3-(Indol-3-yl)dehydronaphthalide hydrochlorides

Details 3-(Indol-3-yl)dehydronaphthalide hydrochlorides 3-(Indol-3-yl)dehydronaphthalide hydrochlorides

1973-12-03

1976-01-20

Gotts, Lewis

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26032612R, 26032614R, 26032615, 96 29D, C07D20918, C07D20920

Patent

active

039338541

ABSTRACT:
This invention is concerned with a novel class of protonated compounds, namely, 3-(indol-3-yl)dehydronaphthalide hydrochlorides, with their synthesis by the reaction of a 3-(indol-3-yl)naphthalide and a high-potential quinone in an inert anhydrous aprotic solvent in the presence of a carboxylic acid catalyst, and with the synthesis of indole naphthalide indicator dyes by reacting the said dehydronaphthalide hydrochlorides and an indole in an aromatic hydrocarbon solvent in the presence of a carboxylic acid catalyst.

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