Reaktion #68341

Reaktionsgleichung

NaH

ethyl3-formyl-2-isopropyl-1H-indole-6-carboxylate

Compound 34

ethyl3-formyl-2-isopropyl-1H-indole-6-carboxylate

3-(bromomethyl)pyridine

→

title compound

Ethyl 3-Formyl-2-isopropyl-1-(pyridin-3-ylmethyl)-1H-indole-6-carboxylate

Lösungsmittel

DMF

EtOAc

Reaktionsbedingungen

Aufarbeitung

1. 1
   Waschenwashed with H2O, brine
2. 2
   Trocknendried over Na2SO4
3. 3
   Einengenconcentrated in vacuo
4. 4
   SonstigeThe residue was purified by chromatography on silica gel (0→70% EtOAc-hexanes)

Vorschrift

To a solution of ethyl3-formyl-2-isopropyl-1H-indole-6-carboxylate (Compound 34, 1.00 g, 3.86 mmol) in DMF (50 ml) was added NaH (463 mg, 19.3 mmol) and and 3-(bromomethyl)pyridine (2.62 g, 15.4 mmol). The reaction was stirred at 60° C. for 12 h, diluted with EtOAc, washed with H2O, brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by chromatography on silica gel (0→70% EtOAc-hexanes) to yield the title compound as a light yellow solid.

Quelle