Trifluoroacetic acid → HCID 86692460, compound

Participants

Reaction Steps

To 8-(5-bromopyridin-2-yl)-1,4-dioxaspiro[4.5]decane-8-carbonitrile (3.4 g) described in Reference Example 82 was added trifluoroacetic acid (4.1 ml) at room temperature, and stirred at the same temperature for 22 hours. After completion of the reaction, the solvent and trifluoroacetic acid were evaporated. The obtained residue was purified with silica gel column chromatography (n-hexane:ethyl acetate) to give 1-(5-bromopyridin-2-yl)-4-oxocyclohexanecarbonitrile (2.78 g) as a white solid.

Provenance & Evidence