反应 #3738880
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08741909B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a stirred solution of the oxime (14) (1.50 g, 8.86 mmol) in ethanol (70 mL) under nitrogen was added 10% palladium on carbon (100 mg). The reaction mixture was placed under an atmosphere of hydrogen and stirred at RT for 2 hr. The reaction mixture was filtered through Celite™, and was then evaporated in vacuo to remove the ethanol. The resultant crude residue was partitioned between ethyl acetate (50 mL) and aq hydrochloric acid (2 M, 50 mL). The aq layer was separated and was neutralised with saturated sodium hydrogen carbonate solution and then re-extracted with ethyl acetate (70 mL) followed by a mixture of 2-propanol and chloroform (1:1, 2×70 mL). The propanol/chloroform extracts were dried, filtered and evaporated in vacuo separately to afford the title compound (15) in two batches (batch 1: 346 mg, 25%; batch 2: 370 mg, 27%) as white solids: m/z 156 (M+H)+ (ES+) (method C). The reaction mixture was filtered through Celite™ was then evaporated in vacuo to remove the ethanol The resultant crude residue was partitioned between ethyl acetate (50 mL) and aq hydrochloric acid (2 M, 50 mL) The aq layer was separated re-extracted with ethyl acetate (70 mL) followed by a mixture of 2-propanol and chloroform (1:1, 2×70 mL) The propanol/chloroform extracts were dried filtered evaporated in vacuo separately
来源 ID: ord-cfc71dc0395b4ae9a842f5b8a8d3a440