Water → HCID 86762376, compound

HRID 875175Notes

Reaction equation

HRID 875175 reaction equation
CS(O[CH2:6][C@H:7]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[NH:8][C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])(=O)=O.[N-:22]=[N+:23]=[N-:24].[Na+].O>CN(C=O)C>[C:16]1([C@H:7]([NH:8][C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:6][N:22]=[N+:23]=[N-:24])[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

Participants

5

Reactant 3

HCID 962WaterHCID 33557Sodium AzideHCID 10335849(2S)-2-[(tert-butoxycarbonyl)amino]-2-phenylethyl methanesulfonate

Product 1

HCID 86762376HCID 86762376, compoundYield 76%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
55 °C

Procedure

(S)-2-Phenyl-2-tert-butoxycarbonylaminoethyl methanesulfonate (15.77 g, 0.05 mol) was dissolved in 50 mL DMF followed by the addition of sodium azide (19.5 g, 0.3 mol). The mixture was stirred for 24 hrs at 55° C., cooled to room temperature, poured into cold water (500 mL) and stirred vigorously for 20 minutes. Precipitate was collected by filtration, washed with water and dried, affording 9.97 g of the title compound as a white solid. Yield: 76%; (MH)+=263; 1H NMR (DMSO-d6): 1.37 (s, 9H), 3.36-3.50 (m, 2H), 4.69-4.75 (m, 1H), 7.23-7.36 (m, 5H), 7.65-7.68 (d, J=9.2 Hz, 1H).

Workup

  1. temperaturecooled to room temperature
  2. stirringstirred vigorously for 20 minutes
  3. filtrationPrecipitate was collected by filtration
  4. washwashed with water
  5. customdried

Sources & evidence

ORD record
ord-c875d5f0ffaa4b29bc7b00ec75df8ed0
Source dataset
uspto-grants-2015_03
Patent number
US08981114B2

Reaction notes

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