Pd NC-catalyzed 2,3-disubstituted indole synthesis of various halo anilines 1 and internal alkynes 2^a.

Entry	Aryl halide	Alkyne	Product	Yieldb (%)
1				77
2				71
3				80
4				66
5				88 (4 : 1)
6				95
7				49
8				30 (2 : 1)

^aConditions: same as in Table 1, entry 1.

^bIsolated yields.