反应详情

A mixture of 4.3 g of 3-methyl-2-buten-1-ol and 16.2 g of ethyl orthoacetate was heated with stirring. The temperature was raised slowly over 2 hours to 120°, during which time 1.8 g of ethanol was evolved and removed. Heating was continued at 120° for 30 minutes and the reaction mixture was then distilled to give, after removal of 8.5 g of unreacted ethyl orthoacetate (b.p. 50°-65°/57 mm), 4.25 g of 1,1-diethoxy-1-(3-methyl-2-buten-1-yloxy)ethane, b.p. 75°-76°/6 mm.

1. temperaturewas heated
2. customremoved
3. temperatureHeating
4. distillationthe reaction mixture was then distilled
5. customto give
6. customafter removal of 8.5 g of unreacted ethyl orthoacetate (b.p. 50°-65°/57 mm), 4.25 g of 1,1-diethoxy-1-(3-methyl-2-buten-1-yloxy)ethane, b.p. 75°-76°/6 mm