3'-CHLOROACETOACETANILIDE

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Dissolved in toluene were 2.5 g (0.02 mole) of m-chloroaniline and a catalytic amount of pyridine, followed by dropwise addition of 1.9 g (0.022 mole) of diketene at 50° C. After completion of the dropwise addition, the resultant mixture was heated under reflux for 3 hours. Under ice-cooling, ligroin was added, and precipitated crystals were collected by filtration and were then washed first with ligroin and then with hexane. The crystals were then dried under reduced pressure to obtain 3'-chloroacetoacetanilide. After completion of the dropwise addition under reflux for 3 hours Under ice-cooling precipitated crystals were collected by filtration were then washed first with ligroin The crystals were then dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Dissolved in toluene were 2.5 g (0.02 mole) of m-chloroaniline and a catalytic amount of pyridine, followed by dropwise addition of 1.9 g (0.022 mole) of diketene at 50° C. After completion of the dropwise addition, the resultant mixture was heated under reflux for 3 hours. Under ice-cooling, ligroin was added, and precipitated crystals were collected by filtration and were then washed first with ligroin and then with hexane. The crystals were then dried under reduced pressure to obtain 3'-chloroacetoacetanilide. After completion of the dropwise addition under reflux for 3 hours Under ice-cooling precipitated crystals were collected by filtration were then washed first with ligroin The crystals were then dried under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Dissolved in toluene were 2.5 g (0.02 mole) of m-chloroaniline and a catalytic amount of pyridine, followed by dropwise addition of 1.9 g (0.022 mole) of diketene at 50° C. After completion of the dropwise addition, the resultant mixture was heated under reflux for 3 hours. Under ice-cooling, ligroin was added, and precipitated crystals were collected by filtration and were then washed first with ligroin and then with hexane. The crystals were then dried under reduced pressure to obtain 3'-chloroacetoacetanilide. After completion of the dropwise addition under reflux for 3 hours Under ice-cooling precipitated crystals were collected by filtration were then washed first with ligroin The crystals were then dried under reduced pressure