Dimethylformamide → 4-Chloro-6,7-dimethoxyquinoline-3-carboxamide

Participants

Reaction Conditions

Reaction Steps

A stainless steel cylinder was charged with 4-chloro-3-iodo-6,7-dimethoxyquinoline (0.200 g, 0.572 mmol), palladium (II) acetate (0.013 g, 0.057 mmol), 1,3-bis(diphenylphosphino)propane (0.047 g, 0.11 mmol), DMF (2 mL), and 1,1,1,3,3,3-hexamethyldisilazane S (0.37 g, 0.48 mL, 2.3 mmol). The cylinder was sealed and pressurized with CO gas at 30 psi. The system was heated at 100° C. for 1.5 h and then cooled to RT. The mixture was concentrated to afford an orange solid. This material was triturated with dichloromethane and the resulting precipitate was filtered and dried to afford 4-chloro-6,7-dimethoxyquinoline-3-carboxamide as an off-white solid. MS (ESI, pos. ion) m/z: 267.0 (M+H). Mass Calc'd for Cl2H11ClN2O3: 266.

Provenance & Evidence