Acetamide → N-{4-[4-(2-Trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-acetamide

HRID 532537Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 532537
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3[CH2:13][C:14]4[S:15][CH:16]=[CH:17][C:18]=4[C:11]=3[N:10]([CH2:19][O:20][CH2:21][CH2:22][Si:23]([CH3:26])([CH3:25])[CH3:24])[N:9]=2)=[CH:4][CH:3]=1.[C:27]([NH2:30])(=[O:29])[CH3:28].C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1.CC([O-])=O.CC([O-])=O.[Pd+2]>[CH3:24][Si:23]([CH3:26])([CH3:25])[CH2:22][CH2:21][O:20][CH2:19][N:10]1[C:11]2[C:18]3[CH:17]=[CH:16][S:15][C:14]=3[CH2:13][C:12]=2[C:8]([C:5]2[CH:6]=[CH:7][C:2]([NH:30][C:27](=[O:29])[CH3:28])=[CH:3][CH:4]=2)=[N:9]1

Komponenten

7

Edukt 4

HCID 178AcetamideHCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 866991956-(4-Bromo-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene

Produkt 1

HCID 86699196N-{4-[4-(2-Trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-acetamideAusbeute 71 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 167845palladium(II) acetateKatalysatorHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture of the corresponding intermediate 6-(4-Bromo-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene (0.45 g, 1.0 mmol), acetamide (0.15 g, 2.5 mmol), Cs2CO3 (2 M, 3.0 mL), Xantphos (58 mg, 0.1 mmol) and Pd(OAc)2 (22 mg, 0.1 mmol) in dioxane (5 mL) was heated at 100° C. for 8 hr. The solution was cooled to room temperature and extracted with ethyl acetate. The target product was purified by gravity column chromatography (50% EtOAc in hexane) to give N-{4-[4-(2-Trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-acetamide as brown solid in 71% yield.

Aufarbeitung

  1. temperatureThe solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. customThe target product was purified by gravity column chromatography (50% EtOAc in hexane)

Quellen und Nachweise

ORD-Eintrag
ord-a61eb7abd00840baaad0ee2995474ed3
Quelldatensatz
uspto-grants-2014_10
Patentnummer
US08853207B2

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