The vapour phase fluorination of trichloroethylene with cobalt trifluoride and with manganese trifluoride

Fluorination of fluoro-cyclobutene with high-valency metal fluoride

“…Alkyl perfluoroalkyl ethers could be also prepared by vic-difluorination of corresponding perfluorovinyl ethers using high-valency metal fluorides [5]. High-valency metal fluorides such as cobalt trifluoride (CoF 3 ), manganese trifluoride (MnF 3 ), silver difluoride (AgF 2 ), cerium tetrafluoride (CeF 4 ) and potassium tetrafluorocobaltate (KCoF 4 ) have been reported to be a mild vic-difluorinating agent of various alkenes compared with elemental fluorine [6][7][8].…”

Saturnene Revealed: X‐ray Crystal Structure of D5d‐C60F20 Formed in Reactions of C60 with AxMFy Fluorinating Agents (A=Alkali Metal; M=3d Metal)

“…It is known that CoF 3 is a more active FA than MnF 3 . [16][17][18] In the present study, this difference is manifested in the FF products of C 60 fluorination under identical conditions: C 60 F 36 was formed primarily along with small amounts of C 60 F 18 and C 60 F 20 when MnF 3 was used, and C 60 F 38 and C 60 F 40 were formed primarily along with some C 60 F 36 when CoF 3 was used. It was also found that LiCoF 4 is a stronger FA than LiMnF 4 .…”

Fluorocarbon Refrigerants and their Syntheses: Past to Present

“…MnF 3 has been used similarly. 284 CoF 3 has been examined in depth by Rasuch, Davis, and Osborne as a reagent to achieve the effective addition of fluorine across halogenated olefins 285 (Scheme 55). PbO 2 /HF has been used by Bissell and Fields to achieve the same transformation, producing 122 and 124a from TCE and 1-chloro-1,2-difluoroethylene, respectively.…”

“…The same authors fluorinated 122a to 123a conventionally using HF. MnF 3 has been used similarly . CoF 3 has been examined in depth by Rasuch, Davis, and Osborne as a reagent to achieve the effective addition of fluorine across halogenated olefins (Scheme ).…”