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5-bromo-7-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazole → (6-chloro-pyrimidin-4-yl)-[7-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazol-5-yl]-methanone

HRID 469306
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 469306
Br[C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([CH3:11])[CH:10]=1)[N:7]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[N:6]=[CH:5]2.C([Li])CCC.CON(C)[C:28]([C:30]1[CH:35]=[C:34]([Cl:36])[N:33]=[CH:32][N:31]=1)=[O:29]>C1COCC1>[Cl:36][C:34]1[N:33]=[CH:32][N:31]=[C:30]([C:28]([C:2]2[CH:3]=[C:4]3[C:8](=[C:9]([CH3:11])[CH:10]=2)[N:7]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[N:6]=[CH:5]3)=[O:29])[CH:35]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 581812085-bromo-7-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazoleHCID 581812166-Chloro-pyrimidine-4-carboxylic acidmethoxy-methyl-amideHCID 178418339Butyllithium

Produkt 1

HCID 58181210(6-chloro-pyrimidin-4-yl)-[7-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazol-5-yl]-methanone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel
2×

Reaktionsbedingungen

Temperatur
-75 °C

Versuchsvorschrift

Under an argon atmosphere 0.34 g (1.00 mmol) 5-bromo-7-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazole in 10 mL THF were cooled to −75° C., mixed with 0.70 mL (1.1 mmol) of a 1.6 molar n-butyllithium solution and stirred for 1 h at −75° C. Then 0.25 g (1.1 mmol) 6-chloro-pyrimidine-4-carboxylic acidmethoxy-methyl-amide, dissolved in a little THF, were added dropwise. The cooling bath was removed and the mixture was heated to 0° C. and stirred for a further hour in the ice bath. The mixture was stirred with saturated sodium hydrogen carbonate solution, extracted with EtOAc, the organic phase was dried and evaporated down. The residue was purified by flash chromatography.

Aufarbeitung

  1. additionwere added dropwise
  2. customThe cooling bath was removed
  3. temperaturethe mixture was heated to 0° C.
  4. stirringstirred for a further hour in the ice bath
  5. stirringThe mixture was stirred with saturated sodium hydrogen carbonate solution
  6. extractionextracted with EtOAc
  7. customthe organic phase was dried
  8. customevaporated down
  9. customThe residue was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-79699a7416d048da97bd66966e2eff2c
Quelldatensatz
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08629137B2

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