Bromine → HCID 14520030, compound

Participants

Reaction Steps

Bromine (3.22 mL, 62.5 mmol) was dissolved in 60 mL of glacial acetic acid and added, over a 20 minute period, to a solution of 6-methoxy-2-(phenylmethoxy)-1-naphthalenecarboxaldehyde (17.4 g, 59.5 mmol, described in Example 5) in 270 mL of glacial acetic acid at 45° C. The resulting suspension was allowed to cool for 1 hour, then the precipitate was collected by filtration and washed thoroughly with absolute ethanol. The solid was suspended in 170 mL of toluene and concentrated by distillation at ambient pressure until about 30 mL remained then allowed to stand at room temperature overnight. The precipitate which formed upon cooling was collected by filtration and washed with hexane to give 18.14 g of the title compound as a yellow powder, m.p. 214°-220° C.

Provenance & Evidence