Montedison S.p.a.

Ausimont S.r.l.

Ausimont

Candy S.p.a.

Alessandro Malacrida

Maurizio A Beretta

Darryl D DesMarteau

Antonio Marraccini

Giorgio Guglielmo

Giorgio Bornengo

Stefano Campolmi

Stefan P Kotun

Raffaele Ungarelli

Loris Sogli

Giovanni Gustalla

Gian Franco Pregaglia

Lamberto Roberti

Leonardo Sergi

Antonio Acri

Fabio Graziottin

Eros De Noia

Mauro Bossi

Luca Appiano

Massimo Dugo

Process for the preparation of halogenated polyethers of the general formula: ##STR1## wherein X=Cl or F, R.sub.F and R'.sub.F either equal to or different from each other, are selected from fluorinated alkyl radicals with from 1 to 20 carbon atoms, cycloalkyl, heterocyclic, alkylcycloalkyl or cycloalkylalkyl radicals, having from 5 to 20 carbon atoms, said radicals possibly containing also other halogen atoms different from fluorine and possibly ethereal oxygen atoms, by reaction with a fluoroxy or chloroxy compound of the formula: R'.sub.F OX with a fluorovinylether of the general formula: R.sub.F O--CF.dbd.CF.sub.2.

Process for the preparation of halogenated polyethers

A process for preparing fluorinated compounds belonging to the classes:

Process for preparing fluorinated compounds, and novel products

Process for preparing fluorinated compounds

By reacting 3,3,4,4-tetrafluoro-2-(trifluoromethyl)-1,2-oxazetidine (I) with a Lewis acid, in particular SbF.sub.5, three novel fluorinated compounds (II), (III) and (IV) are obtained: ##STR1## The compounds are useful as lubricants.

Novel fluorinated compounds and process for preparing them

Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyl-trimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a compound of the formula (I):

Process for the preparation of (2,2)-paracyclophane and derivatives

Mono- and bis-hypofluorites respectively of formula: FO.sub.2 S--R.sub.f --CF.sub.2 OF and FOCF.sub.2 --R'.sub.f --CF.sub.2 OF wherein R.sub.f is perfluoroalkylene or perfluorochloroalkylene and R'.sub.f is a perfluoroalkylene or perfluorooxyalkylene, and process for preparing them, which is conducted continuously, at a temperature from 0.degree. to 60.degree. C. and comprises starting from the respective acyl fluorides ##STR1## by reaction of fluorine in the gas phase in the presence of a catalyst consisting of K, Rb, Cs or Ba fluoride, preferably supported on a metal material.

Hypofluorites and bis-hypofluorites, and process for preparing same

Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a dialkylether of mono- and poly-ethylene glycols having the formula:

There is disclosed a process for the preparation of halogenated (2,2)-paracyclophanes by Hofmann elimination, in an alkaline medium, from p.methylbenzyltrimethylammonium hydroxide halogen-substituted in the nucleus.

Process for the preparation of halogenated (2,2)-paracyclophanes and

Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p.-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a ketone of the formula:

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Sovico, Italy

Alessandro Malacrida