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ISSN 1998-9539

A Simple Method for Iodination of Benzo- and Dibenzocrown Ethers

Sergei M. Pluzhnik-Gladyr, Ildar M. Rakipov, and Sergei A. Kotlyar@


A. V. Bogatsky Physico-Chemical Institute of National Academy of Sciences of Ukraine, Odessa, 65080, Ukraine


@Corresponding author E-mail:


Iodination of benzo-12-crown-4, benzo-15-crown-5 and benzo-18-crown-6 by equimolar amounts of N-iodosuccinimide
in ethanol in the presence of sulfuric acid additions proceeds quickly and selectively and results in corresponding
4I-iododerivatives with 78-86% yields. Reactivity of [3.3]dibenzo-18-crown-6 slightly differs from that of benzocrown
ethers and diiodide (mixture of cis- and trans-isomers) is obtained with 76% yield.


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