AI Article Synopsis
- Low-valent molybdenum PNP pincer complexes were examined as catalysts for the semihydrogenation of alkynes, specifically focusing on the synthesis of certain complexes like PNP Mo(CO) and NNP Mo(CO)(PPh).
- The study involved using a cyclohexyl-substituted complex to convert diphenylacetylene derivatives into corresponding alkenes, achieving high diastereoselectivities (up to 91:9).
- Mechanistic investigations suggest that the process operates through an outer-sphere mechanism that involves cooperation between the metal and ligand.
Article Abstract
Low-valent molybdenum PNP pincer complexes were studied as catalysts for the semihydrogenation of alkynes. For that purpose, Bu-substituted PNP complexes PNP Mo(CO) () and PNP Mo(CO) () and the NNP complex NNP Mo(CO)(PPh) (()-) were synthesized and characterized. By utilizing the cyclohexyl-substituted complex PNPMo(CO)(CHCN) (), several diphenylacetylene derivatives are transformed to the corresponding ()-alkenes with good to very good diastereoselectivities (up to 91:9). Mechanistic experiments indicate an outer-sphere mechanism including metal-ligand cooperativity.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9490815 | PMC |
| http://dx.doi.org/10.1021/acs.organomet.1c00709 | DOI Listing |
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