Sodium Hydroxide → HCID 67130532, compound

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Reaction Steps

To methanol (290 mL) solution of the compound obtained in Example 5 (7.1 g) was added dropwise 1 mol/L of an aqueous sodium hydroxide solution (29 mL) at room temperature. The mixture was allowed to stir for 29 hours, and thereafter to the residue obtained by distilling off the solvent under a reduced pressure was added water. The solution was made acidic with dilute hydrochloric acid, and the crystals precipitated were filtered, to give the captioned compound (5.4 g, 79%).

Provenance & Evidence