2,4,5-三氟-3-甲氧基苄腈

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 5 ml of concentrated sulfuric acid and 1.2 ml of water were added to 1.24 g (0.007 mole) of 3-methoxy-2,4,5-trifluorobenzonitrile (XXIV) [prepared as described in Step (E4) above], and the mixture was heated at 100°-140° C. for 30 minutes, poured into ice-water, and extracted with ethyl acetate. The extract was washed with water and dried, and the solvent was removed by evaporation under reduced pressure to afford 1.10 g of 3-methoxy-2,4,5-trifluorobenzamide (XXV) as a pale brown powder melting at 131°-133° C. the mixture was heated at 100°-140° C. for 30 minutes extracted with ethyl acetate The extract was washed with water dried the solvent was removed by evaporation under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 5 ml of concentrated sulfuric acid and 1.2 ml of water were added to 1.24 g (0.007 mole) of 3-methoxy-2,4,5-trifluorobenzonitrile (XXIV) [prepared as described in Step (E4) above], and the mixture was heated at 100°-140° C. for 30 minutes, poured into ice-water, and extracted with ethyl acetate. The extract was washed with water and dried, and the solvent was removed by evaporation under reduced pressure to afford 1.10 g of 3-methoxy-2,4,5-trifluorobenzamide (XXV) as a pale brown powder melting at 131°-133° C. the mixture was heated at 100°-140° C. for 30 minutes extracted with ethyl acetate The extract was washed with water dried the solvent was removed by evaporation under reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Using 2,4,5-trifluoro-3-methoxybenzonitrile (347 mg), (2S,3S)-3-(1-hydroxy-1-methylethyl)-2-methylpyrrolidine 1/2 oxalate (409 mg) and lithium carbonate (328 mg), the title compound was obtained as a pale-yellow oil (yield: 175 mg) by an operation similar to that in Example 3.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 5 ml of concentrated sulfuric acid and 1.2 ml of water were added to 1.24 g (0.007 mole) of 3-methoxy-2,4,5-trifluorobenzonitrile (XXIV) [prepared as described in Step (E4) above], and the mixture was heated at 100°-140° C. for 30 minutes, poured into ice-water, and extracted with ethyl acetate. The extract was washed with water and dried, and the solvent was removed by evaporation under reduced pressure to afford 1.10 g of 3-methoxy-2,4,5-trifluorobenzamide (XXV) as a pale brown powder melting at 131°-133° C. the mixture was heated at 100°-140° C. for 30 minutes extracted with ethyl acetate The extract was washed with water dried the solvent was removed by evaporation under reduced pressure