Diisopropylamine → 2-(Methylthio)-4-[(3-nitrophenyl)ethynyl]pyrimidine

HRID 1157538Notizen

Reaktionsgleichung

I[C:2]1[CH:7]=[CH:6][N:5]=[C:4]([S:8][CH3:9])[N:3]=1.C(NC(C)C)(C)C.[C:17]([C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([N+:25]([O-:27])=[O:26])[CH:20]=1)#[CH:18]>C1COCC1.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:9][S:8][C:4]1[N:3]=[C:2]([C:18]#[C:17][C:19]2[CH:24]=[CH:23][CH:22]=[C:21]([N+:25]([O-:27])=[O:26])[CH:20]=2)[CH:7]=[CH:6][N:5]=1

Komponenten

Reaktionsbedingungen

Temperatur: 25 °C

Versuchsvorschrift

4-Iodo-2-(methylthio)pyrimidine (39.7 g, 0.157 mol) and diisopropylamine (44.2 mL, 0.315 mol) were dissolved in dry THF (720 mL) and argon gas was bubbled through the solution for 20 min. Copper(I) iodide (2.99 g, 14.3 mmol) and bis(triphenylphosphine)palladium dichloride (5.51 g, 7.85 mmol) were added and then 1-ethynyl-3-nitrobenzene (25.4 g, 0.173 mol) in dry THF (100 mL) was added dropwise over about 30 min with the temperature being maintained at about 25° C. Following complete addition, the mixture was stirred at rt overnight. The mixture is filtered and washed with THF. The filtrate is concentrated under reduced pressure. The residue was washed with EtOAc/MeOH to give pale-yellow solid (42 g).

Aufarbeitung

customargon gas was bubbled through the solution for 20 min
additionaddition
filtrationThe mixture is filtered
washwashed with THF
concentrationThe filtrate is concentrated under reduced pressure
washThe residue was washed with EtOAc/MeOH

Quellen und Nachweise

ORD-Eintrag: ord-3fbab6cfe1fe4c10a2daa7d40cf6a5bd
Quelldatensatz: uspto-grants-2010_10
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07807673B2

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