Ethylene Glycol → 4-(3-Iodophenyl)morpholine

HRID 1179207

Reaction equation

HRID 1179207 reaction equation
I[C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([I:8])[CH:3]=1.[NH:9]1[CH2:14][CH2:13][O:12][CH2:11][CH2:10]1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C(O)CO>C(O)(C)C.[Cu]I>[I:8][C:4]1[CH:3]=[C:2]([N:9]2[CH2:14][CH2:13][O:12][CH2:11][CH2:10]2)[CH:7]=[CH:6][CH:5]=1

Participants

7

Reactant 4

HCID 174Ethylene GlycolHCID 8083MorpholineHCID 12270Benzene, 1,3-diiodo-HCID 62657Potassium Phosphate, Tribasic

Product 1

HCID 545364344-(3-Iodophenyl)morpholineYield 41%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 3776IsopropanolSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 1,3-diiodobenzene (5.05 g, 15.3 mmol) in isopropanol (16 mL) under nitrogen was added morpholine (1.33 g, 1.33 mL, 15.3 mmol), potassium phosphate (6.50 g, 30.6 mmol), ethylene glycol (1.90 g, 1.70 mL, 30.6 mmol) and copper (I) iodide (146 mg, 0.765 mmol). The mixture was heated at 80° C. for 15 h, and then cooled to room temperature. The solids were removed by filtration and the solution was concentrated. The residue was purified by silica gel column chromatograghy eluted with EtOAc:hexanes (5 to 25% EtOAc) to give 4-(3-iodo-phenyl)-morpholine (1.81 g, 41%) as a colorless oil. MS (ES+): m/z=290.0; 1H NMR (CDCl3, 500 MHz): δ 3.15 (t, 4H), 3.85 (t, 4H), 6.87 (dd, 1H), 6.96-7.00 (m, 1H), 7.20 (d, 1H), 7.22-7.25 (m, 1H).

Workup

  1. temperaturecooled to room temperature
  2. customThe solids were removed by filtration
  3. concentrationthe solution was concentrated
  4. customThe residue was purified by silica gel column chromatograghy
  5. washeluted with EtOAc

Sources & evidence

ORD record
ord-d67a636c58504719bbf449b4da1a9dc2
Source dataset
uspto-grants-2007_10
Patent number
US07279469B2

Linked notes

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