反应详情

A mixture of 8.5 g. of 5-(4-chlorophenyl)-2-hydrazinopyridine and 80.0 ml. of ethyl orthoformate is refluxed for 5 hours. The mixture is filtered and the solid is washed with hexane to give 6.5 g. of the product of the Example, m.p. 259°-262° C.

1. additionA mixture of 8.5 g
2. filtrationThe mixture is filtered
3. washthe solid is washed with hexane
4. customto give 6.5 g