Water → HCID 18518693, compound

Participants

Reaction Steps

KOH (1.2 g; 21 mmol) and water (25 mL) were added to a solution of 4-hydroxy-8-chloro-6-methoxychroman-4-yl-carboxylic amide (0.39 g; 1.5 mmol; from step (iv) above) in i-PrOH (25 mL). The reaction mixture was refluxed overnight, i-PrOH was evaporated and the water solution was washed with ether. The reaction mixture was acidified with HCl (2M) and extracted with ethyl acetate. The organic layer was dried (Na2SO4) and evaporated. Yield: 0.38 mg (97%).

Provenance & Evidence