Abstract:

Photolysis of 2-methyl-naphthoquinone diazide produced 2-methyl-4-spiro (2′-tetrahydro-pyran)naphthalenone (3) and 2-methyl-4-(2′-tetrah ydrofur an)naphthol (4) in tetrhydrofuran, and 2-methyl-4-spiro［7′-(1 ′4′-dioxah eptane)］naphthalenone (5), 2-methyl-4-(2′-dioxanyl)naphthol (6) and bis(2 -methyl-1,4-naphthalene)22-crown-6 (7) in dioxane. The structur es of these  compounds were elucidated by 2D NMR spectroscopy and their ¹H and ¹³C NMR spectra were totally assigned. 

Key words: naphthoquinone diazide, photolysis, tetrah ydrofuran, dioxane, crown ether