Sodium Carbonate → Tert-butyl 4-(2-(2-fluoroethylthio)benzo[d]thiazol-6-yl)phenyl(methyl)carbamate

HRID 1965859Notizen

Reaktionsgleichung

Br[C:2]1[CH:14]=[CH:13][C:5]2[N:6]=[C:7]([S:9][CH2:10][CH2:11][F:12])[S:8][C:4]=2[CH:3]=1.[CH3:15][N:16]([C:24]1[CH:29]=[CH:28][C:27](B2OC(C)(C)C(C)(C)O2)=[CH:26][CH:25]=1)[C:17](=[O:23])[O:18][C:19]([CH3:22])([CH3:21])[CH3:20].C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:12][CH2:11][CH2:10][S:9][C:7]1[S:8][C:4]2[CH:3]=[C:2]([C:27]3[CH:26]=[CH:25][C:24]([N:16]([CH3:15])[C:17](=[O:23])[O:18][C:19]([CH3:20])([CH3:21])[CH3:22])=[CH:29][CH:28]=3)[CH:14]=[CH:13][C:5]=2[N:6]=1

Komponenten

Reaktionsbedingungen

Temperatur: 95 °C

Versuchsvorschrift

A mixture of 6-Bromo-2-(2-fluoroethylthio)benzo[d]thiazole (60 mg, 0.2 mmol), tert-butyl methyl(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (68 mg, 0.2 mmol), and tetrakis(triphenylphosphine)palladium (11 mg, 0.01 mmol) in 2 mL dioxane and 0.5 mL of a 1 M Na2CO3 aqueous solution was heated at 95° C. in a microwave reactor for 10 min. After cooling to rt, it was diluted with EtOAc (30 mL) and washed with brine (30 mL), dried over MgSO4 and concentrated. The crude product was purified with silica chromatography (5% to 30% EtOAc in hexane) to afford tert-butyl 4-(2-(2-fluoroethylthio)benzo[d]thiazol-6-yl)phenyl(methyl)carbamate as a clear wax (15 mg, 18%). MS (ESI) m/z 419 (M+H+).

Aufarbeitung

temperatureAfter cooling to rt
washwashed with brine (30 mL)
dry with materialdried over MgSO4
concentrationconcentrated
customThe crude product was purified with silica chromatography (5% to 30% EtOAc in hexane)

Quellen und Nachweise

ORD-Eintrag: ord-ea2baef87c2341bc9a6c5d620b8418d4
Quelldatensatz: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08420052B2

Notizen zur Reaktion

Wird geladen…