Sodium Bicarbonate → HCID 67519692, compound

Participants

Reaction Steps

To a solution of 4-bromo-2,5-dimethyl-1,3-thiazole (commercially available from Apollo Scientific Ltd, 410 mg, 2.135 mmol) in 1,2-Dimethoxyethane (DME) (6.5 mL), Tetrakis(triphenylphosphine)palladium (123 mg, 0.107 mmol) was added and the mixture was stirred at rt for 30 minutes. Then [2,4-bis(methyloxy)-5-pyrimidinyl]boronic acid (commercially available from Aldrich, 916 mg, 4.48 mmol) and 1M Sodium bicarbonate aqueous solution (5.83 mL, 5.83 mmol) were added. The reaction mixture was then stirred at 90° C. for 2.5 h and left stirring at rt overnight. The day after the mixture was diluted with DCM and washed with water. Organic layer was dried and concentrated under vacuum. Crude product was first purified by flash chromatography (eluent: Cy/AcOEt 65:35) and further purified by SCX cartridge affording 5-(2,5-dimethyl-1,3-thiazol-4-yl)-2,4-bis(methyloxy)pyrimidine with minor unknown impurities that was used in the next step without further purification.

Provenance & Evidence