Preparation of 6-hydroxyindolines and their use for preparation

Details Preparation of 6-hydroxyindolines and their use for preparation Preparation of 6-hydroxyindolines and their use for preparation

1992-07-14

1993-10-26

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548508, C07D21520

Patent

active

052567990

ABSTRACT:
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.

REFERENCES:
patent: 3888818 (1975-06-01), Deblandre
patent: 3932415 (1976-01-01), Reynolds
patent: 4622400 (1986-11-01), Hammond
Hideo Tanaka, et al., "A Facile Synthesis of 4-Hydroxy-and 4-Aminoindoles Through Corresponding Indolines", The Chemical Society of Japan, 1989; vol. 62, No. 11, pp. 3742-3744.
R. R. Hunt, et al., "A New Synthesis of Methoxyindoles", J. Chem. Soc. (C), 1966, pp. 344-345.
Jutta Arden, et al., "Fluorescence and Lasing Properties of Rhodamine Dyes", Journal of Luminescence 48 & 49 (1991) pp. 352-358.
1990 American Chemical Society Database Search listing 10 references, 15 pages.

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