Table 2. Speciation of Complexes 1–5 Obtained by Treatment of 1 by 2 equiv of Li(hmds) in the Presence or the Absence of 2 equiv of 15-C-5 under Various Conditions.
| entry | M (n), additives | t (h) | T (°C) | solvent | light | 1 | 2C6D5 | 3′ | 3″ | Fex0(P,P)y | 4C6D5,D | 5– |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Li (2), 2 equiv 15-C-5 | 72 | 20 | C6D6 | no | 50 | 10 | 25% overalla | 0 | 0 | 5 | |
| 2 | 72 | 20 | C6D6 | yes | 40 | 14 | 0 | 0 | 0 | 40b | 0 | |
| 3 | 22 | 80 | C6D6 | no | 60 | 34 | 0 | 0 | 5 | 0 | traces | |
| 4 | Li (2), no 15-C-5 | 22 | 80 | C6D6 | no | 10 | 0 | 0 | 0 | 30 | 0 | traces |
a
8% 3* were observed.
b
Mixture of cis:trans-4C6D5,D in a ca. 4:3 ratio.