10103-06-7Relevant articles and documents
Naphthalenediol-based bis(Salamo)-type homo- and heterotrinuclear cobalt(II) complexes: Syntheses, structures and magnetic properties
Zhang, Han,Dong, Wen-Kui,Zhang, Yang,Folaranmi Akogun, Sunday
, p. 279 - 293 (2017)
Homo- and heterotrinuclear Co(II) complexes with a new acyclic bis(Salamo)-type ligand H4L, which bears a C-shaped O6 site by the metallation of the N2O2 Salamo moieties, were synthesized. The homotrinuclear complex [Co3(L)(OAc)2(CH3OH)2]·2CHCl3 (1) was obtained by the reaction of H4L with 3 equivalents of Co(OAc)2·4H2O. The heterotrinuclear complexes [Co2(L)Ca(OAc)2] (2), [Co2(L)Sr(OAc)2] (3) and [Co2(L)Ba(OAc)2(H2O)]·2CH3CH2OH (4) were acquired by the reaction of H4L with 2 equivalents of Co(OAc)2·4H2O and 1 equivalent of M(OAc)2 (M?=?Ca(II), Sr(II) and Ba(II)). In the crystal structures, the three metal(II) atoms occupy both the N2O2 and O6 sites of the ligand (L)4? moiety. Owing to the different nature of the N2O2 and O6 sites of the ligand H4L, the introduction of two different metal(II) atoms to the site-selective moiety, when compared with complex 1, leads to the replacement of the central Co(II) atom by different alkaline earth metal(II) atoms, namely the Ca(II), Sr(II) and Ba(II) atoms for complexes 2, 3 and 4, respectively. Magnetic measurements were performed on complexes 1–4, where an intramolecular ferromagnetic interaction was found in complex 3 and intramolecular antiferromagnetic interactions were found in complexes 1, 2 and 4. The magnetic susceptibilities above 50?K obey the Curie–Weiss law and their constant values were determined for all the complexes.
Syntheses, structures and catecholase activities of homo- and hetero-trinuclear cobalt(II) complexes constructed from an acyclic naphthalenediol-based bis(Salamo)-type ligand
Li, Li-Hong,Dong, Wen-Kui,Zhang, Yang,Akogun, Sunday Folaranmi,Xu, Li
, (2017)
A series of homo- and hetero-trinuclear cobalt(II) complexes [Co3(L)(OAc)2(CH3CH2OH)(H2O)] (1), [Co2Ba(L)(OAc)2] (2) and [Co2Ca(L)(OAc)2]·CHCl3 (
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Haworth,Mavin
, p. 1485,1486 (1932)
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Synthetic studies on (1S)-1-(6,7-dimethoxy-2-naphthyl)-1-(1H-imidazol-4-yl) -2-methylpropan-1-ol as a selective C17,20-lyase inhibitor
Matsunaga, Nobuyuki,Kaku, Tomohiro,Ojida, Akio,Tasaka, Akihiro
, p. 2021 - 2028 (2004)
An asymmetric synthesis of the selective C17,20-lyase inhibitor 2 has been established in eight steps from 2,3-dihydroxynaphthalene 9. The key steps are the enantioselective oxidation of ketone 17 to the chiral α-hydroxy ketone 18 and the diastereoselective Grignard reaction of 18 to the (2R,3S)-diol 21. In addition, a simple procedure for the preparation of imidazolyl 1,4-dimagnesium bromide has been established; the Grignard reaction of 11 using this reagent in the presence of cinchonine provided 2 with 44% ee.
Synthesis and complexation properties of "zorbarene": A new naphthalene ring-based molecular receptor
Tran, Anh Huu,Miller, David O.,Georghiou, Paris E.
, p. 1115 - 1121 (2005)
(Chemical Equation Presented) The syntheses of the first 2,3-dialkoxy-substituted naphthalene ring-based macrocycles which have calixarene-like structures are reported. The complexation properties of these octahomotetraoxaisocalix-[4]naphthalenes were investigated. These new members of the calixnaphthalene family did not demonstrate any appreciable complexation with C60 or C70 under the conditions studied, but did so with the tetramethylammonium cation, showing relatively strong association constants suggesting among other considerations that stronger cation-π interactions versus π-π interactions are operative with these hosts. An X-ray crystal structure of the octa-O-ethoxy derivative revealed a structure having a "flattened partial-cone" conformation in which two acetonitrile guest molecules are trapped.
Sequential and cascade palladium catalysed cyclisation-anion capture- olefin metathesis
Evans, Paul,Grigg, Ronald,Ramzan, M. Imran,Sridharan, Visuvanathar,York, Mark
, p. 3021 - 3024 (1999)
The sequential or cascade combination of palladium catalysed cascade cyclisationanion capture involving two- and three-component processes with olefin metathesis, provides access to fused and spirocyclic ring systems in good yield and a bridged ring forming sequence is reported.
In silico design and synthesis of N-arylalkanyl 2-naphthamides as a new class of non-purine xanthine oxidase inhibitors
Ho, Sheau Ling,Lin, Ching-Ting,Lee, Shoei-Sheng
, p. 789 - 801 (2021/01/12)
A series of N-arylalkanyl 2-naphthamides (Xa~e), which were predicted from virtual molecular docking on a built xanthine oxidase template as potential inhibitors, were synthesized. Their inhibitory activity against xanthine oxidase was assayed. Among these prepared, compounds Xb (IC50 13.6?μM), Xc (IC50 13.1?μM), and Xd (IC50 12.5?μM) showed comparable inhibitory activity to allopurinol (IC50 22.1?μM). The in vitro assay result correlated well with molecular docking scores, ΔG?=??16.99, ?17.66, and ?17.13 Kcal/mol, respectively. On the potassium oxonate-induced hyperuricemic mice model, oral administration of Xc-Ac (40 mg/ Kg), the per-O-acetylated Xc, could reduce the blood uric acid level by 60% in comparison to the normal control group and is statistically significant (p .01) while compared with the hyperuricemic mice group.
ELECTROACTIVE COMPOUNDS
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Page/Page column 46; 47, (2020/12/01)
There is provided a compound having Formula (I). In Formula (I): Ar1 is a hydrocarbon aryl group, a heteroaryl group, or a substituted derivative thereof; and Ar2 has Formula (IA), (IB), (IC), (IAa), (IBb), or (ICc). The variables are described in detail herein.
