FR2371413A1 - Procede de preparation de la benzanthrone - Google Patents
Procede de preparation de la benzanthroneInfo
- Publication number
- FR2371413A1 FR2371413A1 FR7734482A FR7734482A FR2371413A1 FR 2371413 A1 FR2371413 A1 FR 2371413A1 FR 7734482 A FR7734482 A FR 7734482A FR 7734482 A FR7734482 A FR 7734482A FR 2371413 A1 FR2371413 A1 FR 2371413A1
- Authority
- FR
- France
- Prior art keywords
- benzanthrone
- preparation process
- preparation
- acrolein
- hydroanthraquinone
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/657—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings
- C07C49/665—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings a keto group being part of a condensed ring system
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/02—Benzathrones
- C09B3/04—Preparation by synthesis of the nucleus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
a. Procédé de préparation de la benzanthrone. Ce procédé consiste à faire réagir une hydroanthraquinone possédant un noyau 1,4-dihydro avec l'acroléine ou un précurseur de l'acroléine en présence d'un catalyseur de déshydratation. c) La benzanthrone sert de matière pour la préparation des colorants et pigments d'lndanthrène.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13797476A JPS5382764A (en) | 1976-11-17 | 1976-11-17 | Preparation of benzanthrone |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2371413A1 true FR2371413A1 (fr) | 1978-06-16 |
FR2371413B1 FR2371413B1 (fr) | 1980-06-06 |
Family
ID=15211082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7734482A Granted FR2371413A1 (fr) | 1976-11-17 | 1977-11-16 | Procede de preparation de la benzanthrone |
Country Status (7)
Country | Link |
---|---|
US (1) | US4127595A (fr) |
JP (1) | JPS5382764A (fr) |
CH (1) | CH634028A5 (fr) |
DE (1) | DE2751049C3 (fr) |
FR (1) | FR2371413A1 (fr) |
GB (1) | GB1548082A (fr) |
IT (1) | IT1089301B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005757A1 (fr) * | 1978-05-26 | 1979-12-12 | Bayer Ag | Procédé de préparation de benzanthrones |
EP0134753A1 (fr) * | 1983-07-12 | 1985-03-20 | Ciba-Geigy Ag | Procédé de préparation de benzanthrone |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311565A (en) * | 1979-05-30 | 1982-01-19 | Ciba-Geigy Ag | Electrochemical process for the production of benzanthrone |
DE102005012049A1 (de) * | 2005-03-16 | 2006-09-28 | Cognis Ip Management Gmbh | Verfahren zur Dehydratisierung von Fettalkoholen |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR973154A (fr) * | 1941-06-27 | 1951-02-08 | Procédé de préparation de la benzanthrone |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE482839C (de) * | 1925-10-28 | 1929-09-23 | I G Farbenindustrie Akt Ges | Verfahren zur Darstellung von Bz-2-Methylbenzanthronen |
US1929866A (en) * | 1929-01-23 | 1933-10-10 | Scottish Dyes Ltd | Production of sulphuric esters of anthrahydroquinone and its derivatives |
DE720467C (de) * | 1939-03-30 | 1942-05-07 | Ig Farbenindustrie Ag | Verfahren zur Herstellung von Benzanthronen |
US2495229A (en) * | 1947-03-13 | 1950-01-24 | Buffalo Electro Chem Co | Production of tetrahydroanthraquinones |
-
1976
- 1976-11-17 JP JP13797476A patent/JPS5382764A/ja active Granted
-
1977
- 1977-10-25 US US05/845,379 patent/US4127595A/en not_active Expired - Lifetime
- 1977-11-01 GB GB45481/77A patent/GB1548082A/en not_active Expired
- 1977-11-15 DE DE2751049A patent/DE2751049C3/de not_active Expired
- 1977-11-15 IT IT29660/77A patent/IT1089301B/it active
- 1977-11-16 CH CH1402277A patent/CH634028A5/de not_active IP Right Cessation
- 1977-11-16 FR FR7734482A patent/FR2371413A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR973154A (fr) * | 1941-06-27 | 1951-02-08 | Procédé de préparation de la benzanthrone |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0005757A1 (fr) * | 1978-05-26 | 1979-12-12 | Bayer Ag | Procédé de préparation de benzanthrones |
US4296043A (en) * | 1978-05-26 | 1981-10-20 | Bayer Aktiengesellschaft | Process for the preparation of benzanthrones |
EP0134753A1 (fr) * | 1983-07-12 | 1985-03-20 | Ciba-Geigy Ag | Procédé de préparation de benzanthrone |
Also Published As
Publication number | Publication date |
---|---|
IT1089301B (it) | 1985-06-18 |
GB1548082A (en) | 1979-07-04 |
US4127595A (en) | 1978-11-28 |
DE2751049A1 (de) | 1978-05-24 |
FR2371413B1 (fr) | 1980-06-06 |
CH634028A5 (de) | 1983-01-14 |
JPS5534133B2 (fr) | 1980-09-04 |
JPS5382764A (en) | 1978-07-21 |
DE2751049B2 (de) | 1981-07-09 |
DE2751049C3 (de) | 1982-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |