Sodium Hydroxide → HCID 86748115, compound

Participants

Reaction Conditions

Reaction Steps

(Z)-alpha-(methoxyimino)-5-[2-(2-naphthalenyloxy)ethoxy]-2-thiopheneacetic acid ethyl ester (0.2 g) in methanol (2 mL) and tetrahydrofuran (2 mL) was treated with 3N sodium hydroxide (0.5 mL) and the stirred mixture was heated at 50° C. for 30 minutes. After the solvents were removed in vacuo, the concentrate was diluted with water (10 mL), acidified with 1N hydrochloric acid (3 mL) and extracted with dichloromethane (2×10 mL). The combined organic layers were washed with brine, dried (MgSO4) and evaporated. The resulting solid was crystallized from dichloromethane-hexane to provide 0.157 g of (Z)-alpha-(methoxyimino)-5-[2-(2-naphthalenyloxy)ethoxy]-2-thiopheneacetic acid as its hernihydrate, mp 118°-120° C.

Provenance & Evidence