Diisopropylamine → HCID 59375684, compound

Participants

Reaction Conditions

Reaction Steps

9-bromo-4-iodo-6-[(1,2,2-trimethylpropyl)amino]benzo[c]-1,6-naphthyridin-1(2H)-one (5.03 g, 10.06 mmol), copper(I) iodide (0.230 g, 1.207 mmol), Pd(allyl)Cl dimer (0.221 g, 0.603 mmol) and tri(2-furyl)phosphine (0.280 g, 1.207 mmol) were combined in a 10-dram vial that was then flushed with nitrogen and kept under a nitrogen atmosphere. MeCN (101 ml) was then added followed by diisopropylamine (4.30 ml, 30.2 mmol) and cyclopropylacetylene (2.57 ml, 30.2 mmol). The resulting solution was then heated to 45° C. and stirred in the dark for 30 min. Then, the reaction was poured into ethyl acetate (350 mL) and washed with sat NaHCO3, water, brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resulting oil was purified by column chromatography on silica gel, eluting with EtOAc/Hexanes to afford the title compound as a pale yellow solid. LRMS (ESI) calc'd for (C23H25BrN3O) [M+H]+, 438.1; found 438.0.

Provenance & Evidence