Table 1.
| ||||
---|---|---|---|---|
Entry | ArX | Cat. [mol%] | Product | Yield [%] |
1 | 0.05 | 98 | ||
2[b] | 0.05 | 88 | ||
3[c] | 0.05 | 90 | ||
4[d] | 0.1 | 91 | ||
5[e] | 0.1 | 96 | ||
6 | 0.05 | 91 | ||
7 | 0.25 | 96 | ||
8 | 0.25 | 99 | ||
9 | 0.25 | 76 | ||
10 | 0.25 | 87 | ||
11 | 0.25 | 74 | ||
12 | 0.05 | 97 | ||
13 | 0.05 | 95[f] |
Reactions were conducted with a 1:1 ratio of metal to ligand, 1 mmol of both ArX and thiol, and 1.1 equiv of LiHMDS at 110°C in toluene (1.5 mL) requiring 2–4 h to complete.
Reaction performed with NaOtBu as base.
Reaction conducted in DME.
Reaction performed at 90°C.
Reaction required 12 h to complete.
TBAF (2 equiv) was added to the crude mixture and stirred 30 min at RT.