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Vinyl Acetate → 6-chloro-2-iodo-9-vinyl-9H-purine

HRID 655812
Notes
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Reaction equation

HRID 655812 reaction equation
C(O[CH:5]=[CH2:6])(=O)C.OS(O)(=O)=O.CCOC(C)=O.[I:18][C:19]1[N:27]=[C:26]2[C:22]([N:23]=[CH:24][NH:25]2)=[C:21]([Cl:28])[N:20]=1>[Hg](OC(C)=O)OC(C)=O>[Cl:28][C:21]1[N:20]=[C:19]([I:18])[N:27]=[C:26]2[C:22]=1[N:23]=[CH:24][N:25]2[CH:5]=[CH2:6]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7904Vinyl AcetateHCID 86628183Ethyl acetate sulfuric acidHCID 1784783676-Chloro-2-iodopurine

Product 1

HCID 577424006-chloro-2-iodo-9-vinyl-9H-purine

Reagents, catalysts & solvents 1

HCID 16683746DiacetyloxymercuryCatalyst

Conditions

Temperature
47.5 °C

Procedure

In a 250 mL pressure tube, Hg(OAc)2 (2.52 g, 7.88 mmol) was suspended in vinyl acetate (73 mL, 788 mmol). To this suspension was added H2SO4/EtOAc (1.5 mL/15 mL). A clear solution was formed. The 2-iodo-6-chloro-9H-purine (22.1 g, 78.8 mmol) was added. A suspension formed again. It was degassed and stirred at 45-50° C. overnight. A dark solution was formed. The mixture was passed through celite, washed with EtOAc. Organic layer was washed with Sat. NaHCO3> dried Na2SO4. The product was purified on silica gel chromatography column (1-5% MeOH/DCM).

Workup

  1. customA clear solution was formed
  2. customA suspension formed again
  3. customIt was degassed
  4. customA dark solution was formed
  5. washwashed with EtOAc
  6. washOrganic layer was washed with Sat. NaHCO3> dried Na2SO4
  7. customThe product was purified on silica gel chromatography column (1-5% MeOH/DCM)

Sources & evidence

ORD record
ord-5618de93c9b5427392d936b5ebdfbce8
Source dataset
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08071609B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes