CH205779A - Process for the production of 3,6-dioxy-diphenylene oxide. - Google Patents
Process for the production of 3,6-dioxy-diphenylene oxide.Info
- Publication number
- CH205779A CH205779A CH205779DA CH205779A CH 205779 A CH205779 A CH 205779A CH 205779D A CH205779D A CH 205779DA CH 205779 A CH205779 A CH 205779A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dioxy
- diphenylene oxide
- oxide
- dioxydiphenyl
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- GBOUQGUQUUPGLO-UHFFFAOYSA-N 2-chloro-5-methoxyaniline Chemical compound COC1=CC=C(Cl)C(N)=C1 GBOUQGUQUUPGLO-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 3,6-Diogy-diphenylenoayd. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Herstellung von 3,6-Dioxy-diphenylenoxyd, welches dadurch gekennzeichnet ist, dass man 5'-1llethoxy-2'- halogen-2,5-dioxydiphenyl mit einem alkalisch wirkenden Mittel bei höherer Temperatur be handelt.
Die so erhaltene neue Verbindung stellt ein wertvolles Zwischenprodukt zur Herstel lung von Farbstoffen dar. <I>Beispiel:</I> 100 Gewichtsteile 5'-Methoxy-2'-chlor-2,5- dioxydiphenyl vom F. 133-1340 C (erhält lich durch Reduktion des durch Umsetzung von dianotiertem 3-Amino-4-chlor-l-methoxy- benzol mit Benzochinon entstehenden 5'- Methoxy-2'-chlorphenylbet)zochinons vom F.
131-132 C) werden mit 200 Gewichtsteilen Natriumacetat, 20 Gewichtsteilen Natrium- hydrosulfit und 600 Gewichtsteilen Ätzkali verschmolzen und zur Beendigung der Reak tion auf 260-280' C nachgeheizt. Unter diesen Bedingungen wird die Methoxygruppe verseift, und man erhält nach der Aufarbei tung das 3,6-Dioxy-diphenylenoxyd.
Die erhaltene Verbindung ist in verdünn ten Alkalien farblos löslich und kristallisiert in farblosen Nadeln vom F. 243-2441 C.
Process for the preparation of 3,6-diogy-diphenylenoayd. The subject of the present Zusatzpaten tes is a process for the production of 3,6-dioxydiphenylene oxide, which is characterized in that 5'-1llethoxy-2'-halogen-2,5-dioxydiphenyl be with an alkaline agent at a higher temperature acts.
The new compound obtained in this way is a valuable intermediate for the production of dyes. <I> Example: </I> 100 parts by weight of 5'-methoxy-2'-chloro-2,5-dioxydiphenyl with a melting point of 133-1340 C ( obtainable by reduction of the 5'-methoxy-2'-chlorophenylbeta) zoquinone produced by the reaction of dianotized 3-amino-4-chloro-1-methoxybenzene with benzoquinone from F.
131-132 C) are fused with 200 parts by weight of sodium acetate, 20 parts by weight of sodium hydrosulfite and 600 parts by weight of caustic potash and reheated to 260-280 ° C to terminate the reaction. The methoxy group is saponified under these conditions and the 3,6-dioxy-diphenylene oxide is obtained after work-up.
The compound obtained is colorlessly soluble in dilute alkalis and crystallizes in colorless needles of F. 243-2441 C.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE205779X | 1936-01-22 | ||
| CH199182T | 1937-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH205779A true CH205779A (en) | 1939-06-30 |
Family
ID=25723203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH205779D CH205779A (en) | 1936-01-22 | 1937-01-14 | Process for the production of 3,6-dioxy-diphenylene oxide. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH205779A (en) |
-
1937
- 1937-01-14 CH CH205779D patent/CH205779A/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |