Perfluoro(methylvinyl ether) appears as a colorless gas. Heavier than air. Easily liquefied. Contact with the liquid may cause frost bite by evaporative cooling. May asphyxiate by displacing air. A flame may flash back from the source of ignition to the source of a leak. Under prolonged exposure to fire or heat containers may rupture violently and rocket.
Addition reaction of various azoles to perfluoromethyl vinyl ether
作者:Kirill I. Petko、Andrey A. Filatov
DOI:10.1007/s10593-021-02965-9
日期:2021.6
The addition reaction of perfluoromethyl vinylether to various azoles – derivatives of pyrrole, imidazole, pyrazole, indole, benzotriazole, carbazole, and triazole has been demonstrated. The reaction conditions depended both on melting point and nucleophilicity of the heterocycle. The obtained products are hydrolytically and thermally stable, have highly lipophilic moiety and can serve as useful precursors
Synthesis of Mono- and Bis(fluoroalkyl)pyrimidines from FARs, Fluorinated Acetoacetates, and Malononitrile Provides Easy Access to Novel High-Value Pyrimidine Scaffolds
作者:Etienne Schmitt、Bruno Commare、Armen Panossian、Jean-Pierre Vors、Sergiy Pazenok、Frédéric R. Leroux
DOI:10.1002/chem.201703982
日期:2018.1.26
A new strategy was developed using fluorinated acetoacetates, malononitrile, and fluoroalkyl amino reagents (FARs) to access unprecedented 4,6‐bis(fluoroalkyl)pyrimidine‐5‐carboxylates, their carboxylic acid analogues, and 4‐amino‐6‐(fluoroalkyl)pyrimidine‐5‐carbonitriles. An efficient cyclization step using suitable amidines was developed under microwave irradiation, providing the desired pyrimidines
Pyrolytic Decarboxylation of Some Derivatives of Perfluorinated Mono- and Dicarboxylic Acids
作者:N. V. Lebedev、V. V. Berenblit、Yu. K. Starobin、V. A. Gubanov
DOI:10.1007/s11167-005-0577-4
日期:2005.10
Pathways of pyrolysis of perfluorinated carboxylic acids are considered in relation to the structure of the acids and reaction conditions. The reaction mechanism is discussed.
关于全氟羧酸热解途径的考虑,涉及酸的结构和反应条件。讨论了反应机制。
Fluorination of polyhalogenated unsaturated compounds with vanadium pentafluoride
Vanadiumpentafluoride reacts with polyfluorinated and polychlorinated olefins, alkadienes, cycloalkenes and cyclodienes in CFCl3 or without a solvent at −25° to 100°C, forming products of addition of two fluorine atoms across the CC bond.
A process for preparing acylfluorides by reaction of carbonyl fluoride COF
2
with compounds having general formula:
T=CR
1
R
2
(I)
wherein:
T is O or CF
2
R
1
and R
2
, equal or different, are F or a R(O)
t
radical,
wherein R=linear or branched C
1
-C
7
(per)fluoroalkyl, optionally containing one or more oxygen atoms,
t is an integer equal to zero or 1;
wherein a catalyst supported on porous compound is used, the catalyst being selected from: CsF, RbF, KF, AgF, each optionally in admixture with one or more of the others.