反应详情

To a solution of sodium methoxide prepared from Na metal (8.65 g, 0.38 m) in methanol(200 mL) at 0°-5° C., was added a solution of 4-(methylthio)benzaldehyde (12.6 ml, 94.7 mmol) and methyl azidoacetate (44 g, 0.382 mol) in methanol (30 mL). After stirring at the same temperature for 3 hours, the suspension was diluted with H2O (300 mL). The solids were filtered, washed with water and dried under vacuum to provide 19.4 g (82.0%) of methyl-2-azido-3-(4-methylthiophenyl)propenoate as a yellow solid.

1. filtrationThe solids were filtered
2. washwashed with water
3. customdried under vacuum