Methyl 2-bromothiazole-5-carboxylate → Methyl 2-(pyridin-2-yl)thiazole-5-carboxylate

Participants

Reaction Steps

To a suspension of 2-bromo-1,3-thiazole-5-carboxylic acid methyl ester (0.5 g, 2.25 mmol) and Pd(PPh3)4 (0.13 g, 0.11 mmol) in THF (12.5 ml) was added bromo-(pyridine-2-yl)-zinc (6.75 ml, 0.5M THF solution) under inert gas atmosphere. The reaction mixture was irradiated under microwave conditions at 120° C. for 10 min. The solvent was removed and the product was obtained after purification by silica gel chromatography using a heptane/ethyl acetate gradient as yellow crystals (0.34 g, 68%) MS: M=221.2 (M+H)+

Provenance & Evidence