反应详情

4-Hydroxy-4-trimethylsilanylethynyl-tetrahydro-pyran-2-carboxylic acid ethyl ester (2.50 g, 9.25 mmol) was dissolved in MeOH (20 mL) in a pressure reaction tube and NH3 gas was passed through the solution for 10 minutes with stirring. The tube was tightly capped and the reaction was stirred for 3 days. After solvent removal, 1.53 g (97%) of yellow oil was obtained: 1H NMR (CD3OD) δ 1.48 (t, 1H), 1.70 (td, 1H), 1.85 (d, 1H), 2.30 (d, 1H), 3.04 (s, 1H), 3.29 (s, 1H), 3.71(t, 1H), 3.98 (d, 1H), 4.06 (dt, 1H).

1. customThe tube was tightly capped
2. stirringthe reaction was stirred for 3 days
3. customAfter solvent removal