Category: 14389-12-9

Quality Control of 5-(4-Pyridyl)-1H-tetrazole. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about A cationic copper-iodine cluster-based metal-organic framework (MOF) with (4,8)-connected fluorite topology. Author is Wang, Fei; Yu, Rong-Min; Wu, Xiao-Yuan; Lu, Can-Zhong.

A new copper-iodine based metal-organic framework compound, [Cu3(L)I2H2O]n (1) (L = 5-(4-pyridyl)tetrazole), was synthesized by solvothermal method. X-ray anal. shows that compound 1 is a 3-dimensional metal-organic framework constructed by the L ligands linking new discrete Cu6I4 cationic clusters, which has a (4,8)-connected fluorite (flu) topol. network. Photoluminescent (PL) investigation reveals that compound 1 displays strong yellow-light emission.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9 ) is researched.Application of 14389-12-9.Yang, Gao Wen; Zhang, Yuan Ting; Wu, Qi; Cao, Meng Jie; Wu, Jiao; Yue, Qiu Yan; Li, Qiao Yun published the article 《Nitrogen-rich 5-(4-pyridyl)tetrazole-2-acetic acid and its alkaline earth metal coordination polymers for potential energetic materials》 about this compound( cas:14389-12-9 ) in Inorganica Chimica Acta. Keywords: magnesium calcium strontium barium pyridyltetrazoleacetate polymer preparation thermal explosion; crystal structure magnesium calcium strontium barium pyridyltetrazoleacetate polymer. Let’s learn more about this compound (cas:14389-12-9).

Tetrazole and its derivatives with rich nitrogen atoms may be potential candidates for energetic materials. Alk. earth metal coordination compounds based on such ligands are relatively less investigated. Hpytza was prepared from 4-cyanopyridine and sodium azide, Et bromoacetate, where Hpytza = 5-(4-pyridyl)tetrazole-2-acetic acid. Hpytza and four alk. earth metal coordination polymers [Mg(pytza)2]n (1), [Ca(pytza)2(H2O)2]n·3nH2O (2), [Sr(pytza)2(H2O)2]n (3) and [Ba(pytza)2(H2O)2]n·nH2O (4) were prepared under solvothermal conditions. The thermal behavior of these compounds were characterized by the differential scanning calorimetry (DSC) and thermogravimetric-differential thermogravimetric (TG-DTG) analyses. Furthermore, the critical temperature of thermal explosion and relevant thermal parameters ΔS, ΔH, ΔG of Hpytza and polymers 1-4 were calculated, as well, indicating that these compounds are potential energetic materials.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 14389-12-9, is researched, SMILESS is C1(C2=NN=NN2)=CC=NC=C1, Molecular C6H5N5Journal, CrystEngComm called New (3,4)-connected intrinsically chiral topology observed in a homochiral coordination polymer from achiral precursors, Author is Wang, Fei; Zhang, Jian; Chen, Shu-Mei; Xie, Yi-Ming; Wu, Xiao-Yuan; Chen, Shan-Ci; Yu, Rong-Min; Lu, Can-Zhong, the main research direction is copper pyridyltetrazole cyanide bridge coordination polymer solvothermal preparation; crystal structure luminescence copper pyridyltetrazole cyanide bridge coordination polymer; NLO homochirality copper pyridyltetrazole cyanide bridge coordination polymer.SDS of cas: 14389-12-9.

An unpredicted (3,4)-connected topol. with intrinsic chirality present in a homochiral coordination polymer [Cu2(L)CN]n (1; L = 5-(4-pyridyl)tetrazole) was first shown here, which reveals a new possibility for the construction of lowly-connected chiral framework materials with potential applications.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Category: chiral-nitrogen-ligands. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Crystal structure of tetraaqua-bis(4-(5-tetrazolato)pyridyl-N)zinc(II) dihydrate, Zn(H2O)4(C6H4N5)2·2H2O. Author is Guo, J.-X.; Fu, F.; Li, D.-S.; Li, J.; Tang, L.; Qi, G.-C..

Crystallog. data and at. coordinates are given. In the crystal structure of Zn(4-PTZ)2(H2O)4.2H2O, the zinc atom has an approx. octahedral environment, where two 4 PTZ anions act as monodentate ligands via their pyridine-N atoms in trans positions [d(Zn-N) = 2.135(3) Å]. The structure also contains six water mols., four act as monodentate ligands [d(Zn-O1) = 2.122(2) Å, d(Zn-02) = 2.131(3) Å] and the remaining two as lattice water mols. Within the equatorial plane, the sum of the bond angles [Z 01-Zn-02 = 89.6(1)° and Z 02-Zn-O1′ = 90.4(1)°] around Zn(II) atom is 360°. The apical N-Zn-N bond angle is 180°. The environment of the central atom is similar to that of [Mn[5-(4-pyridyl)tetrazolato]2(H2O)4] [B. Zhang, 2005], in which the central Mn also has an octahedral environment and lies on the crystallog. inversion center. The supramol. title complex possesses two types of hydrogen bonds. One type occurs between coordinating water and lattice water mols. with d(O…O) = 2.741 Å – 2.771 Å and LO-H O… = 165.1 ° – 173.5 °. The other type is between the noncoordinating N atoms of the tetrazolato ligands and six water O atoms with d(N…O) = 2.779 – 2.924 Å and N-H…O = 159.4 – 176.7°. Through these hydrogen bonds, the adjacent mononuclear units are linked into infinite rows parallel to the b,c plane.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Quality Control of 5-(4-Pyridyl)-1H-tetrazole. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Solid state coordination chemistry of metal-azolate compounds: Structural consequences of incorporation of phosphate components in the Co(II)/4-pyridyltetrazolate/phosphate system. Author is Darling, Kari; Zubieta, Jon.

The hydrothermal reactions of a cobalt(II) salt and 5-(4-pyridyl)tetrazole in the presence of phosphate provided two three-dimensional materials of the M(II)/azolate/anion family [Co3(4-pt)3(PO4)] (1) and [Co3(H2O)4(4-pt)2(HOPO3)2] (2) (M(II) = Co; azolate = 5-(4-pyridyl)tetrazole or 4-Hpt; and anion = PO43- (1) and HPO42- (2)). The structures were characterized by the incorporation of metal cluster secondary building units (SBU). The structure of 1 features a variant of the common {M3(μ3-O)} sbu with the central bridging ligand provided by a phosphate oxygen rather than the more common oxo- or hydroxy-ligand. These trinuclear units are bridged through the remaining phosphate oxygen donors into chains which are in turn linked through the pyridyltetrazolate ligands into the framework structure. In the case of compound 2, {Co3(H2O)4}6+ linear trinuclear secondary building units are linked to four adjacent clusters through {HOPO3}2- tetrahedra to generate cobalt(II)-hydrogen phosphate layers, which are linked through the 4-pt ligands into the overall framework.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-(4-Pyridyl)-1H-tetrazole(SMILESS: C1(C2=NN=NN2)=CC=NC=C1,cas:14389-12-9) is researched.Quality Control of 5-(4-Pyridyl)-1H-tetrazole. The article 《Syntheses of 5-Substituted 1H-Tetrazoles Catalyzed by Reusable CoY Zeolite》 in relation to this compound, is published in Journal of Organic Chemistry. Let’s take a look at the latest research on this compound (cas:14389-12-9).

A simple and efficient route for the synthesis of 5-substituted 1H-tetrazoles catalyzed by CoY zeolite is reported. The salient features of this atom-economical, cost-effective, and high-yield cobalt-catalyzed protocol are aerobic conditions, lower reaction time, and milder reaction conditions without additives. Other advantages include exptl. ease of manipulation, safer alternative to hazardous, corrosive, and polluting conventional Lewis acid catalysts, recovery, and reusability with consistent catalytic activity. The results are rationalized by proposing a suitable mechanism.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Monodisperse Pt NPs@rGO as highly efficient and reusable heterogeneous catalysts for the synthesis of 5-substituted 1H-tetrazole derivatives.Reference of 5-(4-Pyridyl)-1H-tetrazole.

Monodisperse platinum nanoparticles supported on reduced graphene oxide (Pt NPs@rGO) are stable, isolable, bottleable, long-lived, highly efficient and exceptionally reusable heterogeneous catalysts for the synthesis of 5-substituted 1H-tetrazoles e. g., I, from sodium azide and various aromatic nitriles with great catalytic performance. Pt NPs@rGO have been used for the first time for these types of synthesis reactions and these NPs were characterized by transmission electron microscopy (TEM), high resolution electron microscopy (HRTEM), X-ray diffraction (XRD), at. force microscopy (AFM) and XPS. All prepared tetrazole compounds were obtained with the highest yield by using the current heterogeneous catalyst and characterized by m.p., FT-IR, 1H-NMR, 13C-NMR and HRMS analyses.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Aureggi, Valentina; Sedelmeier, Gottfried published the article 《1,3-Dipolar cycloaddition: click chemistry for the synthesis of 5-substituted tetrazoles from organoaluminum azides and nitriles》. Keywords: substituted tetrazole preparation; organoaluminum azide preparation nitrile dipolar cycloaddition.They researched the compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9 ).Electric Literature of C6H5N5. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:14389-12-9) here.

Conventional methods to prepare tetrazoles employ dangerous, toxic reagents. A route to these heterocycles using inexpensive and nontoxic dialkyl aluminum azides was developed. The cycloaddition occurred under mild conditions and tolerates a variety of functional groups. The low cost and ecocompatibility made this process attractive for large-scale preparation

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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Qi, Gang; Zhang, Wenguo; Dai, Yong published an article about the compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9,SMILESS:C1(C2=NN=NN2)=CC=NC=C1 ).Category: chiral-nitrogen-ligands. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:14389-12-9) through the article.

We report an efficient method of synthesis of 5-substituted 1H-tetrazoles by [2+3] cycloaddition of nitriles and sodium azide with graphene as nonmetal catalyst. Under optimized conditions, moderate to good yields (60-70 %) are obtained. The catalyst can be easily separated by centrifugation.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Reference of 5-(4-Pyridyl)-1H-tetrazole. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Solid state coordination chemistry of copper with pyridyltetrazoles: Structural consequences of incorporation of coordinating anions. Author is Darling, Kari; Ouellette, Wayne; Zubieta, Jon.

The hydrothermal reactions of various Cu(II) salts with 3- and 4-pyridyltetrazole and pyrazinyltetrazole were exploited in the preparation of Cu(II) and Cu(I) azolate materials. The parent Cu/pyridyltetrazole compositions are observed in the two-dimensional [Cu(3-pyrtet)2] (1), the reduced three-dimensional [Cu(4-pyrtet)] (2) and reduced two-dimensional [Cu(4-pyrtet)]·0.5DMF (3·0.5DMF) (Hpyrtet = pyridyltetrazole). The consequences of introducing coordinating anions are revealed in the structures of the 1-dimensional [CuCl2(4-Hpyrtet)]·0.5H2O (4·0.5H2O) and the two-dimensional [Cu2I2(4-Hpyrtet)] (5) and [Cu(acac)(4-pyrtet)] (7) (acac = acetylacetonate; H2en = ethylenediammonium cation). The pyrazinyltetrazolate derivative [H2en]0.5[CuCl2(prztet)] (Hprztet = pyrazinyltetrazole) (6) is 1-dimensional, but structurally distinct from the chain observed for 4.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis