Ph2P(OMe); hydrogen; [Rh(acac)(CO)2] in tetrahydrofuran T=40°C; P=30003 Torr; 16 h; Inert atmosphereAutoclaveMolecular sieve; regioselective reaction;

(i) LiNEt2, THF, (ii) /BRN= 108582/, (iii) tartaric acid, H2O; Multistep reaction;

aluminum oxide; sodium hypochlorite; sodium acetate; pyridinium chlorochromate in dichloromethane T=20°C; 12 h; Inert atmosphere;