ISOMERISATION OF ο-ALKENYL SUBSTITUTED CYCLOHEXANE-1,3-DIONE ENOL DERIVATES USING RHODIUM CATALYSIS. A PRACTICAL SYNTHESIS OF SUBSTITUTED RESORCINOLS

Article abstract of DOI:10.1016/S0040-4039(00)85728-7

Treatment of the ο-alkenyl substituted cyclohexane-1,3-dione enol derivates (1), (11), and (13) with rhodium trichloride trihydrate leads to the corresponding resorcinol derivates (2), (12), and (15) respectively.By contrast, the RhCl3.3H2O catalysed isomerisations of the related enol ethers (5) and (9) instead produce the dienones (6) and (10) respectively.