In Situ Generation of Ru-Based Metathesis Catalyst. A Systematic Study

Abstract : A systematic study for the in situ generation of Ru-based metathesis catalysts was described. Assembly of commercially available and inexpensive reagents [Ru(p-cymene)Cl-2](2), SIPr center dot HCl, and n-BuLi led to the formation of 18 electron arene-ruthenium complexes that, in the presence of additives such as alkynes, cyclopropenes, and diazoesters, generated highly selective and efficient catalytic systems applicable to a variety of olefin metathesis transformations. Notably, we were able to achieve a productive TON of 4500 for the self-metathesis of methyl oleate, a reaction which could be easily upscaled to 2 kg.
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Daniel S. Mueller, Yann Raoul, Jerome Le Notre, Olivier Baslé, Marc Mauduit. In Situ Generation of Ru-Based Metathesis Catalyst. A Systematic Study. ACS Catalysis, American Chemical Society, 2019, 9 (4), pp.3511-3518. ⟨10.1021/acscatal.9b00244⟩. ⟨hal-02115712⟩

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