Diiodomethane → HCID 59250036, Verbindung

HRID 2091695Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2091695
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-a50083587a9d474795016d79a442b367
Quelldatensatz
uspto-grants-2013_05
Patentnummer
US08440664B2

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