Triacetoxyperiodinane → HCID 23498958, compound

HRID 1836902Notes

Reaction equation

HRID 1836902 reaction equation
[CH3:1][C:2]1[CH:10]=[C:9](/[CH:11]=[CH:12]/[C:13]2[C:22]([CH3:23])=[CH:21][C:20]3[C:19]([CH3:25])([CH3:24])[CH:18]([OH:26])[CH2:17][C:16]([CH3:28])([CH3:27])[C:15]=3[CH:14]=2)[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl.[Cl-].[Na+].O>[CH3:1][C:2]1[CH:10]=[C:9](/[CH:11]=[CH:12]/[C:13]2[C:22]([CH3:23])=[CH:21][C:20]3[C:19]([CH3:24])([CH3:25])[C:18](=[O:26])[CH2:17][C:16]([CH3:28])([CH3:27])[C:15]=3[CH:14]=2)[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5]

Participants

5

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 23498939HCID 23498939, compound

Product 1

HCID 23498958HCID 23498958, compoundYield 92%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 57417360Sodium chloride; waterSolvent

Procedure

To a solution of 1.6 g (4.2 mmol) of methyl-4-[(E)-2-(5,5,8,8-tetramethyl-3-methyl-6-hydroxy-5,6,7,8-tetrahydro-naphthalen-2-yl)vinyl]-benzoic acid in 50 ml of methylene chloride at room temperature was added 1.97 g (4.65 mmol) of Dess-Martin periodinane. After 1 h, the reaction mixture was poured into brine and extracted with methylene chloride. The organic fraction was dried over sodium sulfate, adsorbed onto silica gel and purified by flash chromatography (gradient elution: hexane-8% ethyl acetate/hexane) to afford 1.45 g (92%) of methyl-4-[(E)-2-(5,5,8,8-tetramethyl-3-methyl-6-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl)vinyl]-benzoic acid (M+=376).

Workup

  1. extractionextracted with methylene chloride
  2. dry with materialThe organic fraction was dried over sodium sulfate
  3. custompurified by flash chromatography (gradient elution: hexane-8% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-8070a2acd9df4b0bb47eed6d58a93359
Source dataset
uspto-grants-2004_08
Patent number
US06777418B2

Reaction notes

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