[C:1]1([CH:7]=[CH:8][C:9]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)=O)C=CC=[CH:3][CH:2]=1.C(O)(=O)C.[C-]#[N:22].[K+]>C(OCCO)C.O>[CH3:3][CH2:2][CH2:1][CH2:7][CH2:8][CH2:9][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16]#[N:22]To the chalcone, 187, (17.95 g, 54.7) mmol) in 2-ethoxyethanol (150 mL) at 55° C. was added acetic acid (4 mL) followed by slow addition of potassium cyanide (5.3 g, 81 mmol) in water. The solution was stirred at 105° C. for 0.25 hour. The solution was cooled and treated with water (25 mL). The mixture was filtered to collect the solid. The solid was washed repeatedly with 70% ethanol (50 mL), air dried, and then dried in vacuo to give the nitrile 12.7 g (68%) as a yellow solid. The nitrile was identified by 1H NMR, IR, MS, and microanalysis.
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