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

Patent ·
OSTI ID:868987
 [1];  [2]
  1. Danville, CA
  2. Livermore, CA
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A novel method 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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
United States of Americas as represented by United States (Washington, DC)
Patent Number(s):
US 5256799
OSTI ID:
868987
Country of Publication:
United States
Language:
English

References (3)

A new synthesis of methoxyindoles journal January 1966
Fluorescence and lasing properties of rhodamine dyes journal January 1991
A Facile Synthesis of 4-Hydroxy- and 4-Aminoindoles through Corresponding Indolines journal November 1989

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preparation
6-hydroxyindolines
novel
laser
dyes
method
synthesis
fluorescent
produced
therefrom
ring-constrained
indoline-based
rhodamine
absorption
emission
spectra
particularly
useful
dye
applications
dye laser
particularly useful
novel method
fluorescent dyes
laser dyes
laser applications
fluorescent dye
emission spectra
laser dye
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