593379B5 (en) | 1973-02-09 | 1973-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES422902A1 true ES422902A1 (en) | 1976-09-16 |
Family
ID=4220761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES422902A Expired ES422902A1 (en) | 1973-02-09 | 1974-02-04 | Benzofuran derivatives and their use as optical brighteners |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS49112928A (en) |
| AT (1) | AT332869B (en) |
| BE (1) | BE810844A (en) |
| BR (1) | BR7400946D0 (en) |
| CA (1) | CA1026342A (en) |
| CH (2) | CH593379B5 (en) |
| DE (1) | DE2405063A1 (en) |
| ES (1) | ES422902A1 (en) |
| FR (1) | FR2217338B1 (en) |
| GB (1) | GB1456267A (en) |
| IN (1) | IN140448B (en) |
| IT (1) | IT1007261B (en) |
| NL (1) | NL7401502A (en) |
| SE (1) | SE386899B (en) |
| SU (1) | SU577993A3 (en) |
-
1973
- 1973-02-09 CH CH188173A patent/CH593379B5/xx not_active IP Right Cessation
- 1973-02-09 CH CH188173D patent/CH188173A4/xx unknown
-
1974
- 1974-02-02 DE DE19742405063 patent/DE2405063A1/en not_active Withdrawn
- 1974-02-04 NL NL7401502A patent/NL7401502A/xx not_active Application Discontinuation
- 1974-02-04 ES ES422902A patent/ES422902A1/en not_active Expired
- 1974-02-06 IT IT20238/74A patent/IT1007261B/en active
- 1974-02-06 SE SE7401569A patent/SE386899B/en unknown
- 1974-02-07 AT AT96074*#A patent/AT332869B/en not_active IP Right Cessation
- 1974-02-08 BR BR946/74A patent/BR7400946D0/en unknown
- 1974-02-08 JP JP49015581A patent/JPS49112928A/ja active Pending
- 1974-02-11 FR FR7404454A patent/FR2217338B1/fr not_active Expired
- 1974-02-11 BE BE140751A patent/BE810844A/en unknown
- 1974-02-11 GB GB613674A patent/GB1456267A/en not_active Expired
- 1974-02-11 CA CA192,191A patent/CA1026342A/en not_active Expired
- 1974-02-12 IN IN290/CAL/1974A patent/IN140448B/en unknown
-
1975
- 1975-10-10 SU SU7502179003A patent/SU577993A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT1007261B (en) | 1976-10-30 |
| ATA96074A (en) | 1976-02-15 |
| CH593379B5 (en) | 1977-11-30 |
| DE2405063A1 (en) | 1974-08-15 |
| JPS49112928A (en) | 1974-10-28 |
| CA1026342A (en) | 1978-02-14 |
| AU6530974A (en) | 1975-08-07 |
| BE810844A (en) | 1974-08-12 |
| BR7400946D0 (en) | 1974-11-05 |
| SU577993A3 (en) | 1977-10-25 |
| IN140448B (en) | 1976-11-13 |
| FR2217338B1 (en) | 1977-06-10 |
| FR2217338A1 (en) | 1974-09-06 |
| AT332869B (en) | 1976-10-25 |
| GB1456267A (en) | 1976-11-24 |
| CH188173A4 (en) | 1977-03-31 |
| NL7401502A (en) | 1974-08-13 |
| SE386899B (en) | 1976-08-23 |
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