反应详情

A mixture of methyl 2-chloro-2-methoxyacetate (13.86 g., 0.1 mole), powdered sodium azide (8.46 g., 0.13 mole) and dry dimethoxyethane (80ml.) is stirred and heated at reflux for 39 hours. After cooling to room temperature, the mixture is filtered to remove salts which are washed with dry ether. Evaporation of the solvents at aspirator pressure leaves a yellow liquid which is distilled to give methyl 2-azido-2-methoxyacetate (10.5 g.) as a water-white liquid (b.p. 75°-77°C./17 mm.).

1. temperatureheated
2. temperatureat reflux for 39 hours
3. filtrationthe mixture is filtered
4. customto remove salts which
5. washare washed with dry ether
6. customEvaporation of the solvents at aspirator pressure
7. customleaves a yellow liquid which
8. distillationis distilled