| Autor: |
Connor W, Frye, Dominic T, Egger, Errikos, Kounalis, Adam J, Pearce, Yukun, Cheng, Ian A, Tonks |
| Rok vydání: |
2021 |
| Zdroj: |
Chemical science. 13(5) |
| ISSN: |
2041-6520 |
| Popis: |
α-Diimines are commonly used as supporting ligands for a variety of transition metal-catalyzed processes, most notably in α-olefin polymerization. They are also precursors to valuable synthetic targets, such as chiral 1,2-diamines. Their synthesis is usually performed through acid-catalyzed condensation of amines with α-diketones. Despite the simplicity of this approach, accessing unsymmetrical α-diimines is challenging. Herein, we report the Ti-mediated intermolecular diimination of alkynes to afford a variety of symmetrical and unsymmetrical α-diimines through the reaction of diazatitanacyclohexadiene intermediates with C-nitrosos. These diazatitanacycles can be readily accessed |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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