GB260998A - The manufacture of new dyestuffs of the anthanthrone series - Google Patents
The manufacture of new dyestuffs of the anthanthrone seriesInfo
- Publication number
- GB260998A GB260998A GB27587/26A GB2758726A GB260998A GB 260998 A GB260998 A GB 260998A GB 27587/26 A GB27587/26 A GB 27587/26A GB 2758726 A GB2758726 A GB 2758726A GB 260998 A GB260998 A GB 260998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iodine
- bromine
- chlorine
- halogen
- nitrobenzene
- 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
- 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
- C09B3/60—Anthanthrones
- C09B3/64—Preparation from starting materials already containing the anthanthrone nucleus
- C09B3/66—Preparation from starting materials already containing the anthanthrone nucleus by halogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Abstract
260,998. Cassella & Co. Ges., L. Nov. 7, 1925, [Convention date]. Halogen derivatives of anthanthrone.-Anthanthrone is treated with halogenating agents under mild conditions at moderate temperatures and preferably in presence of a solvent or diluent and a halogen carrier such as iodine. The products dye cotton from the vat in orange shades. The following halogenating agents are specified : Chlorine in trichlorbenzene, chlorine in sulphuryl chloride in presence of iodine, bromine in sulphuric acid in presence of iodine, bromine in nitrobenzene with or without iodine. The Specification as open to inspection under Sect. 91 (3) (a) states that the most valuable products are those containing two atoms of halogen, that the diluent may be of organic or inorganic nature, and that antimony pentachloride, ferric chloride, or iodine trichloride may be used as halogen carriers. Examples are also given in which halogenation is effected by the following agents : Chlorine ;n nitrobenzene, sulphuryl chloride in nitrobenzene in presence of iodine, chlorine or bromine vapour in presence of iodine or ferric chloride, bromine in oleum or a chlorinated benzene in presence of iodine, an excess of liquid bromine with or without iodine. The preparation of a chlor-brom-derivative by first brominating and then chlorinating in oleum in presence of iodine is also described. This subject-matter does not appear in the Specification as accepted. Specification 280,787 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC37412D DE458598C (en) | 1925-11-07 | 1925-11-07 | Process for the production of orange dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB260998A true GB260998A (en) | 1928-01-19 |
Family
ID=7022794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27587/26A Expired GB260998A (en) | 1925-11-07 | 1926-11-03 | The manufacture of new dyestuffs of the anthanthrone series |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE458598C (en) |
GB (1) | GB260998A (en) |
-
1925
- 1925-11-07 DE DEC37412D patent/DE458598C/en not_active Expired
-
1926
- 1926-11-03 GB GB27587/26A patent/GB260998A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE458598C (en) | 1928-04-14 |
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