New Schiff base complexes of ruthenium(III) and their use as catalysts for O-allyl systems isomerization |
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| Authors: | Magdalena Szypa Magdalena Urbala Zbigniew Rozwadowski Teresa Dziembowska |
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| Institution: | (1) Institute of Organic Chemical Technology, Szczecin University of Technology, Pułaski St. 10, 70-322 Szczecin, Poland;(2) Institute of Chemistry and Environmental Protection, Szczecin University of Technology, Al. Piastow St. 42, 71-065 Szczecin, Poland |
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| Abstract: | Seven new ruthenium(III) complexes of the general formula RuCl(PPh3)LL′] · xH2O (LL′ = ONNO] = symmetrical and unsymmetrical Schiff base derivatives of trans-1,2-diaminocyclohexane and 2-hydroxynaphthaldehyde as well as R-salicylaldehydes, x = 0–3) have been synthesized. The complexes were characterized by physico-chemical and spectroscopic techniques. The catalytic
activities of the complexes in the isomerization reaction of selected O-allyl systems, i.e., 1,4-diallyloxybutane and 4-allyloxybutan-1-ol have been studied. Some of the complexes showed high efficiency
and E-stereoselectivity in double bond migration of allyl group to 1-propenyl group and high selectivity of isomerization of allyloxyalcohol
to cyclic acetal. |
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