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| Entry | Catalyst | Catalyst/metal loading | Additional data | T (°C) | t (h) | Yield of T2 (%) | Ref |
|---|---|---|---|---|---|---|---|
| 1 | CF3SO3H | 30 mol% | Excess of C6H5NO2 as oxidant | 25 | 0.2 | >99a | (1121) |
| 2 | Pd(OTFA)2 | 5 mol% | 1.5 eq. 2,6-tBu2pyridine, 2 eq. CuCl2, DMF as solvent | 80 | 16 | 61b | (1099) |
| 3 | Pd(OAc)2 | 10 mol% | 4 eq. CuCl2, 9 eq. 2,6-lutidine, DMF as solvent | 90 | 3 | 39a | (1101) |
GC yield without use of internal standard.
Analyzed by GC using dodecane as a standard.
