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5431-44-7

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5431-44-7 Usage

Uses

Different sources of media describe the Uses of 5431-44-7 differently. You can refer to the following data:
1. 2,6-Pyridinedicarboxaldehyde is an intermediate used to prepare functionalized resin Amberlite XAD-4,?boron-dipyrromethene (BODIPY)-based fluorescence probe with a N,N′-(pyridine-2, 6-diylbis(methylene))-dianiline substituent and novel N-heterocyclic chitosan aerogel derivatives.
2. 2,6-Pyridinedicarboxaldehyde has been used in preparation of:functionalized resin Amberlite XAD-4boron-dipyrromethene (BODIPY)-based fluorescence probe with a N,N′-(pyridine-2, 6-diylbis(methylene))-dianiline substituent novel N-heterocyclic chitosan aerogel derivatives

Check Digit Verification of cas no

The CAS Registry Mumber 5431-44-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,3 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5431-44:
(6*5)+(5*4)+(4*3)+(3*1)+(2*4)+(1*4)=77
77 % 10 = 7
So 5431-44-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H5NO2/c9-4-6-2-1-3-7(5-10)8-6/h1-5H

5431-44-7 Well-known Company Product Price

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  • Aldrich

  • (256005)  2,6-Pyridinedicarboxaldehyde  97%

  • 5431-44-7

  • 256005-250MG

  • CNY

  • Detail
  • Aldrich

  • (256005)  2,6-Pyridinedicarboxaldehyde  97%

  • 5431-44-7

  • 256005-1G

  • 4,103.19CNY

  • Detail

5431-44-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,6-Pyridinedicarboxaldehyde

1.2 Other means of identification

Product number -
Other names 2,6-dicarboxaldehydepyridine

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5431-44-7 SDS

5431-44-7Relevant articles and documents

Synthesis of side-chain functional polyesters via Baylis-Hillman polymerization

Ji, Sanhao,Bruchmann, Bernd,Klok, Harm-Anton

, p. 5218 - 5226 (2011)

Strategies that allow access to side-chain functional polyesters are valuable as they would enable to engineer the properties of these hydrolytically degradable materials. This contribution explores the feasibility of a novel approach toward side-chain functional polyesters that is based on the Baylis-Hillman reaction, which involves the base-catalyzed condensation of an aldehyde and an acrylate building block to produce an α-methylene-β- hydroxycarbonyl compound. Using 1,3-butanediol acrylate and 2,6- pyridinecarboxaldehyde as monomers and DABCO as catalyst, polymers with a degree of polymerization of up to 25 could be prepared. These polymers are attractive as they contain chemically orthogonal side-chain hydroxyl and vinyl groups that can be further modified. In the first experiments, it was demonstrated that the side-chain hydroxyl and vinyl groups can be quantitatively postmodified with phenyl isocyanate and methyl-3-mercaptopropionate, respectively. As the Baylis-Hillman polymerization does not require the use of side-chain protected monomers, this route may represent an interesting alternative strategy for the preparation of side-chain functional polyesters.

Synthesis and Coordinating Properties of a Ferrocenophane containing a Pyridine Unit

Hall, C. Dennis,Tucker, James H. R.,Chu, Sunny Y. F.,Parkins, Adrian W.,Nyburg, Stanley C.

, p. 1505 - 1507 (1993)

The cryptand 3, containing both a ferrocene unit and a 2,6-disubstituted pyridine unit, forms complexes with di- and tri-valent cations; the X-ray crystal structure of a 2:1 (host:guest) complex with Ca2+ shows that the metal cations are coordinated by a cis-configuration of the carbonyl groups on the short (pyridyl) side of the macrocyclic ring, which confirms the interpretation of the 1H and 13C NMR data of the complexes in solution.

Lanthanide(III) and yttrium(III) coordination compounds of diastereomeric (2+2) macrocyclic imines derived from 2,6-diformylpyridine and trans-1,2-diaminocyclopentane

Gregoliński, Janusz,?lepokura, Katarzyna

, p. 15 - 25 (2018)

The enantiopure mononuclear coordination compounds [Ln(L1)]Cl3·nH2O (Ln = Y(III), Nd(III), Sm(III), Eu(III), Tb(III), Yb(III)) of the chiral macrocyclic (2+2) imine L1 (L1RRRR and L1SSSS), derived from (1R,2R) and (1S,2S)-1,2-diaminocyclopentane (DACP) and 2,6-diformylpyridine (DFP), have been synthesized in the templated condensation of the precursors in the presence of the appropriate metal salts. From the racemic trans-DACP and DFP in the templated condensation, a series of racemic mononuclear coordination compounds [Ln(L1rac)]Cl3·nH2O (Ln = Y(III), Nd(III), Sm(III), Eu(III), Tb(III), Yb(III)) have been obtained. In the absence of metal salt, the condensation of the achiral precursors leads to a meso type Schiff base L2, which in the presence of lanthanide(III) salts produced the mononuclear coordination compounds [Ln(L2)]Cl3·nH2O (Ln = Y(III), Nd(III), Sm(III), Eu(III), Tb(III)). The mononuclear coordination compounds with the L1 and L2 ligands have been characterised by NMR spectroscopy, mass spectrometry, elemental analyses and/or circular dichroism (CD). 1H NMR signals of CDCl3/CD3OD solutions of the Y(III), Nd(III), Sm(III) and Eu(III) coordination compounds have been assigned on the basis of their COSY and HMQC spectra, and for the remaining lanthanide coordination compounds (Tb(III) and Yb(III)) the signals were tentatively assigned on the basis of linewidths analyses. The properties and stability of the lanthanide(III) and yttrium(II) coordination compounds of the racemic macrocycle L1rac have been compared with those of the isomeric meso type macrocycle L2 in organic solvents and water. Axial ligand exchange for several coordination compounds was investigated by 1H NMR titration experiments in organic solvents. The X-ray crystal structures of the representative mononuclear coordination compounds [Nd(L1RRRR)Cl(H2O)2]Cl2·0.5MeOH·H2O, [Nd(L1rac)Cl(H2O)2]Cl2·1.6MeOH·0.2H2O, [Y(L1rac)Cl(H2O)2]Cl2·3.5H2O, [Y(L1rac)Cl(H2O)2][Y(L1rac)(H2O)3]Cl5·6.8H2O and [Nd(L2)Cl2(H2O)]Cl with the diastereomeric ligands L1 and L2 have been determined.

Synthesis, characterization, X-ray structure and photoluminescence properties of two Ce(III) complexes derived from pentadentate ligands

K?se, Muhammet,Akgün, Eyup,Ceyhan, G?khan

, p. 33 - 40 (2015)

In this study, two new Ce(III) complexes [Ce(L1)(NO3)3]·H2O and [Ce(L2)(NO3)3]·H2O were synthesized and characterized by spectroscopic and analytical methods where L1 and L2 are pentadentate diimine ligands. Molecular structure of [Ce(L1)(NO3)3]·H2O was determined by single crystal X-ray diffraction study. The complex was found to crystallize as [Ce(L1)(NO3)3] H2O. In the complex, the ligand L1 coordinates to the Ce(III) ion with the N3O2 donor set and the Ce(III) ion sits within the cavity of acyclic ligand. The Ce(III) ion is 11-coordinated by three nitrogen atoms from the ligand and eight O atoms, six of which come from three nitrate ions, two from the ligand. In the structure of the complex, water molecules link molecules together to form a 3D hydrogen bond network. Thermal behavior of the Schiff base ligands and their Ce(III) complexes metal complexes were studied under nitrogen atmosphere in the temperature range of 20-800 °C. Thermal stability of the ligands increased upon complexation with Ce(III) ion. In the UV-Vis spectra of Ce(III) complexes, new absorption bands appeared at 340-450 nm and these new bands were attributed to metal-ligand (M-L) charge transitions. Photoluminescence properties of the ligands and their Ce(III) complexes were examined.

A novel rhodamine-based optical probe for mercury(II) ion in aqueous medium: A nanomolar detection, wide pH range and real water sample application

Patil, Sagar K.,Das, Dipanwita

, (2020)

In present work, we designed and synthesized new chemosensor RPy, containing the rhodamine and 2,6-pyridinedicarboxaldehyde functionality, for the selective detection of mercury (II) (Hg2+) ion in aqueous DMSO solvents. The RPy acts as “turn ON” probe for Hg2+ ion with high selectivity and sensitivity over the series of other competing metal ions based on colorimetric and fluorimetric techniques. Due to the incorporation of two rhodamine moieties enhance the chelation sites for mercury binding, which reflects in the lowering of the detection limit up to 26 nM. The Job plot method confirms the 1:2 stoichiometric interactions between the RPy and Hg2+ ion. The formation of the chelation complex between RPy and Hg2+ ion with spirolactam ring opening was thoroughly investigated by absorption, emission, 1H NMR, and mass analysis. The detection of Hg2+ ion by RPy is retained at broad pH range 4–9. Further, the probe RPy is successfully explored to measure the contamination of Hg2+ ion in the real water samples using spike and recovery method.

Metal organic complex with near-infrared absorption and emission properties and preparation method thereof

-

, (2021/02/24)

The invention discloses a metal organic complex with near-infrared absorption and emission properties and a preparation method thereof. The metal organic complex is prepared by the following steps of:carrying out condensation reaction on an aldehyde group-containing ligand precursor and thiophene or furan or pyrrole or benzene ring or selenophen to obtain a ligand, and carrying out coordination reaction on the ligand and Pd(DMSO)2Cl2 or Pt(DMSO)2Cl2 to obtain a complex monomer, and carrying out condensation dimerization reaction on the complex monomer to obtain the metal organic complex. Themetal organic complex with near-infrared absorption and emission properties has near-infrared absorption and emission properties, and can be used as a wave-absorbing material in the fields of near-infrared imaging, invisible ink and anti-counterfeiting printing, near-infrared bar code invisible identification, plasma display panels, dye-sensitized solar cells, near-infrared light emitting diodes and the like.

Manganese Complex of a Rigidified 15-Membered Macrocycle: A Comprehensive Study

Freire, David M.,Green, Kayla N.,Kálmán, Ferenc Krisztián,Molnár, Enik?,Pota, Kristof,Tircsó, Gyula

supporting information, (2020/08/12)

Owing to the increasing importance of manganese(II) complexes in the field of magnetic resonance imaging (MRI), large efforts have been devoted to find an appropriate ligand for Mn(II) ion encapsulation by providing balance between the seemingly contradictory requirements (i.e., thermodynamic stability and kinetic inertness vs low ligand denticity enabling water molecule(s) to be coordinated in its metal center). Among these ligands, a large number of pyridine or pyridol based open-chain and macrocyclic chelators have been investigated so far. As a next step in the development of these chelators, 15-pyN3O2Ph and its transition metal complexes were synthesized and characterized using established methods. The 15-pyN3O2Ph ligand incorporates both pyridine and ortho-phenylene units to decrease ligand flexibility. The thermodynamic properties, protonation and stability constants, were determined using pH-potentiometry; the solid-state structures of two protonation states of the free ligand and its manganese complex were obtained by single crystal X-ray diffractometry. The results show a seven-coordinate metal center with two water molecules in the first coordination sphere. The longitudinal relaxivity of [Mn(15-pyN3O2Ph)]2+ was found to be 5.16 mM-1 s-1 at 0.49 T (298 K). Furthermore, the r2p value of 11.72 mM-1 s-1 (0.49 T), which is doubled at 1.41 T field, suggests that design of this Mn(II) complex does achieve some characteristics required for contrast imaging. In addition, 17O NMR measurements were performed in order to access the microscopic parameters governing this key feature (e.g., water exchange rate). Finally, manganese complexes of ligands with analogous polyaza macrocyclic scaffold have been investigated as low molecular weight Mn(CAT) mimics. Here, we report the H2O2 disproportionation study of [Mn(15-pyN3O2Ph)]2+ to demonstrate the versatility of this ligand scaffold as well.

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