Synthesis of Mo(IV) para-Substituted Styrene Complexes and an Exploration of Their Conversion to 1-Phenethylidene Complexes

Article Chemistry, Multidisciplinary

Tungstacyclopentane Ring Contraction Yields Olefin Metathesis Catalysts

Maxime Boudjelel et al.

Summary: Exposure of a specific tungstacyclopentane complex to ethylene leads to the formation of propylene and a new tungstacyclobutane complex. The reaction can be explained by the formation of intermediate complexes, including a methyl-substituted tungstacyclobutane complex. These findings are important for understanding ethylene-involved olefin metathesis reactions.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Multidisciplinary

Ring Contraction of a Tungstacyclopentane Supported on Silica: Direct Conversion of Ethylene to Propylene

Jessica Rodriguez et al.

Summary: This passage describes the reaction of W(NAr) ((C4H8)-C-13) (OSiPh3)(2) (1) with partially dehydroxylated silica at 700 degrees C. The results show that the reaction outcome is highly influenced by the reaction conditions. Different compounds are formed as products, and their formation is affected by light and heating treatment.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Multidisciplinary

Interconversion of Molybdenum or Tungsten d2 Styrene Complexes with d0 1-Phenethylidene Analogues

Sumeng Liu et al.

Summary: In a series of reactions involving transition metal complexes, the addition of PhNMe2H+X- can facilitate the interconversion between Mo(NAr)(styrene)(OSiPh3)(2) and Mo(NAr)(CMePh)(OSiPh3)(2), leading to the formation of the intermediate 1-phenethyl cation, and this conversion process may involve multiple intermediate steps of protonation and deprotonation.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Inorganic & Nuclear