(4,5-bis((diphenylphosphino)methyl)-2,2-dimethyl-1,3-dioxolane)palladium(II)Cl2 in benzene T=120°C; P=152000 Torr; 19 h; Title compound not separated from byproducts;
1: cyclohexene With ozone in dichloromethane T=-78°C; 2: With Merrifield resin-bound piperidine in dichloromethane T=20°C; 24 h; 3: diazomethane in dichloromethane; ethyl acetate