Nacnac(Bn)MgOtBu: a diketiminate-based catalyst for the polymerisation of rac-lactide with slight isotactic preference
Drouin, F; Whitehorne, TJ; Schaper, F
HERO ID
1400010
Reference Type
Journal Article
Year
2011
Language
English
PMID
| HERO ID | 1400010 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Nacnac(Bn)MgOtBu: a diketiminate-based catalyst for the polymerisation of rac-lactide with slight isotactic preference |
| Authors | Drouin, F; Whitehorne, TJ; Schaper, F |
| Journal | Dalton Transactions (Online) |
| Volume | 40 |
| Issue | 6 |
| Page Numbers | 1396-1400 |
| Abstract | The reaction of N,N'-dibenzyl-2-amino-4-imino-pent-2-ene, nacnac(Bn)H, with 1 or 2 equiv. of MgnBu₂ afforded the homoleptic complex nacnac(Bn)₂Mg. The reaction of nacnac(Bn)H with Mg(N(SiMe₃)₂)₂ yielded nacnac(Bn)MgN(SiMe₃)₂, which reacted with tert-butanol to form nacnac(Bn)MgOtBu. The latter complex crystallizes as an alkoxide bridge dimer and is active in the ring-opening polymerisation of rac-lactide. Polymerisations at room temperature afforded atactic polylactide, while polymerisations at -17 and -26 °C afforded polylactide with a small isotactic bias (P(m) = 0.52, and 0.55, respectively). |
| Doi | 10.1039/c0dt01294g |
| Pmid | 21206944 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |