Cesium carbonate → 6-[(3-Nitrophenoxy)methyl]-2-phenylpyridine

HRID 1761675Notes

Reaction equation

HRID 1761675 reaction equation
[N+:1]([C:4]1[CH:5]=[C:6]([OH:10])[CH:7]=[CH:8][CH:9]=1)([O-:3])=[O:2].Cl[CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[N:14]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CC(C)=O.[I-].[K+]>[N+:1]([C:4]1[CH:5]=[C:6]([CH:7]=[CH:8][CH:9]=1)[O:10][CH2:12][C:13]1[N:14]=[C:15]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[CH:16]=[CH:17][CH:18]=1)([O-:3])=[O:2]

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 111373-NitrophenolHCID 147735482-(Chloromethyl)-6-phenylpyridine

Product 1

HCID 144799796-[(3-Nitrophenoxy)methyl]-2-phenylpyridine

Reagents, catalysts & solvents 2

HCID 4875Potassium IodideCatalystHCID 180AcetoneSolvent

Procedure

To a stirred solution of 4.2 g (0.03 mol) of 3-nitrophenol in 150 ml of acetone is added 7.5 (0.05 mol) of 2-chloromethyl-6-phenylpyridine hydrochloride3, 10 g (0.03 mol) of cesium carbonate and 0.5 g of potassium iodide, and the slurry is heated to reflux for 20 hours. The hot mixture is filtered, and the filtrate is concentrated in vacuo to obtain an oil (9.3 g). The crude product is recrystallized from ethyl acetate/pentane to give a first crop (4.5 g, 49%) of crystals, m.p. 77°-80° C. and a second crop (1.7 g, 19%) of crystals, m.p. 77°-81° C.

Workup

  1. temperaturethe slurry is heated
  2. temperatureto reflux for 20 hours
  3. filtrationThe hot mixture is filtered
  4. concentrationthe filtrate is concentrated in vacuo

Sources & evidence

ORD record
ord-c950838f7802473793f62195102ecc0d
Source dataset
uspto-grants-1989_05
Patent number
US04826990

Reaction notes

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