Lithium Hydroxide → 3-[(2-chloro-benzoyl)amino]-2,3-dihydro-1H-indene-5-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

LiOH (5 equiv.) was added to a suspension of 3-[(2-chloro-benzoyl)amino]-2,3-dihydro-1H-indene-5-carboxylic acid methyl ester (B-01) (11.75 mmol) in methanol (40 ml), tetrahydrofuran (40 ml) and water (30 ml) and the reaction mixture was stirred at 25° C. overnight. Methanol and THF were distilled off, the aqueous residue was acidified with 1N HCl and the mixture was filtered. The white solid obtained was taken up in a mixture of 350 ml of acetone and 50 ml of methanol and the mixture was stirred for 1 h. After filtration, the white solid was dried in vacuo to obtain 3-[(2-chloro-benzoyl)amino]-2,3-dihydro-1H-indene-5-carboxylic acid (E-01). Yield: 75%

Provenance & Evidence