2-Mercaptobenzoic Acid → 2-(4-Methoxyphenylthio)benzoic acid

HRID 2373114

Reaktionsgleichung

[C:1]([OH:10])(=[O:9])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)[SH:4].I[C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1.C(=O)([O-])[O-].[K+].[K+]>[Cu].CN1CCCC1=O>[CH3:19][O:18][C:15]1[CH:16]=[CH:17][C:12]([S:4][C:3]2[CH:5]=[CH:6][CH:7]=[CH:8][C:2]=2[C:1]([OH:10])=[O:9])=[CH:13][CH:14]=1

Komponenten

Reaktionsbedingungen

Temperatur: 165 °C

Versuchsvorschrift

First, 2-(4-methoxyphenylthio)benzoic acid was prepared. A stirred mixture of thiosalicylic acid (10.0 g, 65 mmol), 4-iodoanisole (15.18 g, 65 mmol), potassium carbonate (19.72 g, 143 mmol), copper powder (0.82 g, 13 mmol), and N-methylpyrrolidinone (100 mL) was deaerated by sparging with nitrogen for 10 min, heated at 165° C. for 18 h, and then cooled to ambient. The reaction mixture was poured onto a mixture of 500 g of ice plus 40 mL or concentrated HCl. The resulting precipitate was collected, washed with water, and dried. The product was purified by recrystallization from a mixture of water, ethanol, and tetrahydrofuran. A white powder was obtained, mass: 12.06 g (71% of theory).

Aufarbeitung

customby sparging with nitrogen for 10 min
temperaturecooled
additionThe reaction mixture was poured onto a mixture of 500 g of ice plus 40 mL or concentrated HCl
customThe resulting precipitate was collected
washwashed with water
customdried
customThe product was purified by recrystallization from a mixture of water, ethanol, and tetrahydrofuran
customA white powder was obtained

Quellen und Nachweise

ORD-Eintrag: ord-aff65ac74f8440e3ac3a2bece001f2f0
Quelldatensatz: uspto-grants-2008_12
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07459263B2

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