1: 8 percent Chromat. / AlCl3 / 7 h / 50 - 55 °C 2: 1.) SbF3, SbCl5, 2.) AlCl3, acetyl chloride / 1.) vacuum 73 torr, 100 - 120 deg C, 5 h, 2.) 45 deg C, 4 h View Scheme

1: 58 percent Chromat. / PCl5 / 8 h / 185 °C 2: 1.) SbF3, SbCl5, 2.) AlCl3, acetyl chloride / 1.) vacuum 73 torr, 100 - 120 deg C, 5 h, 2.) 45 deg C, 4 h View Scheme

aluminium trichloride; acetyl chloride; lithium chloride 1.) HMPA, diglyme, 70 deg C, 59 h, 2.) 45 deg C, 5 h; Multistep reaction. Title compound not separated from byproducts;

aluminium trichloride; antimony(V) pentachloride; SbF3; acetyl chloride 1.) vacuum 73 torr, 100 - 120 deg C, 5 h, 2.) 45 deg C, 4 h; Yield given. Multistep reaction. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;

aluminium trichloride; antimony(V) pentachloride; SbF3; acetyl chloride multistep reaction, reaction of polyfluorindanes with aluminum chloride and certain other Lewis acids;