2BF4(1+)*C27H50P2*2H(1+); palladium diacetate; caesium carbonate in toluene T=110°C; 14 h; Inert atmosphere;

iron tribromide in toluene T=80°C; Wagner-Meerwein Rearrangement; 14 h; Sealed tubeSchlenk techniqueInert atmosphere; chemoselective reaction;

Stage #1: With  diisobutylaluminium hydride in  hexane; dichloromethane T=-78°C;  Inert atmosphere; Stage #2: With  hydrogenchloride; water in  hexane; dichloromethane; ethyl acetate  Inert atmosphere;   

With  palladium diacetate; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'- binaphthyl in  1,4-dioxane T=110°C;  Inert atmosphere;