1,2-Diaminocyclohexane, trans- → methyl 1-(3-(dimethylamino)phenyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylate

Participants

Reaction Conditions

Reaction Steps

0.038 g (0.2 mmol) of cuprous iodide, 0.891 g (4.2 mmol) of potassium phosphate, 0.40 g (2 mmol) of 3-bromo-N,N-dimethylaniline and 0.24 cm3 (2 mmol) of trans-1,2-cyclohexanediamine were added, under an argon atmosphere, to 0.405 g (2.3 mmol) of methyl 1H-pyrrolo[2,3-b]pyridine-3-carboxylate in solution in 0.3 cm3 of dodecane and 6 cm3 of dioxane. After stirring at a temperature in the region of 110° C. for 48 h, the reaction mixture was concentrated to dryness under reduced pressure (2.7 kPa) to give a residue which was taken up in 20 cm3 of dichloromethane. The resulting organic solution was washed with 20 cm3 of 0.1N hydrochloric acid and filtered, then dried over magnesium sulfate and concentrated to dryness under reduced pressure (2.7 kPa). Methyl 1-(3-(dimethylamino)phenyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylate, characterized by LC/MS (m/z 296 [MH]+), was thus obtained, which was used directly in the following stage.

Provenance & Evidence