反应详情

1.1 g (5.92 mmole) 3-Chloro-2-hydrazino-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine and 0.72 g (5.92 mmole) ethoxymethylenemalononitrile in 10 ml ethanol was heated at reflux for 2 hours. The resulting precipitate was suction filtered, washed with ethanol, dried and purified by silica gel column chromatography (hexane/ethyl acetate).

1. temperatureat reflux for 2 hours
2. filtrationfiltered
3. washwashed with ethanol
4. customdried
5. custompurified by silica gel column chromatography (hexane/ethyl acetate)