Isolation and Characterization of CH₃OC(O)OOC(O)F from the Reaction CH₃OH + FC(O)OOC(O)F

Abstract

The synthesis of CH 3 OC(O)OOC(O)F is accomplished by the thermal reaction between CH 3 OH and FC(O)OOC(O)F at room temperature. The new peroxide is obtained in pure form after repeated trap-to-trap condensation and it is characterized by NMR and IR spectroscopy and mass spectrometry. Geometrical parameters were studied by ab initio methods [B3LYP/6-31++G(d,p)]. CH 3 OC(O)OOC(O)F is stable for a few hours at room temperature, and it decomposes into CO

Gas-Phase Reaction between CF2O and CF3C(O)OH: Characterization of CF3C(O)OC(O)F

“…CF 2 O was purified by vacuum distillation. 29 The compound CF 3 C(O)OH was obtained from commercial sources (99%, anhydrous) and used without further purification.…”

“…The photoreactor consisted of a one-neck 12 L glass round-bottom flask with a 30 cm long double-walled water-jacketed quartz tube inside, in which a 40 W low-pressure mercury lamp (Heraeus, Hanau) was placed. CF 2 O was purified by vacuum distillation . The compound CF 3 C­(O)­OH was obtained from commercial sources (99%, anhydrous) and used without further purification.…”

“…Our group has extensive experience in the synthesis of fluorocarbooxygenated molecules. − In particular, studies have been carried out on thermal reactions in the gas phase that afforded new species that have been characterized by different techniques and rigorously verified by the kinetic mechanisms proposed. − …”

Reaction of Methyl Fluoroformyl Peroxycarbonate (FC(O)OOC(O)OCH3) with Cl Atoms: Formation of Hydro-ChloroFluoro-Peroxides

“…The synthesis of FC­(O)­OOC­(O)­OCH 3 was carried out following the recipe in ref . Briefly, the reactor was loaded with CH 3 OH and an excess of FC­(O)­OOC­(O)­F.…”

“…Methyl fluoroformyl peroxycarbonate (FC(O)OOC(O)-OCH 3 ) is synthesized from the thermal reaction between FC(O)OOC(O)F and CH 3 OH, and it has been isolated and characterized recently. 11 Such a molecule is of interest since it couples a fluorinated and a hydrogenated radical together, whose combined properties could therefore represent a transition from a purely fluorocarbooxygenated molecule to a hydrogenated one. Its thermal decomposition has been studied by Berasategui et al 12 The rate constants of the homogeneous first-order thermal decomposition fits the Arrhenius equation k exp = (5.4 ± 0.…”