Phosphorus sulfide (P2S5) → 2-Amino-N-[(3,4-dichlorophenyl)methyl]benzenecarbothioamide

Participants

Reaction Steps

A mixture of 2-amino-N-(3,4-dichlorobenzyl)benzamide (3.5 g) and phosphorus pentasulfide (4.74 g) in dioxane (56 ml) was stirred at room temperature for 5 hours. The reaction mixture was poured into an aqueous sodium bicarbonate and extracted with ethyl acetate. The extract was washed with water and dried. Evaporation of the solvent gave a residue, which was chromatographed on silica gel. Elution with chloroform followed by recrystallization from isopropyl ether gave 2-amino-N-(3,4-dichlorobenzyl)benzenecarbothioamide (1.56 g).

Provenance & Evidence