反応 #337200

反応方程式

5-methoxypyridin-2-amine

ethoxycarbonyl isothiocyanate

→

5-methoxypyridin-2-amine ethoxycarbonyl thiourea

溶媒

dioxane

反応条件

後処理

1. 1
   濃縮The mixture was concentrated in vacuo

実験手順

To 5-methoxypyridin-2-amine (5 g, 40 mmol) in dioxane (40 mL) was added ethoxycarbonyl isothiocyanate (5.23 mL, 44.3 mmol). The reaction mixture was stirred at room temperature overnight. The mixture was concentrated in vacuo to afford 5-methoxypyridin-2-amine ethoxycarbonyl thiourea (10.28 g, 40.3 mmol, 100% yield). 1H NMR (300 MHz, DMSO-d6) δ ppm 12.03 (1 H, br. s.), 11.37 (1 H, br. s.), 8.53 (1 H, br. s.), 8.11 (1 H, d, J=2.93 Hz), 7.50 (1 H, dd, J=8.97, 3.11 Hz), 4.22 (2 H, q, J=7.07 Hz), 3.84 (3 H, s), 1.26 (3 H, t, J=7.14 Hz). MS (LC/MS) R.T.=2.40; [M+H]+=256.1.

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