GB570365A - Process for the manufacture of adermine - Google Patents
Process for the manufacture of adermineInfo
- Publication number
- GB570365A GB570365A GB2656/43A GB265643A GB570365A GB 570365 A GB570365 A GB 570365A GB 2656/43 A GB2656/43 A GB 2656/43A GB 265643 A GB265643 A GB 265643A GB 570365 A GB570365 A GB 570365A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adermine
- diazotization
- hydrochloric acid
- silver nitrite
- manufacture
- 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
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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 ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/65—One oxygen atom attached in position 3 or 5
- C07D213/66—One oxygen atom attached in position 3 or 5 having in position 3 an oxygen atom and in each of the positions 4 and 5 a carbon atom bound to an oxygen, sulphur, or nitrogen atom, e.g. pyridoxal
- C07D213/67—2-Methyl-3-hydroxy-4,5-bis(hydroxy-methyl)pyridine, i.e. pyridoxine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Adermine (Vitamin B6) is prepared from 2-methyl - 3-carbalkoxyamino - 4 - phenoxymethyl-5-hydroxymethylpyridine by treatment with hydrochloric acid followed by diazotization and heating of the intermediate product so produced. The preferred compound yielding nitrous acid which is used in the diazotization is silver nitrite. In an example the parent material specified above is treated with 2.5 per cent aqueous hydrochloric acid in a pressure vessel at 180 DEG C. for several hours. Silver nitrite is added and the solution heated to 80 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH570365X | 1942-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB570365A true GB570365A (en) | 1945-07-04 |
Family
ID=4520870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2656/43A Expired GB570365A (en) | 1942-02-20 | 1943-02-17 | Process for the manufacture of adermine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB570365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008332A (en) * | 2016-06-15 | 2016-10-12 | 新发药业有限公司 | Method for preparing vitamin B6 from 2-methyl-2-cyclopentenone |
-
1943
- 1943-02-17 GB GB2656/43A patent/GB570365A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106008332A (en) * | 2016-06-15 | 2016-10-12 | 新发药业有限公司 | Method for preparing vitamin B6 from 2-methyl-2-cyclopentenone |
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