Potassium Carbonate → 1-[(Naphthalen-2-yl)methyl]-4-(1,3-thiazol-2-yl)piperazine

HRID 1763452

Reaktionsgleichung

Br[CH2:2][C:3]1[CH:12]=[CH:11][C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=1.C(=O)([O-])[O-].[K+].[K+].[S:19]1[CH:23]=[CH:22][N:21]=[C:20]1[N:24]1[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]1>CN(C)C=O>[CH:4]1[C:5]2[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=2)[CH:11]=[CH:12][C:3]=1[CH2:2][N:27]1[CH2:28][CH2:29][N:24]([C:20]2[S:19][CH:23]=[CH:22][N:21]=2)[CH2:25][CH2:26]1

Komponenten

Reaktionsbedingungen

Temperatur: 150 °C

Versuchsvorschrift

To a solution of 22.1 g (0.1 mole) of 2-bromomethylnaphthalene in 150 ml of dimethylformamide, there were added successively 10.7 g (0.101 mole) of dry potassium carbonate and 17.2 g (0.101 mole) of 1-(2-thiazolyl)-piperazine. The resulting suspension was heated at 150° C. for 10 hours; the salt which had formed was then filtered off and the dimethylformamide was evaporated off under reduced pressure. There was obtained a brown crystalline residue which was washed with water and suction filtered off. The resulting 29 g of crystals were recrystallized in 150 ml of ethanol to give 20 g of 1-(2-naphthylmethyl)-4-(2-thiazolyl)-piperazine as beige crystals melting at 83°-84° C.

Aufarbeitung

customthe salt which had formed
filtrationwas then filtered off
customthe dimethylformamide was evaporated off under reduced pressure
customThere was obtained a brown crystalline residue which
washwas washed with water and suction
filtrationfiltered off
customThe resulting 29 g of crystals were recrystallized in 150 ml of ethanol

Quellen und Nachweise

ORD-Eintrag: ord-0952dee630b848dca5b8564c50eba470
Quelldatensatz: uspto-grants-1978_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US04112092

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