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Titanium imido complexes stabilised by bis(iminophosphoranyl)methanide ligands: the influence of N-substituents on solution dynamics and reactivity.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Normand, Adrien T. Massard, Alexandre Richard, Philippe R. Canovas, Coline Balan, Cédric Picquet, Michel Auffrant, Audrey Gendre, Pierre Le |
| Copyright Year | 2014 |
| Abstract | Terminal titanium imido complexes of the general formula [Ti(N(t)Bu)Cl{CH(Ph2PNR)2}] 4 (R = Ph, (i)Pr, (t)Bu) are reported. These compounds were synthesized from the corresponding Li adducts 3 of BIPMH (bis(iminophosphoranyl)methanide) and Mountford's complex [Ti(N(t)Bu)Cl2(Py)3]. The crystal structures of two of the Ti complexes (R = Ph, (t)Bu) and two of the Li compounds (R = (i)Pr, (t)Bu) are reported. Dynamic solution NMR spectroscopy reveals a dynamic isomerisation process in the case of the Ti complex 4c (R = (t)Bu). DFT studies showed that this dynamic process comes from steric repulsion between the imido ligand and the (t)Bu N-substituents on the BIPMH ligand. Complexes 4 were tested in alkyne hydroamination; 4a (R = Ph) displayed modest catalytic activity in the reaction of aniline with phenylacetylene. |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c4dt00746h |
| PubMed reference number | 24819602 |
| Journal | Medline |
| Volume Number | 43 |
| Issue Number | 40 |
| Alternate Webpage(s) | https://gargantua.polytechnique.fr/siatel-web/linkto/mICYYYT(JeYS |
| Alternate Webpage(s) | http://pubs.rsc.org/en/content/getauthorversionpdf/C4DT00746H |
| Alternate Webpage(s) | https://doi.org/10.1039/c4dt00746h |
| Journal | Dalton transactions |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
