反应详情

温度

35 °C

The mixture of methyl 3-(2,2-dimethyl-1,3-dioxolan-4-ylidene)-2-oxopropanoate (20 g, 0.1 mol) and 2-hydrazino-3-chloropyridine (14.3 g, 0.1 mol) in 40 ml of isopropanol was stirred for 18 hours at 35° C. The precipitate was filtered off and washed with 15 ml of isopropanol. This gave 24.2 g (85%) of the product as a pale yellow solid with a melting point of 113° C.

1. filtrationThe precipitate was filtered off
2. washwashed with 15 ml of isopropanol