Sodium Thiosulfate → HCID 68161248, compound

HRID 69895Notes

Reaction equation

HRID 69895 reaction equation
[C:1]([O:5][C:6]([NH:8][CH:9]1[CH:14]([OH:15])[CH2:13][CH2:12][N:11]([C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:17])[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.C([O-])(O)=O.[Na+].[O-]S([O-])(=S)=O.[Na+].[Na+]>ClCCl.C(OCC)(=O)C>[C:1]([O:5][C:6]([NH:8][CH:9]1[C:14](=[O:15])[CH2:13][CH2:12][N:11]([C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:17])[CH2:10]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 24477Sodium ThiosulfateHCID 159087TriacetoxyperiodinaneHCID 516892Sodium BicarbonateHCID 67972312Benzyl 3-((tert-butoxycarbonyl)amino)-4-hydroxypiperidine-1-carboxylate

Product 1

HCID 68161248HCID 68161248, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of (+/−)-benzyl 3-(tert-butoxycarbonylamino)-4-hydroxypiperidine-1-carboxylate in dichloromethane (0.1 M solution) was added Dess-Martin periodinane (1.5 equiv.). The reaction mixture was stirred at room temperature for 16 h. Then, the saturated NaHCO3 and 0.1 N Na2S2O3 aqueous solutions were added to the reaction mixture, which was stirred for 30 min and worked up with ethyl acetate. The crude benzyl 3-(tert-butoxycarbonylamino)-4-oxopiperidine-1-carboxylate was purified by flash chromatography (30% EtOAc in hexanes, 70%). LCMS (m/z): 249.2 (MH+); LC Rt=3.98 min. 1H NMR (CDCl3): 1.41 (1H, s), 2.1-2.59 (1H, m), 2.73 (1H, m), 3.09 (1H, m), 4.30 (1H, m), 4.52 (1H, m), 4.90 (1H, m), 5.19 (2H, m), 5.45 (1H, m), 7.39 (5H, m).

Workup

  1. stirringwas stirred for 30 min
  2. customThe crude benzyl 3-(tert-butoxycarbonylamino)-4-oxopiperidine-1-carboxylate was purified by flash chromatography (30% EtOAc in hexanes, 70%)

Sources & evidence

ORD record
ord-d190f23a3c1b4d72b415ae37220880f5
Source dataset
uspto-grants-2014_09
Patent number
US08822497B2

Reaction notes

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