Etude de la diaddition de l'acétate d'allyle sur les télogènes chlorofluorés possédant deux groupements CCl3 en extrémité de chaîne |
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| Authors: | Bruno Amduri Bernard Boutevin Christophe Lecrom Yves Pietrasanta Roland Parsy |
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| Institution: | Bruno Améduri,Bernard Boutevin,Christophe Lecrom,Yves Pietrasanta,Roland Parsy |
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| Abstract: | The redox catalyzed addition of compounds such as Cl3C? CF2? CCl3 and Cl3C? CF2? CCl2? CH2? CHCl? CH2? OCOCH3 to allyl acetate was studied with the purpose of obtaining telechelic products. RuCl2P(C6H5)3]3 was used as catalyst, and its action was compared to that of cooper- or iron-based catalysts. The products were isolated and their structures studied by means of 13C, 19F and 1H NMR spectroscopy. The reaction mechanism was studied to improve the yield of the diaddition product for its utilisation as monomer in polycondensation reactions. It was found that the low reactivity for a second addition is not due to the presence of a chlorine atom in β-position of the acetate function. When allyl acetate was replaced by allyl bromide or chloride in the first addition, the second addition to allyl acetate occurred normally. |
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