CH130622A - Process for the preparation of 1-ethoxy-3.4.8.9-dibenzpyrene-5.10-quinone. - Google Patents
Process for the preparation of 1-ethoxy-3.4.8.9-dibenzpyrene-5.10-quinone.Info
- Publication number
- CH130622A CH130622A CH130622DA CH130622A CH 130622 A CH130622 A CH 130622A CH 130622D A CH130622D A CH 130622DA CH 130622 A CH130622 A CH 130622A
- Authority
- CH
- Switzerland
- Prior art keywords
- dibenzpyrene
- quinone
- ethoxy
- preparation
- yellow
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- VRZVPALEJCLXPR-UHFFFAOYSA-N ethyl 4-methylbenzenesulfonate Chemical compound CCOS(=O)(=O)C1=CC=C(C)C=C1 VRZVPALEJCLXPR-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- COEZWFYORILMOM-UHFFFAOYSA-N sodium 4-[(2,4-dihydroxyphenyl)diazenyl]benzenesulfonic acid Chemical compound [Na+].OC1=CC(O)=CC=C1N=NC1=CC=C(S(O)(=O)=O)C=C1 COEZWFYORILMOM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von 1-Äthoxy-3.4.8.9-dibenzpyren-h.10-chinon. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung von 1-Äthoxy- 3.4.8.9-dibenzpyren-5.10-chinon, welches dadurch gekennzeichnet ist, dass man 1. Oxy- 3.4.8.9-dibenzpyren-5.10-chinon mit äthy- lierenden Mitteln behandelt.
Beispiel: 10 Gewichtsteile 1-Oxy-3.4.8.9-dibenz- pyrenchinon werden mit 100 Gewichtsteilen Nitrobenzol, 5 Gewichtsteilen Soda und 10 Ge wichtsteilen p-Toluolsulfosäureäthylestet- 6 Stunden auf 180 erhitzt und siedend heiss fil triert. Beim Erkalten scheidet sich das 1 Ätlioxy-3.4.8.9-dibenzpyrenchinon in gold gelben Kristallen aus. Diese werden abge saugt, mit Alkohol gewaschen und getrocknet. Das Produkt ist nur in hochsiedenden orga nischen Lösungsmitteln mit-gelbbrauner Farbe löslich, in konzentrierter Schwefelsäure löst es sich mit bläulich roter Farbe.
Aus der kirschroten Hydrosulfitküpe wird Baumwolle in echten gelben Tönen angefärbt.
Process for the preparation of 1-ethoxy-3.4.8.9-dibenzpyrene-h.10-quinone. The subject of this additional patent is a process for the preparation of 1-ethoxy-3.4.8.9-dibenzpyrene-5.10-quinone, which is characterized in that 1. oxy-3.4.8.9-dibenzpyrene-5.10-quinone is treated with etherifying agents.
Example: 10 parts by weight of 1-oxy-3.4.8.9-dibenzpyrenquinone are heated to 180 for 6 hours and boiling hot, with 100 parts by weight of nitrobenzene, 5 parts by weight of soda and 10 parts by weight of p-toluene sulfonic acid ethyl ester. When cooling, the 1 Ätlioxy-3.4.8.9-dibenzpyrenquinone separates out in gold-yellow crystals. These are filtered off with suction, washed with alcohol and dried. The product is only soluble in high-boiling organic solvents with a yellow-brown color; in concentrated sulfuric acid it dissolves with a bluish-red color.
Cotton is dyed in real yellow tones from the cherry-red hydrosulfite vat.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE130622X | 1925-12-30 | ||
| CH128736T | 1926-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH130622A true CH130622A (en) | 1928-12-15 |
Family
ID=25711151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH130622D CH130622A (en) | 1925-12-30 | 1926-12-28 | Process for the preparation of 1-ethoxy-3.4.8.9-dibenzpyrene-5.10-quinone. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH130622A (en) |
-
1926
- 1926-12-28 CH CH130622D patent/CH130622A/en unknown
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