(2-chlorophenyl)urea

Conditions: temp:15.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: O-chloroaniline (50 g) was added in water (400 g) and acetic acid (200 g), followed by cooling to 15° C. Then, a solution of potassium cyanate (63.6 g) and water (300 g) was added dropwise at not more than 15° C. over 40 minutes. The mixture was heated to 30° C., filtered and then washed with cold water to obtain a white crystal. This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g) to obtain 47.1 g of o-chlorophenylurea as a white needle crystal. The mixture was heated to 30° C. filtered washed with cold water to obtain a white crystal This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g)

Conditions: temp:15.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: O-chloroaniline (50 g) was added in water (400 g) and acetic acid (200 g), followed by cooling to 15° C. Then, a solution of potassium cyanate (63.6 g) and water (300 g) was added dropwise at not more than 15° C. over 40 minutes. The mixture was heated to 30° C., filtered and then washed with cold water to obtain a white crystal. This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g) to obtain 47.1 g of o-chlorophenylurea as a white needle crystal. The mixture was heated to 30° C. filtered washed with cold water to obtain a white crystal This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g)

Conditions: temp:15.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: O-chloroaniline (50 g) was added in water (400 g) and acetic acid (200 g), followed by cooling to 15° C. Then, a solution of potassium cyanate (63.6 g) and water (300 g) was added dropwise at not more than 15° C. over 40 minutes. The mixture was heated to 30° C., filtered and then washed with cold water to obtain a white crystal. This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g) to obtain 47.1 g of o-chlorophenylurea as a white needle crystal. The mixture was heated to 30° C. filtered washed with cold water to obtain a white crystal This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g)

Conditions: temp:15.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: O-chloroaniline (50 g) was added in water (400 g) and acetic acid (200 g), followed by cooling to 15° C. Then, a solution of potassium cyanate (63.6 g) and water (300 g) was added dropwise at not more than 15° C. over 40 minutes. The mixture was heated to 30° C., filtered and then washed with cold water to obtain a white crystal. This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g) to obtain 47.1 g of o-chlorophenylurea as a white needle crystal. The mixture was heated to 30° C. filtered washed with cold water to obtain a white crystal This crystal was recrystallized from a solution of ethanol (350 g) and water (100 g)