Diisopropylethylamine → [2-(2,6-Dimethyl-4-prop-1-ynyl-phenyl)-3-oxo-4-(2-pyridylmethyl)cyclopenten-1-yl]isopropylsulfanylformate

Participants

Reaction Steps

To a solution of the 2-(2,6-dimethyl-4-prop-1-ynyl-phenyl)-4-(2-pyridylmethyl)cyclopentane-1,3-dione (0.100 g, 0.302 mmol) in dichloromethane (3.02 mL) was added N-ethyl-N-isopropyl-propan-2-amine (1.51 mmol, 0.265 mL). The reaction was then cooled in the freezer for 30 minutes before addition of S-isopropyl chlorothioformate (0.075 ml, 0.603 mmol), and then the reaction mixture was stirred overnight at room temperature. The reaction was then washed with water, dried and reduced in vacuo. The crude product was then purified by column chromatography, eluting with acetonitrile and dichloromethane, to give the desired product (23 mg, 18%). The product was characterised by HPLC, as follows.

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