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Showing 1 to 13 of 13 for “"phosphinidene"”.
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Bond Formation Reactions to Phosphorus Using an Electrophilic Phosphinidene Complex
Electrophilic phosphinidene complexes play a central role in organophosphorus chemistry. The chemistry of transient phosphinidene complexes has been well studied, but stable, cationic phosphinidene complexes are not as well understood. Therefore the reactivity of a cationic phosphinidene complex …
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Exploring the Chemistry of Bis(azido)phosphine Chalcogenides and the Pursuit of Isolable Phosphinidene Chalcogenides
… class of two-coordinate phosphorus compound is a phosphinidene sulfide, which has yet to be isolated in the solid-state with an accompanying crystal structure. This dissertation explores strategies towards the synthesis and reactivity of low-coordinate phosphinidene chalcogenide species, and …
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Exploring the Synthesis, Structure, and Reactivity of Phosphorus-Chalcogen Heterocycles
… reactivity. Conversely, the area of phosphinidene chalcogenides, a low-coordinate phosphorus and chalcogen species, have yet to be thoroughly explored. In this context, this dissertation describes the synthesis of a number of phosphorus-chalcogen heterocycles that can be degraded to …
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A Diverse Array of Synthetic Strategies for Phosphorus Group Transfer Chemistry: From Phosphinidenes to Phosphates
… moieties, specifically metaphosphates and phosphinidenes. The work presented here has significant implications for both the fundamental understanding and practical advancement of synthetic inorganic and organic chemistry. Chapters 2 and 3 address the sustainable production and processing of …
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Niobium-mediated synthesis of phosphorus-rich molecules
… phosphorus-rich cluster harbors a niobium phosphinidene unit bound to a niobium-supported P7 cluster. The phosphinidene terminus was found to react with a range of ketones to give phosphaalkene complexes R2C=PP7Nb(OC[2Ad]Mes) 3. These phosphaalkenes are unstable towards intramolecular …
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Liberation of low-coordinate phosphorus species from anthracene-based molecular precursors
… framework that has allowed access to free phosphinidenes, phosphinidene sulfides, and phosphaalkynes. The thermal release of anthracene as a relatively innocuous coproduct allows for studies of these species' reactivities toward new substrates. Where possible, the intermediacy of the …
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Synthesis and characterization of trinuclear metal clusters containing benzynechromium tricarbonylh
… an open Ru3 triangle capped on one face by a g3-phosphinidene moiety and on the other by an unsymmetrically bound benzynechromium tricarbonyl moiety. This is the first example of an aryne to show such unsymmetrical bonding to a Ru3 system. The X-ray crystallographic analysis …
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Synthesis and Reactivity of Phosphorus-Containing Heterocycles and Tetrahedranes
… (A = C₁₄H₁₀, anthracene), a source of ethoxyphosphinidene, followed by formal elimination of ethanol. DPF is a potent diene and readily reacts with dienophiles at room temperature. Mild heating of the corresponding ethylene adduct results in the retro-Diels-Alder reaction. MesN₂PA (Mes = …
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Taming reactive phosphorus intermediates with organic and inorganic carriers
… occurs through the intermediacy of a singlet phosphinidene for the iPr₂N derivative. The [RP] unit could be transferred to CHD, a carbene and an ortho-benzoquinone, with formation of the corresponding anti-7-phosphanorbornene, phosphaalkene and phospholane. The anthracene diphosphorus adduct …