Sodium Iodide → 2-[4-[[4-(2-Iodoethoxy)phenyl]methyl]phenyl]oxazole

HRID 16509

Reaction equation

HRID 16509 reaction equation
Cl[CH2:2][CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([C:18]3[O:19][CH:20]=[CH:21][N:22]=3)=[CH:14][CH:13]=2)=[CH:7][CH:6]=1.[I-:23].[Na+]>CC(=O)CC>[I:23][CH2:2][CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([C:18]3[O:19][CH:20]=[CH:21][N:22]=3)=[CH:14][CH:13]=2)=[CH:7][CH:6]=1

Participants

4

Reactant 2

HCID 5238Sodium IodideHCID 684847252-[4-[[4-(2-Chloroethoxy)phenyl]methyl]phenyl]oxazole

Product 1

HCID 684895932-[4-[[4-(2-Iodoethoxy)phenyl]methyl]phenyl]oxazoleYield 78.5%

Reagents, catalysts & solvents 1

HCID 6569Methyl Ethyl KetoneSolvent

Procedure

A solution of 2-[4-[[4-(2-chloroethoxy)phenyl]methyl]phenyl]oxazole (1.7 g, 4.4 mmol) in 2-butanone (18 mL) was stirred as sodium iodide (7 g, 44 mmol) was added. The reaction was heated at reflux for 2 days. The reaction was concentrated. The residue was dissolved in ethyl acetate and washed with water. The combined organic layers were dried and concentrated. The residue was recrystallized from methanol to give 1.4 g of 2-[4-[[4-(2-iodoethoxy)phenyl]methyl]phenyl]oxazole, 1H NMR (400 MHz, CDCl3) δ 7.97 (d, 2H), 7.68 (s, 1H), 7.27 (d, 2H), 7.21 (s, 1H), 7.13 (d, 2H), 6.82 (d, 2H), 4.22 (t, 2H), 3.96 (s, 2H), 3.39 (t, 2H).

Workup

  1. additionwas added
  2. temperatureThe reaction was heated
  3. temperatureat reflux for 2 days
  4. concentrationThe reaction was concentrated
  5. dissolutionThe residue was dissolved in ethyl acetate
  6. washwashed with water
  7. customThe combined organic layers were dried
  8. concentrationconcentrated
  9. customThe residue was recrystallized from methanol

Sources & evidence

ORD record
ord-c4f73b96e4cc4bb3806897b156366a96
Source dataset
uspto-grants-2010_06
Patent number
US07737145B2

Linked notes

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