About: Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions

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About: Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Starting from (R,R)-tartaric acid we have synthesized eight N- and N,N-(di-)alkyl dicarbohydrazides 3 and 4, by two general methods, which were able to form two M2L and ML complexes. These target compounds were further used as model nitrogen ligands coordinating Cu2+ ions. Whereas the formation of the first type of complexes is linearly dependent on the increasing electron-donating ability of the appended alkyls, the ML complexes were significantly affected by both electronic and steric effects of the alkyl groups used. These observations were supported by theoretical calculations of both complex types. The target compounds were also employed as chiral nitrogen ligands in the asymmetric version of the Henry reaction. Modest chemical yields and low enantioselectivities were attained for ligand 3a bearing one methyl group on each terminal nitrogen atom. Structure-property relationships were also evaluated to gain useful guidelines for ligand design targeting catalysts for asymmetric reactions. Starting from (R,R)-tartaric acid we have synthesized eight N- and N,N-(di-)alkyl dicarbohydrazides 3 and 4, by two general methods, which were able to form two M2L and ML complexes. These target compounds were further used as model nitrogen ligands coordinating Cu2+ ions. Whereas the formation of the first type of complexes is linearly dependent on the increasing electron-donating ability of the appended alkyls, the ML complexes were significantly affected by both electronic and steric effects of the alkyl groups used. These observations were supported by theoretical calculations of both complex types. The target compounds were also employed as chiral nitrogen ligands in the asymmetric version of the Henry reaction. Modest chemical yields and low enantioselectivities were attained for ligand 3a bearing one methyl group on each terminal nitrogen atom. Structure-property relationships were also evaluated to gain useful guidelines for ligand design targeting catalysts for asymmetric reactions. (en)
Title	Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions (en)
skos:prefLabel	Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions Synthesis and coordination ability of tartrate-derived N-alkyl dicarbohydrazides towards Cu2+ ions (en)
skos:notation	RIV/00216275:25310/12:39899356!RIV15-MSM-25310___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GA203/08/0208), S
http://linked.open...iv/cisloPeriodika	September
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kousalová, Jana Bureš, Filip Pytela, Oldřich
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	172926
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/12:39899356
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	copper ion; complex; ligand; tartaric acid (en)
http://linked.open.../riv/klicoveSlovo	tartaric acid copper ion complex ligand
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[3795EB7137AE]
http://linked.open...i/riv/nazevZdroje	ARKIVOC
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Inorganic-organic hybrid materials based on metal organophosphonates
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	9
http://linked.open...iv/tvurceVysledku	Bureš, Filip Pytela, Oldřich Kousalová, Jana
http://linked.open...ain/vavai/riv/wos	000315857000004
issn	1551-7004
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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