Process for (1H)-isoindolin-1-one-3-carboxylic acid

Details Process for (1H)-isoindolin-1-one-3-carboxylic acid Process for (1H)-isoindolin-1-one-3-carboxylic acid

1986-08-29

1988-03-08

Ceperley, Mary E.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20946

Patent

active

047300566

ABSTRACT:
A process for preparing [1H]-isoindolin-1-one-3-carboxylic acid comprising the steps of (1) reacting phthalaldehydic acid in an alkanol with ammonia, (2) contacting the resulting solution with an alkali metal cyanide, (3) removing the alkanol, (4) adjusting the pH to 1.0, (5) heating the resulting reaction mixture until product formation is substantially complete and isolating the product.

REFERENCES:
L. Kametani et al., Chem. Abstracts, vol. 69, No. 106401w (1968).
L. Kametani et al, Chem. Abstracts, vol. 71, No. 30191w (1969).
J. Prakt. Chem., vol. 146, 307 (1936).

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