1-(1-Naphthyl)piperazine → 1-{2-[4-(2-Methyl-thiazol-4-yl)-phenyl]-ethyl}-4-naphthalen-1-yl-piperazine

HRID 329403Notes

Reaction equation

HRID 329403 reaction equation
Br.Cl[CH2:3][CH2:4][C:5]1[CH:10]=[CH:9][C:8]([C:11]2[N:12]=[C:13]([CH3:16])[S:14][CH:15]=2)=[CH:7][CH:6]=1.[C:17]1([N:27]2[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]2)[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH:20]=[CH:19][CH:18]=1.C(N(C(C)C)CC)(C)C.C(=O)([O-])[O-].[Na+].[Na+].[I-].[Na+]>CC(CC(C)C)=O>[C:17]1([N:27]2[CH2:32][CH2:31][N:30]([CH2:3][CH2:4][C:5]3[CH:10]=[CH:9][C:8]([C:11]4[N:12]=[C:13]([CH3:16])[S:14][CH:15]=4)=[CH:7][CH:6]=3)[CH2:29][CH2:28]2)[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH:20]=[CH:19][CH:18]=1

Participants

7

Reactant 5

HCID 13421-(1-Naphthyl)piperazineHCID 5238Sodium IodideHCID 10340Sodium CarbonateHCID 81531DiisopropylethylamineHCID 147269914-(4-(2-Chloroethyl)phenyl)-2-methylthiazole hydrobromide

Product 1

HCID 147270121-{2-[4-(2-Methyl-thiazol-4-yl)-phenyl]-ethyl}-4-naphthalen-1-yl-piperazine

Reagents, catalysts & solvents 1

HCID 7909Methyl Isobutyl KetoneSolvent

Procedure

To a 125 ml round-bottomed flask equipped with condenser and N2 inlet were added 2.39 g (7.5 mmol) of 4-(4-(2-chloroethyl)phenyl)-2-methylthiazole hydrobromide, 1.59 g (7.5 mmol) of N-(1-naphthyl)piperazine, 1.31 ml (7.5 mmol) of diisopropylethylamine, 1.59 g (15 mmol) of sodium carbonate, 5 mg of sodium iodide, and 50 ml of methylisobutylketone. The reaction was heated at reflux for 5 days, cooled, and the precipitate filtered. The solid was taken up in methylene chloride, washed with sodium bicarbonate, dried over sodium sulfate, treated with methylene chloride saturated with hydrochloride, evaporated, and the residue triturated with ether to afford a white solid, m.p. 305°-307° C., 1.76 g (48%).

Workup

  1. customTo a 125 ml round-bottomed flask equipped with condenser and N2 inlet
  2. temperatureThe reaction was heated
  3. temperatureat reflux for 5 days
  4. temperaturecooled
  5. filtrationthe precipitate filtered
  6. washwashed with sodium bicarbonate
  7. dry with materialdried over sodium sulfate
  8. additiontreated with methylene chloride saturated with hydrochloride
  9. customevaporated
  10. customthe residue triturated with ether
  11. customto afford a white solid, m.p. 305°-307° C., 1.76 g (48%)

Sources & evidence

ORD record
ord-82d4d90b35544a80aca467bfe97325ee
Source dataset
uspto-grants-1990_01
Patent number
US04891375

Reaction notes

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