1: With bis(1,5-cyclooctadiene)-rhodium(I) tetrafluoroborate; (1R,2R)-1,2-bis(di[2-furyl]phosphanyl)cyclohexane; benzo[1,3,2]dioxaborole in ethylene glycol dimethyl ether; toluene T=-75°C; 1 h; 2: With potassium hydroxide; dihydrogen peroxide in ethylene glycol dimethyl ether Title compound not separated from byproducts;

ethylenediamine in methanol T=20°C; 10 h;

1: in carbon disulfide T=20°C; 5 h; 2: With sodium hydroxide; dihydrogen peroxide in methanol; carbon disulfide T=0 - 20°C; 3 h; Further stages. Title compound not separated from byproducts.;

sulfuric acid; hydrogen bromide Heating;

(CuOTf)2*C6H5CH3 in tetrahydrofuran T=20°C; 1 h; Inert atmosphereMolecular sieve;

N-iodo-succinimide; potassium carbonate in ethyl acetate T=20°C; Inert atmosphereMolecular sieve;

N-iodo-succinimide; potassium carbonate in ethyl acetate T=20°C; Inert atmosphereMolecular sieve;

1H-imidazole; iodine; triphenylphosphine in dichloromethane