反应详情

To a solution of 4-bromobutanal (prepared as described in J. Org. Chem., 1979, 44, 3230-3238: 450 mg, 2.98 mmol) in tetrahydrofuran (10 mL) at room temperature was added 1,3-propane diol (1.0 mL, 13.7 mmol) and p-toluenesulfonic acid monohydrate (50 mg, 0.26 mmol). The mixture was heated at reflux for 2 hours, cooled and suspended in a mixture of water and diethyl ether (200 mL of 1:1). The two layers were separated and the organic layer was dried over magnesium sulfate, filtered, and then concentrated in vacuo to give the title compound as a clear oil.

1. temperatureThe mixture was heated
2. temperatureat reflux for 2 hours
3. temperaturecooled
4. customThe two layers were separated
5. dry with materialthe organic layer was dried over magnesium sulfate
6. filtrationfiltered
7. concentrationconcentrated in vacuo