Photorearrangement of trans-1,1′:3,4-Diepoxy-1-methyl-2-tetralone, an α,β:α′,β′- diepoxyketone

Abstract

Irradiation of trans-l,l':3,4-diepoxy-1-methyl-2-tetralone (1) with a medium-pressure mercury lamp yielded 2,3-dihydroxy-1-naphthaldehyde (2), 2,4-dihydroxy-1-naphthaldehyde (3), and 3-(2'-hydroxyphenyl)-4H-pyran-4-one(4).