Ethanol → HCID 131710909, compound

Participants

Reaction Steps

A mixture comprising 8.0 g 6-fluoro-α-tetralone, 5.3 g of dimethylamine hydrochloride, 2.0 g paraformaldehyde, and 10 ml 95% ethanol containing 0.1 ml concentrated hydrogen chloride is heated on a steam bath for 1.5 hours. The reaction mixture soon because homogeneous and the paraformaldehyde dissolves. The warm solution (bright yellow) is transferred to a widemouthed flask and is quickly diluted by the addition of acetone (100 ml). Cooling this solution in the freezer for 16 hours produced a crystalline mass of white plates that is collected and washed with additional acetone. After drying this material in vacuo, the crystalline title compound weighs 10.1 g (80%) melting point 152°-153° C.

Provenance & Evidence