6-Thiophen-3-yl-2-(2-trimethylsilanylethoxymethyl)-4-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one → 4-(1H-Benzimidazol-2-yl)-6-thiophen-3-yl-2H-pyridazin-3-one

HRID 12285

Reaktionsgleichung

Reaktionsgleichung von HRID 12285
[S:1]1[CH:5]=[CH:4][C:3]([C:6]2[CH:7]=[C:8]([C:21]3[N:25](COCC[Si](C)(C)C)[C:24]4[CH:34]=[CH:35][CH:36]=[CH:37][C:23]=4[N:22]=3)[C:9](=[O:20])[N:10](COCC[Si](C)(C)C)[N:11]=2)=[CH:2]1>ClCCl.FC(F)(F)C(O)=O.C(S)(S)C>[NH:25]1[C:24]2[CH:34]=[CH:35][CH:36]=[CH:37][C:23]=2[N:22]=[C:21]1[C:8]1[C:9](=[O:20])[NH:10][N:11]=[C:6]([C:3]2[CH:4]=[CH:5][S:1][CH:2]=2)[CH:7]=1

Komponenten

5

Edukt 1

HCID 686802276-Thiophen-3-yl-2-(2-trimethylsilanylethoxymethyl)-4-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one

Produkt 1

HCID 1359787884-(1H-Benzimidazol-2-yl)-6-thiophen-3-yl-2H-pyridazin-3-one

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6344DichloromethaneLösungsmittelHCID 6422Trifluoroacetic acidLösungsmittelHCID 336451,1-EthanedithiolLösungsmittel

Versuchsvorschrift

30 mg of 6-thiophen-3-yl-2-(2-trimethylsilanylethoxymethyl)-4-[1-(2-trimethylsilanyl -ethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one is dissolved in a mixture of dichloromethane (1 ml) and trifluoroacetic acid (1 ml), 18 μl of ethanedithiol are added, and the resulting solution is stirred at room temperature for 18 hours. After the solvent has been distilled off, the crude product is purified by preparative RP-HPLC (0-100% acetonitrile (+0.05% formic acid) in water (+0.05% formic acid)).

Aufarbeitung

  1. additionare added
  2. distillationAfter the solvent has been distilled off
  3. customthe crude product is purified by preparative RP-HPLC (0-100% acetonitrile (+0.05% formic acid) in water (+0.05% formic acid))

Quellen und Nachweise

ORD-Eintrag
ord-a0bb0e36af1c4605afc2d9a01c94eb29
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07727989B2

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