Water → HCID 50941659, Verbindung

HRID 604363Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 604363
Br[C:2]1[S:3][CH:4]=[CH:5][C:6]=1[C:7]([O:9]C)=O.Cl.[NH2:12][C:13]1[CH:18]=[C:17]([C:19]([O:21][CH3:22])=[O:20])[CH:16]=[CH:15][C:14]=1B(O)O.C([O-])(=O)C.[Na+].O>CN(C=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[O:9]=[C:7]1[C:6]2[CH:5]=[CH:4][S:3][C:2]=2[C:14]2[CH:15]=[CH:16][C:17]([C:19]([O:21][CH3:22])=[O:20])=[CH:18][C:13]=2[NH:12]1

Komponenten

7

Edukt 4

HCID 962WaterHCID 517045Sodium AcetateHCID 164270832-Amino-4-(methoxycarbonyl)benzeneboronic acid hydrochlorideHCID 53302196Methyl 2-bromothiophene-3-carboxylate

Produkt 1

HCID 50941659HCID 50941659, VerbindungAusbeute 50 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)KatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

In a microwave vessel, methyl 2-bromo-3-thiophene carboxylate (1.0 eq, 260 mg, 1.18 mmol), 2-amino-4-(methoxycarbonyl)phenylboronic acid hydrochloride (1.1 eq, 300 mg, 1.30 mmol), sodium acetate (3.0 eq, 292 mg, 3.56 mmol) and PdCl2(dppf) (0.05 eq, 31 mg, 0.059 mmol) were mixed together in anhydrous DMF (2 ml). The mixture was heated in a microwave oven at 120° C. for 10 nm. Water was added and the solid filtered and dried. The material was suspended in CH2Cl2, filtered and dried to afford methyl 4-oxo-4,5-dihydrothieno[3,2-c]quinoline-7-carboxylate as a yellow solid (152 mg, 50% yield). LCMS (ES): 95% pure, m/z 260 [M+1]+; 1H NMR (CDCl3, 400 MHz) δ 3.99 (s, 3H), 7.54 (d, J=5.2, 1H), 7.79 (d, J=4.8, 1H), 7.86 (d, J=8.4, 1H), 7.91 (dd, J=8.4, J=1.6, 1H), 8.03 (d, J=1.2, 1H) ppm.

Aufarbeitung

  1. filtrationthe solid filtered
  2. customdried
  3. filtrationfiltered
  4. customdried

Quellen und Nachweise

ORD-Eintrag
ord-7d4e08153f7044739b84585dcbd2a6b9
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07910600B2

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