Functionalised crown ethers, their preparation and use as ion complexation agents

摘要

Functionalised crown ethers, process for their preparation and their application as complexing agents for ions, especially cations. The functionalised crown ethers according to the invention correspond to the general formula (I): IMAGE in which: n = 3, 4 or 5, m = 1, 2, 3 or 4 and the groups F, which are identical or different, are chosen from: IMAGE in which: R1, R2 and R3 are chosen from H, aryl, cyano and halo and the groups R, -SOR and SO2R where R denotes a C1-10 alkyl, C1-10 alkenyl or C1-10 alkynyl group, the said groups being linear or branched and being optionally capable of being substituted by one or more radicals chosen from hydroxyl, alkoxy, aryloxy, alkoxycarbonyl, carbonyl, halo, aryl or nitrile radicals or an organometallic group of formula -M(X)3 in which M = Si or Sn and the symbols X, which are identical or different, are chosen from C1-5 alkyl, C1-5 alkenyl, C1-5 alkynyl or aryl radicals; R', R'', R''' and R'''', which are identical or different, are chosen from H, C1-5 alkyl, C1-5 alkenyl, C1-5 alkynyl or aryl, it being additionally possible for the radicals R' and R'' on the one hand and R''' and R'''' on the other hand to form together a carbonyl group; Y is chosen from Si, Sn, O, SO, SO2, -NA-, with A chosen from H, C1-5 alkyl, C1-5 alkenyl, C1-5 alkynyl or aryl; Z denotes a direct bond, Si, Sn or else a -(C=O)- or -O-(C=O)- group, q = 0 or 1 0 /= p + q + r + (number of atoms in the main chain of Z) /= 4.