反应 #328241

反应方程式

dimethylamine

diethylphosphoryl cyanide

triethylamine

2-amino-5-bromonicotinic acid

→

title Compound

2-Amino-5-bromo-N,N-dimethylnicotinamide

溶剂

tetrahydrofuran

tetrahydrofuran

反应条件

后处理

1. 1
   workup.WAITat room temperature for 4 h
2. 2
   浓缩Concentration and purification by column chromatography on silica (5-10% methanol in dichloromethane)

实验过程

To a suspension of 2-amino-5-bromonicotinic acid (0.35 g, 1.61 mmol) in tetrahydrofuran (5 mL) was added dimethylamine (0.8 mL of a 2M solution in tetrahydrofuran, 1.60 mmol), diethylphosphoryl cyanide (0.29 g, 1.77 mmol), and triethylamine (0.34 g, 3.38 mmol) at 0° C. The mixture was stirred at 0° C. for 30 min and then at room temperature for 4 h. Concentration and purification by column chromatography on silica (5-10% methanol in dichloromethane) gave the title Compound as a white solid. MS (EI) for C8H10BrN3O: 244 (MH+).

来源