1481-36-3Relevant articles and documents
Stabilization of Photocatalytically Active Uranyl Species in a Uranyl - Organic Framework for Heterogeneous Alkane Fluorination Driven by Visible Light
Zhang, Xuan,Li, Peng,Krzyaniak, Matthew,Knapp, Julia,Wasielewski, Michael R.,Farha, Omar K.
, (2020)
When photoactivated, the uranyl ion is a powerful oxidant capable of abstracting hydrogen atoms from nonactivated C-H bonds. However, the highly reactive singly reduced [UVO2]+intermediate is unstable with respect to disproportionation to the uranyl dication and insoluble tetravalent uranium phases, which limits the usage of uranyl ions as robust photocatalysts. Herein, we demonstrate that photoactivated uranyl ions can be stabilized by immobilizing and separating them spatially in a uranyl-organic framework heterogeneous catalyst, NU-1301. The visible-light-photoactivated uranyl ions in NU-1301 exhibited longer-lived U(V) and radicals than those in homogeneous counterparts, as evidenced by X-ray photoelectron spectroscopy and time-dependent electron paramagnetic resonance, leading to higher turnovers and enhanced stability for the fluorination of nonactivated alkanes.
MELAMINE-HYDROGEN FLUORIDE SOLUTION. A HIGHLY EFFECTIVE AND CONVENIENT HYDROFLUORINATION REAGENT OF ALKENES
Yoneda, Norihiko,Abe, Takafumi,Fukuhara, Tsuyoshi,Suzuki, Akira
, p. 1135 - 1136 (1983)
A solution of 14percent (w/w) melamine in 86percent (w/w) hydrogen fluoride has been found to be stable, and more convenient and effective hydrofluorinating reagent for alkenes than those of other organic amine-hydrogen fluoride reagents.
Efficient protocol for the SO2F2-mediated deoxyfluorination of aliphatic alcohols
Lee, Cayo,Lai, Joey,Epifanov, Maxim,Wang, Cindy Xinyun,Sammis, Glenn M.
supporting information, (2021/09/28)
Alkyl fluorides are prevalent in both the pharmaceutical and agrochemical industries. As such, there has been significant interest over the past 40 years in the development of new synthetic methods to access these important fluorinated motifs. Herein we report the sulfuryl fluoride-mediated deoxyfluorination of alcohols using room temperature reaction conditions in only an hour. A wide range of primary aliphatic alcohols were efficiently converted to the corresponding fluoride in 46-70% isolated yields. Secondary alcohols were also effectively deoxyfluorinated in 50–92% yields. Chiral secondary alcohols were cleanly converted to the corresponding alkyl fluoride with only a minor deterioration of the enantioenrichment. A steroid derivative also underwent deoxyfluorination in 50% yield and 5.9:1 dr, with the major product resulting from net inversion of the stereocenter.
Manufacturing method for amino-substituted phosphazene compound, manufacturing method for electrolyte solution for nonaqueous secondary battery, and manufacturing method for nonaqueous secondary battery
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Page/Page column 25; 26, (2018/08/07)
Provided are a manufacturing method for an amino-substituted phosphazene compound including reacting a fluorinated phosphazene compound and an amine compound in presence of a compound having a fluorine trapping function; and synthesizing a compound obtained by substituting the amine compound for the fluorinated phosphazene compound, a manufacturing method for an electrolyte solution for a nonaqueous secondary battery using this, and a manufacturing method for a nonaqueous secondary battery.