[NH2:1][C:2]1[C:12]([CH3:13])=[CH:11][C:10](Br)=[CH:9][C:3]=1[C:4]([O:6][CH2:7][CH3:8])=[O:5].[Cu](C#N)[C:16]#[N:17]>CN(C)C(=O)C>[NH2:1][C:2]1[C:12]([CH3:13])=[CH:11][C:10]([C:16]#[N:17])=[CH:9][C:3]=1[C:4]([O:6][CH2:7][CH3:8])=[O:5]The above-described method (Example 2) was repeated to react ethyl 2-amino-5-bromo-3-methylbenzoate (2.00 g, 7.65 mmol) with copper cyanide (0.70 g, 7.80 mmol) in N,N-dimethylacetamide at 160° C. for 8 hours. Following working up similar to Example 2, ethyl 2-amino-5-cyano-3-methylbenzoate (1.30 g, 80.2% of theory, 96.3 area % LC) was obtained as a brown solid.
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