反应详情

温度

45 °C

A mixture of 6-chloro-2-(chloromethyl)imidazo[1,2-a]pyridine (Example 4, Step 1: 0.186 g), 4-(2-keto-1-benzimidazolinyl)piperidine (Aldrich; 0.201 g), triethylamine (0.094 g), and dichloromethane (4 mL) is stirred at 45° C. for 20 h, after which time the mixture is cooled. Dichloromethane and aqueous sodium bicarbonate are added and the solids collected and dried. Additional material is obtained by concentration of the organic layer. Crystallization from methanol/dichloromethane/hexane gives 0.123 g of the title compound; mp 210-211 (decomp)°C; IR (mineral oil) 1695, 1486, 1338, 736, 1074 cm-1. 1H NMR (DMSOd6) δ1.63, 2.19, 2.38, 3.08, 3.66, 4.12, 6.96, 7.23, 7.54, 7.87, 8.80, 10.84.

1. temperatureafter which time the mixture is cooled
2. customthe solids collected
3. customdried
4. customAdditional material is obtained by concentration of the organic layer
5. customCrystallization from methanol/dichloromethane/hexane