Cesium carbonate → (NZ)-N-[5-methyl-3-(4-methylsulfanylphenyl)-1,3-thiazol-2-ylidene]pyrrolidine-1-carboxamide

Participants

Reaction Conditions

Reaction Steps

To a 4 mL vial equipped with a septum cap and stir bar was added N-(5-methyl-1,3-thiazol-2-yl)pyrrolidine-1-carboxamide (50 mg, 0.24 mmol), copper(I) trifluoromethanesulfonate benzene complex (23.8 mg, 0.05 mmol), 5-chloro-1,10-phenanthroline (20.3 mg, 0.09 mmol) and cesium carbonate (84.8 mg, 0.26 mmol). The mixture was placed under a nitrogen atmosphere. (4-Bromophenyl)(methyl)sulfane (0.28 mmol) in 1-methyl-2-pyrrolidinone (1.0 mL) was added to the mixture. The reaction mixture was heated at 120° C. for overnight. A solution of concentrated ammonium hydroxide/water (1:2, 1 mL) was added and the mixture was filtered and solvent removed under reduced pressure. The residue was purified by reverse phase HPLC (C8, gradient 10-100% acetonitrile/water/0.1% trifluoroacetic acid).

Provenance & Evidence