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Direct observation of Ru-alkylidene forming into ethylene in ring-closing metathesis from hyperpolarized ¹H NMR
- Kim, Yaewon, Chen, Chia-Hsiu, Hilty, Christian
- Chemical communications 2018 v.54 no.34 pp. 4333-4336
- ambient temperature, chemical reactions, ethylene, ethylene production, nuclear magnetic resonance spectroscopy, protons
- Ring-closing metathesis was monitored using real-time NMR of ¹H hyperpolarized olefins at room temperature. By applying a selective saturation to an observable intermediate, its protons were found to transfer to ethylene. The intermediate was thus identified as a Ru-alkylidene species, which appears in the ethylene formation pathway.