Water → 7-(1-azidoethyl)-3-methyl-6-(4-methylphenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

Reaktionsgleichung

[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1Br)[CH3:5])=[N+:2]=[N-:3].[CH3:18][C:19]1[CH:24]=[CH:23][C:22](B(O)O)=[CH:21][CH:20]=1.C(=O)([O-])[O-].[Na+].[Na+].O>O1CCOCC1.C(OCC)(=O)C.Cl[Pd](Cl)(P(C(C)(C)C)(C(C)(C)C)C1C=CC(N(C)C)=CC=1)P(C1C=CC(N(C)C)=CC=1)(C(C)(C)C)C(C)(C)C>[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1[C:22]1[CH:23]=[CH:24][C:19]([CH3:18])=[CH:20][CH:21]=1)[CH3:5])=[N+:2]=[N-:3]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

To a mixture of 7-(1-azidoethyl)-6-bromo-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (0.080 g, 0.25 mmol) and (4-methylphenyl)boronic acid (0.042 g, 0.31 mmol) in 1,4-dioxane (2 mL) was added 1 N solution of sodium carbonate in water (0.38 mL, 0.38 mmol) and dichloro(bis{di-tert-butyl[4-(dimethylamino)phenyl]phosphoranyl})palladium (0.011 g, 0.015 mmol). The mixture was heated at 100° C. overnight. After cooling to room temperature, the mixture was diluted with ethyl acetate, washed with water, dried over MgSO4, concentrated and then purified on silica gel (0-25% ethyl acetate/hexane) to give the desired product (50 mg). LCMS calculated for C16H16N5OS (M+H)+: m/z=326.1. Found: 326.0.

Aufarbeitung

temperatureAfter cooling to room temperature
washwashed with water
dry with materialdried over MgSO4
concentrationconcentrated
custompurified on silica gel (0-25% ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag: ord-c8efbae1e7e5415e9dca6356f393c41d
Quelldatensatz: uspto-grants-2016_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09434746B2

Notizen zur Reaktion

Wird geladen…