HPLC of Formula: 676-96-0. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Trimethylphosphineoxide, is researched, Molecular C3H9OP, CAS is 676-96-0, about A Lewis Base Supported Terminal Uranium Phosphinidene Metallocene. Author is Wang, Deqiang; Wang, Shichun; Hou, Guohua; Zi, Guofu; Walter, Marc D..
A Lewis base supported terminal U phosphinidene, [η5-1,3-(Me3C)2C5H3]2U(:P-2,4,6-tBu3C6H2)(OPMe3) (5), is isolated from the reaction of the U Me chloride [η5-1,3-(Me3C)2C5H3]2U(Cl)Me (4) with 2,4,6-(Me3C)3C6H2PHK in toluene in the presence of Me3PO. Also, the reactivity of the U phospinidene 5 toward small mols. were comprehensively explored. While no reactivity of 5 with internal alkynes is observed attributed to steric hindrance, it readily reacts with various small mols. including isothiocyanates, aldehydes, imines, diazenes, carbodiimides, nitriles, isonitriles, and organic azides, yielding U sulfides, oxides, metallaheterocycles, and imido complexes, in good yields. A Lewis base supported actinide phosphinidene metallocene was isolated and its reactivity toward small mols. was studied. It exhibits a rich reaction chem. toward a variety of heterounsatd. mols. and the steric hindrance imposed by the Cp ligand plays an important role in the formation and reaction chem. of U phosphinidene metallocenes.
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem