GB771180A - 1,4-naphthoquinone addition product - Google Patents
1,4-naphthoquinone addition productInfo
- Publication number
- GB771180A GB771180A GB24285/55A GB2428555A GB771180A GB 771180 A GB771180 A GB 771180A GB 24285/55 A GB24285/55 A GB 24285/55A GB 2428555 A GB2428555 A GB 2428555A GB 771180 A GB771180 A GB 771180A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bisulphite
- naphthoquinone
- addition product
- methyl
- reaction
- 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
- C07C50/00—Quinones
- C07C50/10—Quinones the quinoid structure being part of a condensed ring system containing two rings
- C07C50/12—Naphthoquinones, i.e. C10H6O2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A bisulphite addition product of 2-methyl-1,4-naphthoquinone is obtained by reacting a salt yielding a bisulphite ion with 2-methyl-1,4-naphthoquinone in a reaction solvent comprising water and isopropyl alcohol at a temperature sufficient to completely solubilize the bisulphite salt and the said naphthoquinone, thereafter cooling the reaction mixture to at least room temperature, adding to the reaction mixture a volume of isopropyl alcohol sufficient to precipitate the bisulphite addition product of 2-methyl-1,4-naphthoquinone, and recovering the said bisulphite addition product. The reaction may be effected between 50 DEG and 60 DEG C. As bisulphite salts there may be used sodium bisulphite, sodium metabisulphite, potassium bisulphite, ammonium bisulphite, di-n-butylamine bisulphite, methylamine bisulphite, trimethylamine bisulphite, piperidine bisulphite, and diethylamine bisulphite.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US771180XA | 1954-09-16 | 1954-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB771180A true GB771180A (en) | 1957-03-27 |
Family
ID=22136166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24285/55A Expired GB771180A (en) | 1954-09-16 | 1955-08-23 | 1,4-naphthoquinone addition product |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB771180A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509207A (en) * | 1966-01-20 | 1970-04-28 | Om Lab Sa | Therapeutically active derivatives of p-dihydroxybenzene |
| EP0183194A2 (en) * | 1984-11-28 | 1986-06-04 | BASF Aktiengesellschaft | Menadioncholine-bisulfite adduct and process for its preparation |
-
1955
- 1955-08-23 GB GB24285/55A patent/GB771180A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509207A (en) * | 1966-01-20 | 1970-04-28 | Om Lab Sa | Therapeutically active derivatives of p-dihydroxybenzene |
| EP0183194A2 (en) * | 1984-11-28 | 1986-06-04 | BASF Aktiengesellschaft | Menadioncholine-bisulfite adduct and process for its preparation |
| EP0183194A3 (en) * | 1984-11-28 | 1986-07-30 | Basf Aktiengesellschaft | Menadioncholine-bisulfite adduct and process for its preparation |
| US4735969A (en) * | 1984-11-28 | 1988-04-05 | Basf Aktiengesellschaft | Menadione choline bisulfite adduct, its preparation and antihemorrhagic compositions |
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