(4-Chloro-phenyl)-(4,5-difluoro-2-iodo-phenyl)-diazene → 2-(4-Chloro-phenylazo)-4,5-difluoro-benzonitrile

Participants

Reaction Steps

Copper (I) cyanide (9.76 g, 109 mmol) was added to a solution of (4-chloro-phenyl)-(4,5-difluoro-2-iodo-phenyl)-diazene (5.89 g, 16 mmol) in 1-propanol (95 ml) under an argon atmosphere. The reaction mixture was heated under reflux conditions for 14 h and diluted with CH2Cl2/heptane 1/1 (70 ml). The suspension was filtered and the filtrate was evaporated to dryness to give the title compound (3.3 g, 12 mmol; 77%) as brown solid which was used in the next step without further purification. MS: m/e=278.0 [M+H+].

Provenance & Evidence