反应详情

To a solution of tert-butyl 4-(dimethylcarbamoyl)phenylcarbamate (Int. 73) (1.11 g, 4.21 mmol) in AcOEt (20 ml), HCl 4M in AcOEt (18 ml, 76 mmol) was added, and the mixture stirred for 5 hours at RT. The pH was adjusted at 6/7 by adding NaHCO3 sat. sol. and aqueous phase was extracted with AcOEt (×3). Organic phase was dried over Na2SO4 and evaporated under reduced pressure to give mg 615 of the title product (Int. 74).

1. extractionwas extracted with AcOEt (×3)
2. dry with materialOrganic phase was dried over Na2SO4
3. customevaporated under reduced pressure