Preparation of certain m-aminophenols and the use thereof for preparation of laser dyes
Patent
·
OSTI ID:7146967
Methods are provided for making certain m-aminophenols using a sulfonation/alkali fusion procedure. The aminophenols are key intermediates in the synthesis of dyes, particularly efficient, stable dyes for laser application. Preparations of some rhodamine and phenoxazone dyes from the m-aminophenols are described.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4622400
- OSTI ID:
- 7146967
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ACID SULFATES
ALKALINE EARTH METAL COMPOUNDS
ALKYL RADICALS
AROMATICS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DYE LASERS
DYES
ELEMENTS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INORGANIC ACIDS
LASER MATERIALS
LASERS
LIQUID LASERS
MATERIALS
MEDIUM TEMPERATURE
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
RADICALS
SULFATES
SULFONATION
SULFUR COMPOUNDS
SULFURIC ACID
SYNTHESIS
420300* -- Engineering-- Lasers-- (-1989)
ACID SULFATES
ALKALINE EARTH METAL COMPOUNDS
ALKYL RADICALS
AROMATICS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DYE LASERS
DYES
ELEMENTS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INORGANIC ACIDS
LASER MATERIALS
LASERS
LIQUID LASERS
MATERIALS
MEDIUM TEMPERATURE
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
RADICALS
SULFATES
SULFONATION
SULFUR COMPOUNDS
SULFURIC ACID
SYNTHESIS