Triethylamine → 5-chloro-N-(trans-2-(hydroxymethyl)cyclohexyl)thiophene-2-sulfonamide

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Reaktionsgleichung

Cl.[NH2:2][C@@H:3]1[CH2:8][CH2:7][CH2:6][CH2:5][C@H:4]1[CH2:9][OH:10].C(N(CC)CC)C.[Cl:18][C:19]1[S:23][C:22]([S:24](Cl)(=[O:26])=[O:25])=[CH:21][CH:20]=1>ClCCl>[Cl:18][C:19]1[S:23][C:22]([S:24]([NH:2][C@@H:3]2[CH2:8][CH2:7][CH2:6][CH2:5][C@H:4]2[CH2:9][OH:10])(=[O:26])=[O:25])=[CH:21][CH:20]=1

Komponenten

Reaktionsbedingungen

Temperatur: 0 °C

Versuchsvorschrift

To a suspension of trans-2-aminocyclohexylmethanol hydrochloride (214 mg, 1.30 mmol) and triethylamine (0.538 mL, 3.9 mmol) in 5 mL dichloromethane at 0° C. was added a solution of 5-chlorothiophene-2-sulfonyl chloride (0.267 mL, 1.23 mmol) in 1 mL dichloromethane. The reaction was stirred at 0° C. for 30 min and at room temperature for 30 min. The crude reaction mixture was purified by flash chromatography on silica gel using a gradient of 0 to 100% ethyl acetate in hexane to give 5-chloro-N-(trans-2-(hydroxymethyl)cyclohexyl)thiophene-2-sulfonamide (330 mg, 84%). 1H NMR (400 MHz, CDCl3) δ ppm 7.40 (d, J=4.03 Hz, 1H), 6.91 (d, J=4.03 Hz, 1H), 5.24 (d, J=7.30 Hz, 1H), 3.86 (d, J=11.33 Hz, 1H), 3.32-3.48 (m, 1H), 3.05 (d, J=6.55 Hz, 1H), 2.32 (br. s., 1H), 1.72-1.83 (m, 1H), 1.58-1.73 (m, 3H), 1.11-1.36 (m, 5H). MS [M+H]+=310; [M+Na]+=332.

Aufarbeitung

customThe crude reaction mixture
customwas purified by flash chromatography on silica gel using a gradient of 0 to 100% ethyl acetate in hexane

Quellen und Nachweise

ORD-Eintrag: ord-47fb74ca083945aeb8e3a8453697561a
Quelldatensatz: uspto-grants-2011_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07977362B2

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