Hydrochloric Acid → Ethyl {[6-(4-Fluorophenoxy)-2-benzothiazolyl]amino}methanethioate

Reaktionsgleichung

[NH2:1][C:2]1[S:3][C:4]2[CH:10]=[C:9]([O:11][C:12]3[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=3)[CH:8]=[CH:7][C:5]=2[N:6]=1.Cl[C:20]([O:22][CH3:23])=[S:21].Cl.N1C=CC=C[CH:26]=1>>[F:18][C:15]1[CH:14]=[CH:13][C:12]([O:11][C:9]2[CH:8]=[CH:7][C:5]3[N:6]=[C:2]([NH:1][C:20](=[S:21])[O:22][CH2:23][CH3:26])[S:3][C:4]=3[CH:10]=2)=[CH:17][CH:16]=1

Komponenten

Edukt 4

HCID 313Hydrochloric Acid

HCID 1049Pyridine

HCID 554404Methyl chloromethanethioate

HCID 219855122-Amino-6-(4-fluorophenoxy)benzothiazole

Produkt 1

HCID 86588974Ethyl {[6-(4-Fluorophenoxy)-2-benzothiazolyl]amino}methanethioateAusbeute 65 %

Versuchsvorschrift

A suspension of 2-amino-6-(4′-fluorophenoxy)-benzothiazole (associated with 2.0 eq of KBr salt, 2.50 g, 5.02 mmol) in 10 mL pyridine was treated dropwise with methyl chlorothioformate (0.65 mL, 7.53 mmol, 01.5 eq). It was stirred at room temperature for about 1 hour, and was poured into 40 mL ice water. The mixture was acidified slowly with 1 M HCl solution. The result precipitate was filtered off, washed with water and MeOH, and dried under vacuum to give 1.18 g (65%) desired compound. LC/MS 334.9 (M+1); LC retention time 3.70 min.