Water → HCID 23511885, compound

HRID 354514Notes

Reaction equation

HRID 354514 reaction equation
CS(O[CH2:6][CH2:7][O:8][C:9]1[CH:18]=[CH:17][C:12]([C:13]([O:15][CH3:16])=[O:14])=[CH:11][CH:10]=1)(=O)=O.[NH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.O>CC#N>[C:20]1([NH:19][CH2:6][CH2:7][O:8][C:9]2[CH:10]=[CH:11][C:12]([C:13]([O:15][CH3:16])=[O:14])=[CH:17][CH:18]=2)[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

Participants

5

Procedure

To a solution of methyl 4-[2-(methanesulfonyloxy)ethoxy]benzoate (2.74 g, 10 mmol) in MeCN (50 ml), was added aniline (9.1 ml, 100 mmol) at rt. The reaction was stirred for 64 hours at reflux. The mixture was poured into H2O (200 mL), extracted with EtOAc (100 mL×2), dried over MgSO4. After removal of the solvent in vacuo, the unreacted aniline was removed in vacuo by co-evaporation with toluene (10 mL×3) at 80° C. The residue was chromatographed on silica gel (middle pressure chromatography system: YAMAZEN YFLC-5404-FC, f50 mm×150 mm, CHCl3) to give methyl 4-[2-(N-phenylamino)ethoxy]benzoate (2.23 g, 82%) as a colorless oil. 1H-NMR (CDCl3) δ3.56 (t, J=5.1 Hz, 2 H), 3.90 (s, 3 H), 4.21 (t, J=5.1 Hz, 2 H), 6.68 (dd, J=1.0 Hz, 8.6 Hz, 2 H), 6.75 (t, J=7.3 Hz, 1 H), 7.20 (AB type d, J=7.3 Hz, 2 H), 8.00 (d, J=9.1 Hz, 2 H); MS (ESI) m/z 272 (M++1).

Workup

  1. temperatureat reflux
  2. extractionextracted with EtOAc (100 mL×2)
  3. dry with materialdried over MgSO4
  4. customAfter removal of the solvent in vacuo
  5. customthe unreacted aniline was removed in vacuo by co-evaporation with toluene (10 mL×3) at 80° C
  6. customThe residue was chromatographed on silica gel (middle pressure chromatography system: YAMAZEN YFLC-5404-FC, f50 mm×150 mm, CHCl3)

Sources & evidence

ORD record
ord-f3f66304a81a451abaffa9ed69b2ef29
Source dataset
uspto-grants-2004_06
Patent number
US06756378B2

Reaction notes

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