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- 3Phosphorane imide
- 2Bimetallic catalysts
- 2Shen, Jing
- 1Brown, Houston J. S.
- 1Brown, Orain, A
- 1Bunquin, Jeffrey
- 1Clive, Derrick L. J.
- 1Khosravi Hafshejani, Milad
A series of phosphoranimide-supported first-row transition metal clusters were prepared, structurally characterized, and investigated for catalytic hydrogenolysis of carbon-heteroatom bonds. Homoleptic heterocubane clusters, as well as two-dimensional bi- and tetranuclear compounds of manganese,...
Fortuitous characterization of the cationic nickel cluster [Ni4(NPtBu3)4][Li3Br4(Et2O)3] led to the rational syntheses and characterization of the mixed-valence low-coordinate cationic nickel cluster: [Ni4(NPtBu3)4]BPh4 and [Ni4(NPtBu3)4]PF6, and subsequently the preparation of the anionic...
A New Approach to Molecular Hydrodesulfurization Catalysts: Allyl-capped Trialkylphosphoranimide-bridged Late First-row Transition Metal ClustersDownload
A series of new trialkylphosphoranimide allyl-capped clusters [M(ƞ3-allyl)(NPR)3]2, (M = Fe, Co or Ni, R = Et, tBu or Ph) were synthesized. The nickel dimers [Ni(ƞ3-allyl)(NPR3)]2, R = Et, Ph are diamagnetic and have been fully characterized using NMR spectroscopy, X-ray crystallography,...
Increasingly stringent environmental regulations for the sulfur content in fuels pose significant technological challenges for refineries. Current single-stage hydrodesulfurization (HDS) technologies are not efficient enough to achieve ultra-deep levels of sulfur, 10 ppmw S for transportation,...
Conversion of cycloalk-2-enones into 2-methylcycloalkane-1,3-diones - Assessment of various Tamao-Fleming procedures and mechanistic insight into the use of the Me3SiMe2Si unit.Download
Yu, Goujun, Clive, Derrick L. J.
Conjugate addition of Me3SiMe2SiLi to cycloalk-2-en-1-ones, ketalization, Tamao-Fleming oxidation (Bu4NF, then H2O2, KHCO3), TPAP oxidation and acid hydrolysis generates 2-methyl cycloalkane-1,3-diones. Ketalization is needed in order to prevent addition of Me3Si- to the carbonyl. The...
Bimetallicity is known to provide synergistic effects and improve catalytic performance of monometallic counterparts in a variety of applications. Conventional impregnation methods for supported catalyst preparation do not allow for the control of bimetallic nanoparticle structure or size, which...
Natural-gas fuelled catalytic heaters are commonly used in heating industrial space and remote location operations. Industrial units typically contain platinum that provides methane combustion at lower temperatures than non-catalytic burning. This work aimed to find a cost-efficient alternative...
Breaking New Ground with the Suzuki-Miyaura Reaction: Stereoselective Cross-Couplings of 1,1-Diboronyl AlkanesDownload
Synthetic organic chemistry is an area that has seen incredible growth through the years. The level of molecular complexity that can be achieved through available synthetic methods today is remarkable. Still, as the field continues to progress, increasing focus is being placed upon the strategic...
Activity, selectivity and stability enhancements often observed in bimetallic catalysts make them an inseparable part of today’s chemical industry. However, it is usually problematic to understand the real interactions resulting in such improvements due to the lack of control over the bimetallic...
Empowering the Base Metals: Rational Design of Homogeneous Catalysts for Hydrotreatment, and Reduction of Organic UnsaturatesDownload
Hydrocarbon-soluble, low-coordinate, phosphoranimide-supported complexes of the base metals (iron, cobalt and nickel) were developed and evaluated for a range of stoichiometric and catalytic bond-forming and bond-breaking transformations. An unprecedented family of tetrametallic clusters of Co(I)...