反应详情

2.75 g of [8-(4-Fluoro-phenyl)-1,4-dioxa-spiro[4.5]dec-8-yl]-carbamic acid benzyl ester (76) were dissolved in 30 mL of acetone and 15 mL of 5N HCl. When conversion was complete, the mixture was carefully poured into sat. sodium bicarbonate solution. The aqueous layer was extracted twice with dichloromethane,

1. extractionThe aqueous layer was extracted twice with dichloromethane