Claims
- 1. A process for the manufacture of a 3-aminophenol which comprises dehydrogenating, at a temperature of from 150.degree. to 300.degree. C., a pressure of up to 20 atmospheres and in the liquid phase, a 3-aminocyclohexenone which is a primary or secondary amine.
- 2. The process defined in claim 1, wherein the 3-aminocyclohexenone is heated in the presence of a dehydrogenation catalyst selected from the group consisting of ruthenium, rhodium, osmium, iridium, platinum, copper, silver, gold, iron, cobalt, palladium and nickel.
- 3. The process defined in claim 1, wherein the 3-aminocyclohexenone is a secondary amine.
- 4. The process defined in claim 1, wherein the 3-aminocyclohexenone is a primary amine.
- 5. The process defined in claim 4, wherein 3-aminocyclohex-2-enone is dehydrogenated.
- 6. The process defined in claim 4, wherein the dehydrogenation occurs at a pressure of up to one atmosphere.
- 7. The process defined in claim 4, wherein the dehydrogenation occurs in the presence of a solvent.
- 8. The process defined in claim 7, wherein triethylene glycol diethyl ether or diethylene glycol diethyl ether is the solvent.
- 9. The compound N,N'-bis-(3-hydroxyphenyl)-o-dianisidine.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2402695 |
Jan 1974 |
DEX |
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Parent Case Info
This is a continuation-in-part of abandoned application Ser. No. 542,423 filed Jan. 20, 1975.
US Referenced Citations (3)
Non-Patent Literature Citations (2)
Entry |
Zymalkowski, et al. "Synthesis of bz-tetrahydroquinolines" in Chem. Abs. 15395g, 1960. |
Sutter et al. "Monoethers of 1,2-dihydroxybenzene" in _Chem. Abs. vol. 74, 1971, 3407g. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
542423 |
Jan 1975 |
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