Jc. Blazejewski et al., THE TORGOV REACTION AS A SHORT-CUT TO KAMETANI SYNTHESIS OF (PLUS-OR-MINUS)14-ALPHA-HYDROXYESTRONE AND DERIVATIVES, Tetrahedron letters, 35(13), 1994, pp. 2021-2022
A key intermediate in Kametani's synthesis of 14alpha-hydroxyestrone i
s prepared in two steps via a Torgov like reaction of 2-methylcyclopen
tane-1,3-dione with a vinylbenzocyclobutenyl alcohol.