(-)-Epichlorohydrin → HCID 53485842, compound

Participants

Reaction Steps

Into a reaction vessel were put potassium phthalimide (50.0 g, 0.27 mol), benzyltrimethylammonium chloride 5.00 g, 0.027 mol) and isopropanol (500 ml), and the mixture was cooled to 10° C. Thereto was added (R)-epichlorohydrin (74.9 g, 0.81 mol) and the mixture was stirred for 46 hours while being cooled. The solvent was removed and to the residue was added ethyl acetate (250 ml). The mixture was washed with water (250 ml), and then ethyl acetate was removed to give crude (R)-glycidylphthalimide (optical purity: 97% e.e.). The crude product was crystallized from ethyl acetate-hexane to give the object (R)-glycidylphthalimide (45.6 g, yield: 83%, optical purity: 98% e.e.) as white crystals. mp 100-102° C.

Provenance & Evidence