Triacetoxyperiodinane → tert-butyl 3-(4-(tert-butoxycarbonylamino)-1H-indol-1-yl)-3-(4-chlorophenyl)-4-oxobutanoate

HRID 1477912Notes

Reaction equation

HRID 1477912 reaction equation
[C:1]([O:5][C:6]([NH:8][C:9]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:10]=1[CH:11]=[CH:12][N:13]2[C:18]([C:29]1[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=1)([CH2:27][OH:28])[CH2:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[O:7])([CH3:4])([CH3:3])[CH3:2].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl.O>[C:1]([O:5][C:6]([NH:8][C:9]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:10]=1[CH:11]=[CH:12][N:13]2[C:18]([C:29]1[CH:30]=[CH:31][C:32]([Cl:35])=[CH:33][CH:34]=1)([CH:27]=[O:28])[CH2:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

5

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 86705056tert-Butyl 3-(4-(tert-butoxycarbonylamino)-1H-indol-1-yl)-3-(4-chlorophenyl)-4-hydroxybutanoate

Product 1

HCID 86705057tert-butyl 3-(4-(tert-butoxycarbonylamino)-1H-indol-1-yl)-3-(4-chlorophenyl)-4-oxobutanoate

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of the product of Step C (1.2 g, 2.4 mmol) in DCM (10 mL) was added Dess-Martin periodinane (2.03 g, 4.8 mmol) in portion at room temperature. After stirring for 0.5 h, the mixture was diluted with water (15 mL), extracted with ethyl acetate. The organic layers were washed with brine (10 mL), dried over sodium sulfate, filtered and evaporated. The residue was purified by silica gel chromatography (EA/PE=1:8) to afford the title compound. LC/MS m/z=499.2[M+H]+.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layers were washed with brine (10 mL)
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. customevaporated
  6. customThe residue was purified by silica gel chromatography (EA/PE=1:8)

Sources & evidence

ORD record
ord-d4877527bb654a22922ed507af39d7d3
Source dataset
uspto-grants-2016_08
Patent number
US09403807B2

Reaction notes

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