Sodium Hydroxide → HCID 18399615, compound

Participants

Reaction Conditions

Reaction Steps

26 mL of 0.6N sodium hydroxide was added to a solution of 3.82 g of Compound 1F in 174 mL of methanol and 87 mL of dioxane at 50° C. while stirring. The mixture was stirred at 50° C. for an additional 20 minutes, cooled to 20-25° C., then diluted with 280 mL of water, filtered and acidified with 1N hydrochloric acid to pH=1. The suspension of that formed precipitate gel was stirred at 60° C. for 2 hours, until a heavier filtrable solid was obtained. This solid was filtered and dried to yield 3.4 g of the title compound, which was suitable for use in the next reaction step without further purification. It was crystallized from ethanol to yield the analytical sample, melting at 282-283° C.

Provenance & Evidence