Table 1.
Entry | Base | PhX | Yield, % |
---|---|---|---|
1 | KOtBu | PhF or PhOTs | No arylation |
2b | KotBu | PhCl | 40 |
3 | KotBu | PhBr | 51 |
4 | KotBu | PhI | 61 |
5 | LiOtBu | PhCl, PhBr or PhOTs | No arylation |
6 | LiOtBu | PhI | 93 |
Substrate (1 equiv), aryl halide (3 equiv), base (2 equiv). Yields are isolated yields.
PhCl (4 equiv), base (3 equiv).