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Preparation of 6-hydroxyindolines and their use for preparation of novel laser dyes

Patent ·
OSTI ID:5445110
;

A novel method is described for the synthesis of 6-hydroxyindolines and new fluorescent dyes produced therefrom, which dyes are ring-constrained indoline-based rhodamine class dyes. These dyes have absorption and emission spectra which make them particularly useful in certain dye laser applications.

DOE Contract Number:
W-7405-ENG-48
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
A; US 5256799
Application Number:
PPN: US 7-913084
OSTI ID:
5445110
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
42 ENGINEERING
426002 -- Engineering-- Lasers & Masers-- (1990-)
ABSORPTION SPECTRA
AMINES
CARBOXYLIC ACIDS
CHEMICAL PREPARATION
DYE LASERS
DYES
EMISSION SPECTRA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
LASERS
LIQUID LASERS
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
REAGENTS
RHODAMINES
SPECTRA
SYNTHESIS