Lithium Hydroxide → HCID 69371571, compound

Participants

Reaction Steps

A solution of the product from Step E (3.55 g, 8.9 mmol) in 250 mL of 3:1:1 tetrahydrofuran/methanol/1N aqueous lithium hydroxide solution (50 mL, 50 mmol) was stirred at room temperature for 15 h then concentrated and acidified with 200 mL of 10% aqueous hydrochloric acid. The resultant mixture was then extracted with three 150-mL portions of ethyl acetate, the organic phases combined and washed sequentially with 5% hydrochloric acid and saturated aqueous brine (100 mL each). The organic phase was dried over magnesium sulfate, filtered, and evaporated in vacuo to yield the acid as a colorless foamy solid that was used without further purification. LC/MS 385.2 (M+1).

Provenance & Evidence