反应详情

A solution of N,N,3-trimethyl-2-furanmethanamine (10.3 g) in dry tetrahydrofuran (200 ml) under nitrogen was treated over 2 hr with 1.6 M n-butyl lithium in hexane 846.2 ml) at -40° to -45° C. After stirring for 2 hr at room temperature paraformaldehyde (2.3 g) in dry tetrahydrofuran (100 ml) was added and the solution stirred overnight. Water (10 ml) was added and the solvent evaporated. Ethyl acetate (200 ml) and sodium sulphate were added and the organic phase was evaporated giving an oily residue which was distilled (85°/0.1 mm) affording the title compound (8 g).

1. additionwas added
2. customthe solvent evaporated
3. additionEthyl acetate (200 ml) and sodium sulphate were added
4. customthe organic phase was evaporated
5. customgiving an oily residue which
6. distillationwas distilled (85°/0.1 mm)