Sulfuryl chloride → Ethyl 4-chloro-3-oxo-2-(propoxyimino)butanoate
反応式
[O:1]=[C:2]([CH3:14])[C:3](=[N:9][O:10][CH2:11][CH2:12][CH3:13])[C:4]([O:6][CH2:7][CH3:8])=[O:5].S(Cl)([Cl:18])(=O)=O>C(O)(=O)C>[Cl:18][CH2:14][C:2](=[O:1])[C:3](=[N:9][O:10][CH2:11][CH2:12][CH3:13])[C:4]([O:6][CH2:7][CH3:8])=[O:5]参加物
4
実験手順
Ethyl 3-oxo-2-propoxyiminobutyrate (syn isomer, 15.4 g.) and sulfuryl chloride (10.6 g.) were dissolved in acetic acid (15.4 ml.) warmed at 35° to 40° C. for 10 minutes with stirring and then stirred at ambient temperature for additional 6 hours. The reaction mixture was poured into ice-water (200 ml.) and the resultant mixture was extracted twice with chloroform. The extract was washed with an aqueous solution of sodium chloride, twice a saturated aqueous solution of sodium bicarbonate and once with water in turn, dried over magnesium sulfate, and then evaporated to dryness under reduced pressure to give ethyl 4-chloro-3-oxo-2-propoxyiminobutyrate (syn isomer, 15.4 g.), oil.