Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations
2021; American Chemical Society; Volume: 40; Issue: 11 Linguagem: Inglês
10.1021/acs.organomet.1c00216
ISSN1520-6041
AutoresSarah Maier, Steve P. Cronin, Manh-Anh Vu Dinh, Zheng Li, Michael Dyballa, Michał Nowakowski, Matthias Bauer, Deven P. Estes,
Tópico(s)Catalytic Alkyne Reactions
ResumoPlatinum hydride species catalyze a number of interesting organic reactions. However, their reactions typically involve the use of high loadings of noble metal and are difficult to recycle, making them somewhat unsustainable. We have synthesized surface-immobilized Pt–H species via oxidative addition of surface OH groups to Pt(PtBu3)2 (1), a rarely used immobilization technique in surface organometallic chemistry. The hydride species thus made were characterized by infrared, magic-angle spinning nuclear magnetic resonance, and X-ray absorption spectroscopies and catalyzed both olefin isomerization and cycloisomerization of a 1,6 enyne (5) with a high selectivity and low Pt loading.
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