3083-25-8Relevant academic research and scientific papers
SYNTHESE D'EPOXYDES ET D'ETHERS GLYCIDIQUES A CHAINE CHLOROFLUOREE
Boutevin, B.,Hugon, J-P.,Pietrasanta, Y.
, p. 357 - 374 (1981)
Epoxides of general formula RFCl-CCl2-CH2-CH(O)CH2 (II,V) (RFCl = Cl; CF3; Cl-(CFCl-CF2)n-) are prepared from chlorohydrines RFCl-CCl2-CH2-CHCl-CH2-OH (I).These chlorhydrines are monoadducts of carbon tetrachloride 1,1,1-trichlorotrifluoroethane, telomers Cl-(CFCl-CF2)n-CCl3, with allyl alcohol.Reactions of these epoxides with lithium aluminium hydride and/or sulfuric acid lead to corresponding secondary alcohols and/or diols.Glycidyl ethers of (I) and (II,n) with epichlorhydrin could not be obtained.However, epichlorhydrin reacts with the more acidic chlorofluorinated alcohol CFCl2-CF2-CH2-OH.Thus the glycidyl ether CFCl2-CF2-CH2-O-CH2-CH(O)CH2 is prepared.
Deplacements homolytiques intramoleculaires: 11 - Thermolyse du peroxyde d'allyle et de t-butyle dans les solvants halogenes
Montaudon, Evelyne,Rakotomanana, Felicien,Agorrody, Maryse,Maillard, Bernard
, p. 375 - 378 (2007/10/02)
2,3-Epoxypropanations of dichloromethane, 1,2-dichloroethane, chloroform, carbon tetrachloride and dibromomethane were performed by the thermolysis of allyl t-butyl peroxyde in the appropriate solvent.Besides epoxides, halohydrins were sometimes identified.A free radical bimolecular substitution could explain the formation of the chlorhydrin.
DEPLACEMENTS HOMOLYTIQUES INTRAMOLECULAIRES . 12 - DECOMPOSITION INDUITE DE PEROXYDES ETHYLENIQUES : INFLUENCE DE LA LONGUEUR DE LA CHAINE
Bourgeois, M. J.,Maillard, B.,Montaudon, E.
, p. 5309 - 5320 (2007/10/02)
Products analyses of the thermolyses of the peroxides CH2=CH-(CH2)nOOtBu, 1, (n=1-5) showed that an induced decomposition of 1 occurred for n=1,2,3,4.Free radical additions of THF, carbon tetrachloride, bromotrichloromethane to 1 have been performed at lower temperature; they allowed, through the isolation of an adduct peroxide, at least in one case for each peroxide, to prove that a two-steps mechanism (addition of radical Z. to the double bond, intramolecular homolytic displacement) is involved in the induced decomposition of 1.The order of magnitude of the rate constants of these SHi reactions could be estimated.
Addition radicalaire au peroxyde d'allyle et de t-butyle: synthese d'epoxydes fonctionnels
Montaudon, E.,Rakotomanana, F.,Maillard, B.
, p. 198 - 202 (2007/10/02)
The free radical addition of labile hydrogen solvents to allyl and t-butyl peroxide led to 2,3-epoxypropanation of such compounds with yield over 50percent.
