Scheme 5. Isocyanide Variation.
Conditions: o-bromoaniline (1.0 mmol), isocyanide (1.75 mmol), alkyne (2.0 mmol), Pd(OAc)2 (0.05 mmol), Xantphos (0.1 mmol), CuBr (0.15 mmol), Cs2CO3 (2.0 mmol) in DMF (8.0 mL).
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