Tributylphosphine → 5-chloro-3-(3-chlorobenzyl)-N-[1-(4-cyanophenyl)ethyl]thiophene-2-carboxamide

HRID 870037

Reaktionsgleichung

Reaktionsgleichung von HRID 870037
[Cl:1][C:2]1[S:6][C:5]([C:7]([OH:9])=O)=[C:4]([CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([Cl:17])[CH:12]=2)[CH:3]=1.[N:18]([CH:21]([C:23]1[CH:30]=[CH:29][C:26]([C:27]#[N:28])=[CH:25][CH:24]=1)[CH3:22])=[N+]=[N-].C(C1C=CC(C#N)=CC=1)(=O)C.C1([Se][Se]C2C=CC=CC=2)C=CC=CC=1.C(P(CCCC)CCCC)CCC>C(#N)C>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:18][CH:21]([C:23]2[CH:30]=[CH:29][C:26]([C:27]#[N:28])=[CH:25][CH:24]=2)[CH3:22])=[O:9])=[C:4]([CH2:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([Cl:17])[CH:12]=2)[CH:3]=1

Komponenten

7

Edukt 5

HCID 13831TributylphosphineHCID 15460Diphenyl diselenideHCID 740444'-CyanoacetophenoneHCID 45140204HCID 45140204, VerbindungHCID 57900982HCID 57900982, Verbindung

Produkt 1

HCID 579009815-chloro-3-(3-chlorobenzyl)-N-[1-(4-cyanophenyl)ethyl]thiophene-2-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a suspension of 5-chloro-3-(3-chlorobenzyl)thiopbene-2-carboxylic acid from Example 1, Step 6 (230 mg, 0.801 mmol), 4-(1-azidoethyl)benzonitrile (146 mg, 0.848 mmol) [prepared according to Thompson et al. J. Org. Chem. 1993, 58, 5886, after reduction of commercially available 4-acetylbenzonitrile] and diphenyl diselenide (549 mg, 1.76 mmol) in acetonitrile at r.t. under N2 was added tributylphosphine (217 μL, 0.881 mmol, 1.1 eq) dropwise (suspension dissolved, slightly exothermic) and the mixture was stirred at r.t. for 6 h, quenched with saturated NaHCO3 and extracted with ether. The crude was purified by Combi Flash chromatography system (10-40% EtOAc/hexane) to give the desired product.

Aufarbeitung

  1. customprepared
  2. dissolutiondissolved
  3. customquenched with saturated NaHCO3
  4. extractionextracted with ether
  5. customThe crude was purified by Combi Flash chromatography system (10-40% EtOAc/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-27512fc6ee68476f8bc87d3b9152fbd4
Quelldatensatz
uspto-grants-2015_03
Patentnummer
US08969394B2

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