[3-(3-Chlorophenyl)-2,1-benzisoxazol-5-yl](4-fluorophenyl)-methanone → [2-Amino-5-(4-fluorobenzoyl)phenyl](3-chlorophenyl)-methanone

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Reaction Steps

A mixture of intermediate 2 (0.0514 mol) in THF (180 ml) was cooled on an ice bath. TiCl3 15% in water (180 ml) was added dropwise slowly. The mixture was stirred at room temperature overnight, then poured out into ice water and extracted with DCM. The organic layer was separated, dried (MgSO4), filtered and the solvent was evaporated till dryness, yielding 18.2 g (100%) of [2-amino-5-(4-fluorobenzoyl)phenyl](3-chlorophenyl)-methanone (intermediate 3).

Provenance & Evidence