Table 1.
Entry | R | Conditions | Yield [%] |
---|---|---|---|
1 | SEt (15) | (4-BrC6H4)3NSbCl6, 0 °C → rt | 10% |
2 | SEt (15) | BSP, Tf2O, TTBP, −60 °C | ND |
3 | SEt (15) | NIS, TfOH, −20 °C | 16% |
4 | SEt (15) | NIS, AgOTf, −20 °C | 21% |
5 | F (16) | Cp2HfCl2, AgClO4, 0 °C | <5% |
6 | OH (18) | Ph2SO, Tf2O, −60 °C | ND |
7 | OC(NH)CCl3 (19) | TMSOTf, −30 °C | 19% |
Key: ND=None Detected