Ammonium Chloride → HCID 178432329, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 4-(9-chloro-2-methyl-4,5-dihydro-1H-1,3,6-triaza-benzo[e]azulene-6-carbonyl)-2-methyl-benzonitrile from E125.2 (80 mg, 0.2 mmol) in methanol (5 ml) at room temperature was treated with cobalt(II) chloride hexahydrate (101 mg, 0.4 mmol). The mixture was cooled to 0° C. then sodium borohydride (80 mg, 2.1 mmol) was added portionwise. The reaction mixture was stirred at 0° C. for 30 min. then for 2 h at room temperature then saturated NH4Cl was added. The mixture was stirred for 10 min then the solid was filtered off through Celite® filter agent and the filtrate concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 1% 35% ammonia:9% methanol:90% di-chloromethane) to yield the title compound (24 mg, 30%).

Provenance & Evidence