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Survey of Protecting Groups for the Benzylic Alcohol of the Aromatic Iodide.
 | ||
|---|---|---|
| entry | R | product (yield, %) |
| 1 | THP | 43 (72) |
| 2 | EE | 48 (28) |
| 3 | MME | 49 (26) |
| 4b | TMS | 50 (36) |
| 5c | TMS | 50 (52) |
| 6 | Piv | 51 (75) |
Yield corresponds to isolated product.
The reaction was heated to 80 °C for 2 h.
The reaction was heated to 110 °C for 1 h.
