14098-26-1Relevant articles and documents
ALKYLATION OF BENZO- AND DIBENZOCROWN ETHERS BY VARIOUS ALCOHOLS
Tashmukhamedova, A. K.,Stempnevskaya, I. A.,Saifullina, N. Zh.,Levkovich, M. G.
, p. 1178 - 1185 (1986)
New alkyl derivatives of benzo-15-crown-5, benzo-18-crown-6, dibenzo-18-crown-6, dibenzo-24-crown-8, and dibenzo-30-crown-10 have been obtained by their alkylation with various alcohols in the presence of polyphosphoric acid.
THE SYNTHESIS OF SOME AROMATIC CROWN ETHER DERIVATIVES AND THEIR ION-SELECTIVE ELECTRODE PROPERTIES
Luboch, Elzbieta,Cygan, Andrzej,Biernat, Jan F.
, p. 2461 - 2472 (1990)
The synthesis of alkyl, nitro and halogeno derivatives of benzo-15-crown-5, benzo-18-crown-6 and naphtho-15-crown-5 has been reported.Also some novel ester type bis(crown ether)s have been prepared.Some of the compounds have been characterized as electroactive substances in PVC membrane ion-selective electrodes.
Preparation of benzo- and polybenzocrown ethers by macrocyclization reactions
Hanes, Robert E.,Lee, Jong Chan,Ivy, Sheryl N.,Palka, Anna,Bartsch, Richard A.
, p. 238 - 248 (2012/11/07)
Macrocyclization of crown ethers and their methods of preparation were explored. We present a robust, scalable method for the preparation of these macrocycles. Additionally, the effect of changing the structures of the precursors was explored to determine whether the 'cut' of bisphenol and dimesylate influenced the course of the reaction as measured by the yield. Further, using catechol derivatives, the method was used for the preparation of monobenzocrown ethers. Interestingly, for the preparation of monobenzocrown ethers, [2+2] adducts were discovered to be significantly contaminating the products. Dimesylates were chosen as the leaving group due to their ease or preparation and the ability to use the unpurified products with no apparent impact on the macrocyclization.