Research output: Contribution to journal › Article › peer-review
Trinuclear (aminonitrone)ZnII complexes as key intermediates in zinc(II)-mediated generation of 1,2,4-oxadiazoles from amidoximes and nitriles. / Bolotin, D.S.; Il'in, M.V.; Novikov, A.S.; Bokach, N.A.; Suslonov, V.V.; Kukushkin, V.Yu.
In: New Journal of Chemistry, Vol. 41, No. 5, 2017, p. 1940-1952.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Trinuclear (aminonitrone)ZnII complexes as key intermediates in zinc(II)-mediated generation of 1,2,4-oxadiazoles from amidoximes and nitriles
AU - Bolotin, D.S.
AU - Il'in, M.V.
AU - Novikov, A.S.
AU - Bokach, N.A.
AU - Suslonov, V.V.
AU - Kukushkin, V.Yu.
N1 - cited By 1
PY - 2017
Y1 - 2017
N2 - © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.Aliphatic and aromatic amidoximes RC(NH2)=NOH (R = Et, tBu, Ph, o-ClC6H4) react with Zn(OAc)2·2H2O in Me2CO giving [Zn(OAc)2{RC(NH2)=NOH}2] complexes bearing N-bound amidoximes, which are involved in a moderate strength (7.3-11.9 kcal mol-1 by the DFT calculations) intramolecular resonance-assisted hydrogen bonding between the oxime HO group and the oxo group of the acetate ligand. The complexes [Zn(OAc)2{RC(NH2)=NOH}2] react with excess Zn(OTf)2 in acetone accomplishing trinuclear species [Zn3(μ2-OAc)2{μ2-RC(NH2)=N(H)O}4(H2O)6](OTf)4 featuring both O-ligated amidoximes—stabilized in the aminonitrone tautomeric form—and bridging acetate ligands. The aminonitrone trinuclear species were also prepared directly via the reaction of the amidoximes with Zn(OTf)2 in EtOAc; ethyl acetate in this reaction plays the role of the acetate donor and OAc- is generated in situ via ZnII-mediated hydrolysis of EtOAc. Although [Zn(OAc)2{RC(NH2
AB - © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.Aliphatic and aromatic amidoximes RC(NH2)=NOH (R = Et, tBu, Ph, o-ClC6H4) react with Zn(OAc)2·2H2O in Me2CO giving [Zn(OAc)2{RC(NH2)=NOH}2] complexes bearing N-bound amidoximes, which are involved in a moderate strength (7.3-11.9 kcal mol-1 by the DFT calculations) intramolecular resonance-assisted hydrogen bonding between the oxime HO group and the oxo group of the acetate ligand. The complexes [Zn(OAc)2{RC(NH2)=NOH}2] react with excess Zn(OTf)2 in acetone accomplishing trinuclear species [Zn3(μ2-OAc)2{μ2-RC(NH2)=N(H)O}4(H2O)6](OTf)4 featuring both O-ligated amidoximes—stabilized in the aminonitrone tautomeric form—and bridging acetate ligands. The aminonitrone trinuclear species were also prepared directly via the reaction of the amidoximes with Zn(OTf)2 in EtOAc; ethyl acetate in this reaction plays the role of the acetate donor and OAc- is generated in situ via ZnII-mediated hydrolysis of EtOAc. Although [Zn(OAc)2{RC(NH2
U2 - 10.1039/c6nj03508f
DO - 10.1039/c6nj03508f
M3 - Article
VL - 41
SP - 1940
EP - 1952
JO - New Journal of Chemistry
JF - New Journal of Chemistry
SN - 1144-0546
IS - 5
ER -
ID: 7924524