Sodium Carbonate → N-(2-fluorophenyl)[5-(6-methylbenzothiazol-5-yl)(2-thienyl)]carboxamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of (5-bromo(2-thienyl))-N-(2-fluorophenyl)carboxamide (9, 21 mg, 0.07 mmol), 6-methyl-5-(4,4,5,5-tetramethyl(1,3,2-dioxaborolan-2-yl))benzothiazole (14) (19 mg, 0.07 mmol), tetrakis(triphenylphosphine)-palladium(0) (Pd(Ph3P)4, 8 mg) and sodium carbonate (22 mg) in 0.5 ml DME, 0.5 ml EtOH and 0.25 ml water was heated under Ar in microwave reactor at 110° C. for 30 min. The reaction mixture was worked up with EA/brine. Org. phase was concentrated and then subjected to prep HPLC chromatography to furnish 23.4 mg of N-(2-fluorophenyl)[5-(6-methylbenzothiazol-5-yl)(2-thienyl)]carboxamide (16) as yellow solid (yield: 90.7%; purity>95%). LC-MS: calcd. for C19H13FN2OS2: 369 (M+1).

Herkunft & Nachweise