Water → (+/-)-1,1-Dimethylethyl [1-[[[(4-methylphenyl)-sulfonyl]oxy]methyl]-2-methylpropyl]carbamate

Participants

Reaction Conditions

Reaction Steps

4-Methylbenzenesulfonyl chloride (0.2222 mol) was added portionwise at 10° C. to a mixture of 1,1-dimethylethyl [1-(hydroxymethyl)-2-methylpropyl]carbamoate (0.202 mol) in pyridine (65 ml). The mixture was stirred at 10° C. for 2 hours. H2O (75 ml) was added at 10° C. The precipitate was filtered off, washed with H2O and taken up in CH2Cl2. The organic solution was washed with H2O, dried, filtered and the solvent was evaporated, yielding 49 g of (±)-1,1-dimethylethyl [1-[[[(4-methylphenyl)-sulfonyl]oxy]methyl]-2-methylpropyl]carbamate (68%) (interm. 13).

Provenance & Evidence