propan-2-yl N-(3-hydroxyphenyl)carbamate

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 3-aminophenol (109 g), magnesium oxide (25 g), water (350 ml) and ethyl acetate (100 ml) was stirred vigorously at room temperature while isopropyl chloroformate (123 g) was added slowly. An ice bath was employed to ensure that the temperature did not exceed 30° C. After stirring for one hour at room temperature, the mixture was filtered to remove insoluble particles. These were washed thoroughly with ether, then the filtrates were combined, then separated, and the organic layers were dried over magnesium sulphate. Evaporation under reduced pressure gave a viscous, pale yellow oil which was crystallised from toluene to give 162.7 g of desired product, mp 75°-77° C. was added slowly An ice bath was employed did not exceed 30° C the mixture was filtered to remove insoluble particles These were washed thoroughly with ether separated the organic layers were dried over magnesium sulphate Evaporation under reduced pressure gave a viscous, pale yellow oil which was crystallised from toluene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 3-aminophenol (109 g), magnesium oxide (25 g), water (350 ml) and ethyl acetate (100 ml) was stirred vigorously at room temperature while isopropyl chloroformate (123 g) was added slowly. An ice bath was employed to ensure that the temperature did not exceed 30° C. After stirring for one hour at room temperature, the mixture was filtered to remove insoluble particles. These were washed thoroughly with ether, then the filtrates were combined, then separated, and the organic layers were dried over magnesium sulphate. Evaporation under reduced pressure gave a viscous, pale yellow oil which was crystallised from toluene to give 162.7 g of desired product, mp 75°-77° C. was added slowly An ice bath was employed did not exceed 30° C the mixture was filtered to remove insoluble particles These were washed thoroughly with ether separated the organic layers were dried over magnesium sulphate Evaporation under reduced pressure gave a viscous, pale yellow oil which was crystallised from toluene