反応 #1898751

反応方程式

6-fluoro-2-methyl-pyridin-3-ylamine

propane-1-thiol

potassium hydroxide

→

2-methyl-6-propylsulfanyl-pyridin-3-ylamine

収率 75.0%

溶媒

EtOH

反応条件

後処理

1. 1
   抽出Mixture was extracted with CH2Cl2 and brine
2. 2
   乾燥Organic phases were dried over MgSO4
3. 3
   ろ過filtered
4. 4
   濃縮concentrated
5. 5
   その他Residue was purified by column chromatography (hexane/AcOEt 2:1)

実験手順

A mixture of 6-fluoro-2-methyl-pyridin-3-ylamine (2.01 g, 16 mmol), propane-1-thiol (3.0 mL, 33 mmol), and potassium hydroxide (1.8 g, 32 mmol) in 3 mL EtOH were heated under microwave irradiation at 100° C. for 1 h and then at 150° C. for 2 h. Mixture was extracted with CH2Cl2 and brine. Organic phases were dried over MgSO4, filtered, and concentrated. Residue was purified by column chromatography (hexane/AcOEt 2:1) to give 2-methyl-6-propylsulfanyl-pyridin-3-ylamine (2.18 g, 75% yield) as a colorless oil. 1HNMR (CDCl3, 400 MHz) δ 0.99-1.03 (t, J=7.3 Hz, 3H), 1.64-1.73 (m, 2H), 2.39 (s, 3H), 3.02-3.05 (t, J=7.3 Hz, 2H), 3.48 (s, 2H), 6.82-6.84 (d, J=8.2 Hz, 1H), 6.93-6.95 (d, J=8.2 Hz, 1H). Exact mass calculated for C9H14N2S 182.09 found 183.0 (MH+).

出典