Ethyl Acetate → HCID 86658158, compound

Participants

Reaction Steps

A solution of tetrabutylammonium chloride (1 M in THF, 2.25 ml) is slowly added to a solution of crude 5-(3,5-dichloro-phenyl)-5-trifluoromethyl-3-(4-trimethylsilanylethynyl-naphthalen-1-yl)-4,5-dihydro-isoxazole (step A) in THF (25 ml) at 5° C. After 3 hours at 5° C. a saturated solution of ammonium chloride and ethyl acetate are added. The organic phase is washed with a saturated aqueous solution of NaCl, dried over MgSO4 and concentrated in vacuo. The crude product is purified on a semi-preparative HPLC to yield 5-(3,5-dichloro-phenyl)-3-(4-ethynyl-naphthalen-1-yl)-5-trifluoromethyl-4,5-dihydro-isoxazole as a brown solid.

Provenance & Evidence