DE143725C - - Google Patents
Info
- Publication number
- DE143725C DE143725C DE1902143725D DE143725DA DE143725C DE 143725 C DE143725 C DE 143725C DE 1902143725 D DE1902143725 D DE 1902143725D DE 143725D A DE143725D A DE 143725DA DE 143725 C DE143725 C DE 143725C
- Authority
- DE
- Germany
- Prior art keywords
- thioxanthine
- xanthine
- parts
- solution
- hydrochloric acid
- 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 - Lifetime
Links
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 claims description 20
- PQJUJGAVDBINPI-UHFFFAOYSA-N 9H-thioxanthene Chemical compound C1=CC=C2CC3=CC=CC=C3SC2=C1 PQJUJGAVDBINPI-UHFFFAOYSA-N 0.000 claims description 12
- 229940075420 xanthine Drugs 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 2
- SUTWWGQBVXLMGH-UHFFFAOYSA-N 3,7-dihydropurine-2,6-dione;hydrochloride Chemical compound Cl.O=C1NC(=O)NC2=C1NC=N2 SUTWWGQBVXLMGH-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT16245D AT16245B (de) | 1902-06-21 | 1903-08-19 | Verfahren zur Darstellung von Xanthin. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE143725C true DE143725C (enrdf_load_stackoverflow) |
Family
ID=411205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1902143725D Expired - Lifetime DE143725C (enrdf_load_stackoverflow) | 1902-06-21 | 1902-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE143725C (enrdf_load_stackoverflow) |
-
1902
- 1902-06-21 DE DE1902143725D patent/DE143725C/de not_active Expired - Lifetime
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