Dimethylformamide dimethyl acetal → HCID 178496951, compound

Participants

Reaction Steps

A suspension of 1.2 g (5.2 mmol) of methyl 3-amino-7-methoxy-2-naphthoate in 30 mL of dimethylformamide dimethylacetal is refluxed for 2.5 hours. The mixture is cooled to room temperature. The resulting precipitate is collected by filtration and washed with ether. After drying in vacuo, this yields 1.28 g (85.9%) of methyl 3-{[(E)-(dimethylamino)methylidene]amino}-7-methoxy-2-naphthoate as a light yellow solid, mp 160-162° C.

Provenance & Evidence