" The following procedures were used in the preparations: I. To 3.75 g.(0.02 mole) of 2- methoxy-1-naphthaldehyde [N. Ph. Buu-Hoi and D. Lavit, J. Chem. Soc, 2776 (1955)] in 25 mi of hot methanol was added a warm aqueous solution of the appropriate hydrazine. Glacial acetic acid (10 nil.) was added The reaction mixture was~ arnied to boiling and then cooled in an ice bath. The product mas collected on a filter and recrystallized. 11. To a ...