145166-06-9

764659-69-0

121282-70-0

General procedure for the synthesis of trans-N-Boc-cyclohexylamino alcohols from the compounds (CAS: 764659-69-0): the product of part A (8.0 g, 26.2 mmol) was dissolved in a solvent mixture of cyclohexene (100 mL) and ethanol (150 mL), and palladium/carbon catalyst (2.0 g) was added. The reaction mixture was heated to reflux for 6 h. Upon completion of the reaction, the catalyst was removed by filtration through a Celite pad. The filtrate was concentrated to afford tert-butyl (1S,2S)-2-hydroxy-cyclohexyl-carbamate (5.7 g, 100% yield) as a white solid. Mass spectral analysis showed M/Z 216.2 ([M + H]+).