Triethylamine → Methyl 2-[(2,4-dichlorophenyl)amino]-1-(3-hydroxypropyl)-1H-benzimidazole-7-carboxylate

HRID 1628470

Reaktionsgleichung

[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[NH:9][C:10]([NH:12][C:13]1[C:14]([NH:23][CH2:24][CH2:25][CH2:26][OH:27])=[C:15]([CH:20]=[CH:21][CH:22]=1)[C:16]([O:18][CH3:19])=[O:17])=S.C(N(CC)CC)C.Cl.C(N=C=NCCCN(C)C)C>O1CCCC1.O>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[NH:9][C:10]1[N:23]([CH2:24][CH2:25][CH2:26][OH:27])[C:14]2[C:15]([C:16]([O:18][CH3:19])=[O:17])=[CH:20][CH:21]=[CH:22][C:13]=2[N:12]=1

Komponenten

Reaktionsbedingungen

Temperatur: 50 °C

Versuchsvorschrift

A mixture of methyl 3-({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)-2-[(3-hydroxypropyl)amino]benzoate (1.87 g, 4.37 mmol), triethylamine (0.67 mL), and 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (838 mg, 4.37 mmol) in tetrahydrofuran (15 mL) was stirred at 50° C. for 2 hr. The mixture was diluted with water, concentrated in vacuo, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. The residue was washed with diisopropyl ether to give the title compound as a pale yellow powder (1.67 g, 4.24 mmol, 97%).

Aufarbeitung

concentrationconcentrated in vacuo
extractionextracted with ethyl acetate
washThe combined organic layer was washed with brine
dry with materialdried over anhydrous magnesium sulfate
filtrationfiltered
concentrationconcentrated in vacuo
washThe residue was washed with diisopropyl ether

Quellen und Nachweise

ORD-Eintrag: ord-c3e809efc6a649eab568941852916ec2
Quelldatensatz: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08785460B2

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