Phospha-Wittig Reagents Rediscovered
| Autor: | Wolfgang Baumann, Jan-Erik Siewert, Malte Fischer, Christian Hering-Junghans, Torsten Beweries, Gupta P, Tim Wellnitz |
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| Rok vydání: | 2020 |
| Předmět: | |
| Popis: | Phospha-Wittig reagents, RPPMe3 (R = Mes* 2,4,6-tBu3-C6H2; MesTer 2,6-(2,4,6-Me3C6H2)-C6H3; DipTer 2,6-(2,6-iPr2C6H3)-C6H3), can be considered as phosphine-stabilized phosphinidenes. In this study we show that PMe3 can be displaced by NHCs or NHOs. Interestingly, phosphinidene-like reactivity results in a subsequent C(sp2)-H activation of the exocyclic CH2 in NHOs. This concept was further extended to allyl-apended NHOs, which results in phosphine-substituted allyl species. |
| Databáze: | OpenAIRE |
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