Peri fluoro steric effects: syntheses and comparative acid-catalyzed isomerization of the 8-, 9-, and 11-fluoro-1,2,3,4-tetrahydro-7,12-dimethylbenz[a]anthracenes to exo methylene tautomers
Peri fluoro steric effects: syntheses and comparative acid-catalyzed isomerization of the 8-, 9-, and 11-fluoro-1,2,3,4-tetrahydro-7,12-dimethylbenz[a]anthracenes to exo methylene tautomers