摘要:
Perfluorinated xylenes and perfluoro-para-cymene undergo hydrodefluorination under the action of Zn(Cu)-DMF-H2O. Hydrogen enters mainly at the benzyl position of para-dialkylbenzenes and at the para position to perfluoroalkyl groups of perfluorinated ortho- and meta-xylenes. The process presumably involves radical anions as intermediates. A product of perfluoro-4-methylbenzyl radical trapping by hexene-1 was obtained Quantum-chemical calculations of radical anions of the compounds under investigation have been carried out. (C) 1997, Elsevier Science Ltd.