Formaldehyde → HCID 68676574, compound

Participants

Reaction Steps

A solution of 250 mg of 2-chloro-5,6,7,8-tetrahydro-[1,6]naphthyridine (U.S. Pat. No. 6,169,093) in methylene chloride (6.1 mL) was treated with 0.148 mL of a 37% formalin solution, followed by 0.388 g of sodium triacetoxyborohydride. The reaction mixture was stirred at room temperature for 60 h and quenched by the addition of 2N sodium hydroxide (6 mL). After stirring for one h, the mixture was diluted with water and extracted with methylene chloride (2×). The organic layers were dried over sodium sulfate, filtered, and concentrated. Purification of the residue using silica gel chromatography provided N-methylchloronaphthyridine.

Provenance & Evidence