1: cyclohexanone With pyrrolidinium hydrochloride in water; N,N-dimethyl-formamide T=70°C; 2: 4-methoxy-1-vinyl-benzene With manganese(IV) oxide; Cu(ClO4)2*6H2O in water; N,N-dimethyl-formamide T=70°C; 48 h;

1: With lithium boron tetrafluoride; [Ru(2,2′-bipyridine)3][hexafluorophosphate]2; 2,3,5,6-tetramethyl-p-benzoquinone in aceonitrile T=20°C; 12 h; Inert atmosphereIrradiationMolecular sieve; 2: With water; ammonium chloride in acetonitrile T=20°C; 1 h; Inert atmosphereMolecular sieve;

(i), (ii) H2O; Multistep reaction;