Diiodomethane → HCID 59250036, Verbindung

HRID 1926625Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1926625
N[C:2]1[S:6][C:5]([C:7]([O:9][CH2:10][CH3:11])=[O:8])=[C:4]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:13]=2[Cl:19])[C:3]=1[C:20]#[N:21].[I:22]CI.N(OCCC(C)C)=O>C(#N)C>[C:20]([C:3]1[C:4]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:13]=2[Cl:19])=[C:5]([C:7]([O:9][CH2:10][CH3:11])=[O:8])[S:6][C:2]=1[I:22])#[N:21]

Komponenten

5

Edukt 3

HCID 6346DiiodomethaneHCID 8053Isoamyl NitriteHCID 59250010HCID 59250010, Verbindung

Produkt 1

HCID 59250036HCID 59250036, VerbindungAusbeute 37,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
38 °C

Versuchsvorschrift

To a suspension of ethyl 5-amino-4-cyano-3-(2,4-dichlorophenyl)thiophene-2-carboxylate (2.92 g, 0.00856 mol) in acetonitrile (10 mL) was added diiodomethane (2.41 mL, 0.0300 mol) under an atmosphere of argon and was heated at 38° C. Isoamyl nitrite (2.61 g, 0.0214 mol) was added dropwise and the reaction mixture was cooled to room temperature and stirred for one hour. The reaction was concentrated in vacuo and column chromatography was performed to yield the title compound (1.44 g, 37%) as an orange solid. 1H NMR (400 MHz, d1-chloroform) δ: 7.53 (d, 1H, J=2.00 Hz), 7.38-7.34 (m, 1H), 7.21 (d, 1H, J=8.28 Hz), 4.25-4.15 (m, 2H), 1.21-1.16 (m, 3H).

Aufarbeitung

  1. temperaturethe reaction mixture was cooled to room temperature
  2. concentrationThe reaction was concentrated in vacuo and column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-eedb09bbae8446e6aae87cc52cbc8030
Quelldatensatz
uspto-grants-2012_05
Patentnummer
US08183240B2

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