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Full-Text Articles in Inorganic Chemistry
The Reactivity Of Ditetrelenes Towards Organophosphorus Oxides, Maissa Belcina
The Reactivity Of Ditetrelenes Towards Organophosphorus Oxides, Maissa Belcina
Electronic Thesis and Dissertation Repository
The reactivity of tetramesityldisilene 4 and tetramesityldigermene 5 towards organophosphorus oxides was explored in this thesis. The reaction of dialkyl and diarylphosphine oxides and phosphites with ditetrelenes 4 and 5 resulted in a 1,3-addition to form diorganodisilyl and digermyl phosphinites 27, 28, 31, 32 and disilyl phosphites 35 and 36. The 1,3-addition resulted in a mild two electron reduction of the P(V) centre of the phosphine oxide and phosphite to a P(III) centre in the products, without the use of heat or a catalyst. The reaction of organophosphorus oxides provides another example of a main group …
The Addition Of Alkynes To Low-Valent Silicon Compounds: A Mechanistic Study, Andrew T. Henry
The Addition Of Alkynes To Low-Valent Silicon Compounds: A Mechanistic Study, Andrew T. Henry
Electronic Thesis and Dissertation Repository
The mechanism for the addition of alkynes to low-valent silicon compounds was investigated in this thesis using a cyclopropyl alkyne mechanistic probe (1.31). The addition of alkyne 1.31 to the asymmetrically-substituted disilene 1.37 was investigated. The structures of the products obtained indicate the reaction proceeds through a stepwise mechanism with a biradical intermediate and the dipole moment of the disilene bond was not sufficient to alter the reaction mechanism.
The addition of alkyne 1.31 to the NHC-stabilized silylene 1.38 was also investigated. The structure of the product formed in the reaction lead to two conclusions: that silylene 1.38 …