p-Toluidine → HCID 131735555, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-bromo-N-tert-butyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (150 mg, 351 μmol), p-toluidine (56.4 mg, 526 μmol), BINAP (10.9 mg, 17.5 μmol), palladium (II) acetate (19.7 mg, 87.7 μmol) and sodium tert-butoxide (84.3 mg, 877 μmol) in DMF (1 mL) and toluene (500 μL) was heated in a microwave at 140° C. for 20 min. The reaction mixture was diluted with water then extracted into ethyl acetate (3×). The combined organic extracts were washed with brine then dried over magnesium sulfate. Purification by chromatography (silica, 20-45% ethyl acetate in hexanes) gave N-tert-butyl-2-(p-tolylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (80 mg, 116 μmol, 33%) as a brown gum. MS (EI/CI) m/z: 454.4 [M+H].

Provenance & Evidence