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Substrate scope of the cyanomethylation of trifluorome-thyl ketones. Reaction conditions: All reactions were performed with trifluoromethyl ketone 1 (0.3 mmol), cyanoacetic acid 2 (0.6 mmol) and triethylamine (0.06 mmol) in 1 mL of THF at 60 °C. See SI for details.
