Diisopropylethylamine → HCID 58754846, compound

Participants

Reaction Steps

To a mixture of 2-piperidin-1-yl-phenylamine (63.5 mg, 0.360 mmol), potassium 4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylate (as prepared in Example 11, step (d), 100 mg, 0.327 mmol) and PyBroP (152 mg, 0.327 mmol) in 4 mL of 1,2-dichloroethane was added DIEA (171 μL, 0.981 mmol). After stirring at RT for 16 h under Ar, the mixture was treated with 50 mL of EtOAc, washed with H2O (2×10 mL) and brine (10 mL). The organic layer was dried (Na2SO4) and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (5-10% EtOAc/hexane) to afford 118 mg (85%) of the title compound as a white solid. Mass spectrum (ESI, m/z): Calcd. for C22H31N5O2Si, 426.2 (M+H), found 426.1.

Provenance & Evidence