3-(Propan-2-yl)-1,2-oxazol-5-amine → 3-(Oxan-4-yl)-1,2-oxazol-5-amine

関与物質

反応手順

Prepared from 3-oxo-3-(tetrahydro-2H-pyran-4-yl)propanenitrile (350 mg, 2.29 mmol) according to the method described for 3-isopropylisoxazol-5-amine in Example 122A Step 2, to afford 3-(tetrahydro-2H-pyran-4-yl)isoxazol-5-amine as a colorless solid (170 mg, 44%) which was used in the next step without further purification. 1H NMR (300 MHz, CDCl3) δ 5.01 (s, 1H), 4.40 (brs, 2H), 4.02-4.05 (m, 2H), 3.46-3.55 (m, 2H), 2.87 (m, 1H), 1.71-1.84 (m, 4H); LC-MS (ESI) m/z 169 (M+H)+.

情報源と証拠