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Dimeric Boronates Derived from the Reaction of Schiff Bases and Boronic Acids

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Author(s): Barba , Victor | Farfán , Norberto | Santillan , Rosa

Journal: Revista de la Sociedad Química de México
ISSN 0583-7693

Volume: 49;
Issue: 2;
Start page: 211;
Date: 2005;
Original page

Keywords: tridentate ligands | boron | Schiff base | macrocyclic chem

ABSTRACT
The one-pot synthesis of dimeric boron complexes is reported. The compounds were obtained by reaction of Schiff bases (tridentate ligands) with trans-β-phenylvinylboronic acid, 3- thiopheneboronic acid and methylboronic acid. Building of the dimeric structures is favored by the presence of intramolecular N→B coordination bonds, resulting in the formation of ten-membered ring heterocycles. An X-ray crystallographic analysis for one of them confirmed the dimeric nature of these compounds.
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