Table 4. GC Analysis of the Products Formed upon Reaction of in Situ Generated Mono- and Bis-Phenylated Iron(II)–SciOPP with Bromocycloheptane at 25 °Ca.
PhMgBr (equiv) | time (s) | Chp-Ph (%) | cycloheptene (%) |
---|---|---|---|
1 | 5 | 84 | 22 |
1 | 30 | 84 | 22 |
1 | 90 | 84 | 22 |
2 | 5 | 87 | 93 |
2 | 30 | 88 | 95 |
2 | 90 | 89 | 96 |
Yields are with respect to iron. A minor amount of biphenyl is also observed (∼3% and 10% for the 1 equiv and 2 equiv PhMgBr reactions, respectively).