Water → HCID 53642688, compound
Reaction equation
[C:1]1([SH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[H-].[Na+].[C:10]([O:14][C:15]([NH:17][CH2:18][CH:19](O)C)=[O:16])([CH3:13])([CH3:12])[CH3:11].O.[CH2:23]1COCC1>>[C:10]([O:14][C:15]([NH:17][C@H:18]([CH3:19])[CH2:23][S:7][C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)=[O:16])([CH3:11])([CH3:12])[CH3:13]Participants
6
Procedure
Thiophenol (1.5 g, 14 mmol) was dissolved in dry THF (100 ml) and a 60% oil dispersion of sodium hydride (0.30 g, 14 mmol) was added in portions under nitrogen. After stirring for 15 min. at room temperature, the mesylate ester of N-tert-butoxycarbonyl-2-hydroxypropylamine (3.2 g, 14 mmol) was added in three portions and the reaction mixture was heated at 70° C. for 18 h. After cooling, water (30 ml) was added, the aqueous phase was separated and washed with dichloromethane (50 ml). The combined organic phases were dried (MgSO4) and evaporated to give (R)- N-tertbutyloxycarbonyl-1-phenylthio-2-propylamine as a fawn oil (3.2 g, 85%), TLC Rf 0.64 [SiO2 : heptanethyl acetate (1:1)].
Workup
- temperaturethe reaction mixture was heated at 70° C. for 18 h
- temperatureAfter cooling
- customthe aqueous phase was separated
- washwashed with dichloromethane (50 ml)
- dry with materialThe combined organic phases were dried (MgSO4)
- customevaporated
Sources & evidence
- ORD record
- ord-eaa034b37e494dd782aa84b479bc738f
- Source dataset
- uspto-grants-1997_09
- Patent number
- US05672588
Reaction notes
Loading…