Sodium Carbonate → tert-butyl 4-(3-methoxy-4-nitrophenyl)-5,6-dihydropyridine-1(2H)-carboxylate

Participants

Reaction Conditions

Reaction Steps

Into a 5 mL microwave tube was charged tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (0.247 g, 0.800 mmol), 4-chloro-2-methoxy-1-nitrobenzene (0.100 g, 0.533 mmol), dichlorobis(triphenylphosphine)palladium (II) (0.019 g, 0.027 mmol), sodium carbonate (0.113 g, 1.066 mmol) in water (0.889 ml) and dimethoxyethane (2.3 ml). The reaction mixture was heated at 130° C. for 20 minutes in a Biotage microwave reactor. The solids were filtered off and the filtrate was purified by reverse phase HPLC using 0.1% ammonium hydroxide. MS (DCI(+)) m/e 335.2 (M+H)+.

Provenance & Evidence