GB279506A - Manufacture of diacidyl-derivatives of naphthalene and acenaphthene - Google Patents
Manufacture of diacidyl-derivatives of naphthalene and acenaphtheneInfo
- Publication number
- GB279506A GB279506A GB28225/27A GB2822527A GB279506A GB 279506 A GB279506 A GB 279506A GB 28225/27 A GB28225/27 A GB 28225/27A GB 2822527 A GB2822527 A GB 2822527A GB 279506 A GB279506 A GB 279506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium chloride
- aluminium
- carbon disulphide
- monoacidyl
- dibenzoylnaphthalene
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/782—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic
- C07C49/788—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic with keto groups bound to a condensed ring system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
279,506. I. G. Farbenindustrie Akt.- Ges. Oct. 23, 1926, [Convention date]. Diacidyl derivatives of naphthalene and acenaphthene are prepared by treating the monoacidyl derivative with an aromatic or aliphatic acid choride in the presence of aluminium chloride. As starting material may be employed the aluminium chloride compound of the monoacidyl derivative obtained in the manufacture of the latter from the hydrocarbon. A diluent may be present. The products are useful intermediate for the preparation of vat dyestuffs. According to the examples (1) a-benzoylnaphthalene is heated with benzoyl chloride and aluminium chloride, the product decomposed with water and after washing with caustic soda, crystallised from benzene; 1 : 5-dibenzoylnaphthalene separates out, whilst from the mother liquor its isomers, mainly 1 : 8-dibenzoylnaphthalene, can be isolated; (2) the treatment of 5-benzoylacenaphthene; the reaction may be effected in carbon disulphide solution ; (3) diacetylacenaphthene is prepared by slowly adding a carbon disulphide solution of aluminium chlorideacetyl chloride compound to the aluminium chloride compound of 5-acetylacenaphthene and heating with more aluminium chloride; the product is decomposed with water, the carbon disulphide steam distilled away from the residue crystallised from alcohol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE279506X | 1926-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB279506A true GB279506A (en) | 1928-04-12 |
Family
ID=6028736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28225/27A Expired GB279506A (en) | 1926-10-23 | 1927-10-24 | Manufacture of diacidyl-derivatives of naphthalene and acenaphthene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB279506A (en) |
-
1927
- 1927-10-24 GB GB28225/27A patent/GB279506A/en not_active Expired
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