4-ethoxymethylene-2-(1)-naphthyl-5(4H)-oxazolone → [1-(2-Naphthalen-1-yl-5-oxo-oxazol-4-ylidenemethyl)-piperidin-4-yl]-carbamic acid tert-butyl ester

Participants

Reaction Steps

To a solution of 4-ethoxymethylene-2-naphthalen-1-yl-4H-oxazol-5-one (6.30 g, 23.7 mmol) in tetrahydrofuran, piperidin-4-yl-carbamic acid tert-butyl ester (4.70 g, 23.7 mmol) was added, and the mixture was stirred at room temperature for 24 h. The reaction mixture was concentrated under reduced pressure to yield [1-(2-naphthalen-1-yl-5-oxo-oxazol-4-ylidenemethyl)-piperidin-4-yl]-carbamic acid tert-butyl ester.

Provenance & Evidence