Intramolecular nucleophilic substitution in C6F5 moiety. The fluoride-dialkylamino exchange in decafluorodiphenlamino moietyстатья
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Аннотация:The reactions of [In(NEt2)(3)](2) and Sb(NEt2)(3) With an equimolar amount of decafluorodiphenylamine (DFDPA, LH) lead to the indium or antimony amides [(C6F5)(2)NIn(NEt2)(2)](2) (1) and (C6F5)(2)NSb(NEt2)(2) (2). Compound 2 rearranged further to give monofluoride Et2NSb(F)[N(o-Et2N-C6F4)(C6F5)] (3) and then difluoride F2Sb[N(o-Et2N-C6F4)(2)](4). The hydrolysis of 4 gave free ligand HN(o-Et2N-C6F4)(2) (5). Closely related HN(o-Me2N-C6F4)(2) (6) was prepared from the reaction of Bi(NMe2)(3) with DFDPA. The reactions of LiN(C6F5)(2)center dot THF with metal halides gave Sb[N(C6F5)(2)](3) (7), Me3Sb(Br)[N(C6F5)(2)] (8), Me3Sb(Cl)[N(C6F5)(2)] (9), Me3Sb[N(C6F5)(2)](2) (10), [Li(THF)(2)][In{N(C6F5)(2)}(3)Cl] (11). The X-ray structural investigations of 2 and 8 are presented. (C) 2009 Elsevier B.V. All rights reserved.