in nitromethane; benzene 120 h; Ambient temperature;

1: Mg, NH4Cl / 1)ether, THF, 3 deg C,1h 2)30 min, room temp., stand overnight 4 deg C 2)water, benzene, ice 2: 78 percent / SOCl2, tartaric acid / 1)pyridine, dichlormethane, -10 deg C, 50 min 2)0 - 5 deg C, 2h 3)water 3: 90 percent / nitromethane; benzene / 120 h / Ambient temperature View Scheme

1: Mg, NH4Cl / 1)ether, THF, 3 deg C,1h 2)30 min, room temp., stand overnight 4 deg C 2)water, benzene, ice 2: 78 percent / SOCl2, tartaric acid / 1)pyridine, dichlormethane, -10 deg C, 50 min 2)0 - 5 deg C, 2h 3)water 3: 90 percent / nitromethane; benzene / 120 h / Ambient temperature View Scheme

1: 78 percent / SOCl2, tartaric acid / 1)pyridine, dichlormethane, -10 deg C, 50 min 2)0 - 5 deg C, 2h 3)water 2: 90 percent / nitromethane; benzene / 120 h / Ambient temperature View Scheme