反应详情

To a solution of 3.5 g 4-chlorobenzil in 15 ml ethanol is added 0.45 g anhydrous hydrazine. The solution is refluxed for 1 hour, filtered and water added to the cloud point, and allowed to crystallize yielding 2.3 g of 4-chlorobenzoin hydrazone.

1. temperatureThe solution is refluxed for 1 hour
2. filtrationfiltered
3. additionwater added to the cloud point
4. customto crystallize