Tag: M.W=100-200

Computed Properties of C6H5N5. 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 microporous metal-organic frameworks of the cadmium(II)-4-pyridyltetrazolate family: the structural influences of chloride incorporation. Author is Ouellette, Wayne; Zubieta, Jon.

While the metal-organic framework [Cd4(OH)2(4-pt)6(DMF)4]·12DMF (1·12DMF) (4-pt = 4-pyridyltetrazolate) is constructed from binuclear metal subunits, linked into porous {Cd2(OH)(DMF)2(4-pt)3}6 cages, introduction of increasing concentrations of chloride yields the 3-dimensional framework materials, [Cd4Cl3(4-pt)4(OH)(DMF)3]·8DMF·14MeOH (2·8DMF·14MeOH) and [Cd5Cl6(4-pt)(DMF)2(H2O)2]·10DMF (3·10DMF), constructed from tetranuclear and chain building blocks, resp.

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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

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: 20198-19-0, is researched, SMILESS is O=C1NC(N)=NC2=C1C=CC=C2, Molecular C8H7N3OJournal, Journal fuer Praktische Chemie (Leipzig) called The nitrile-carboxamide rearrangement and the formation of heterocycles from 2-cyanocyclohexenylurea, Author is Bischoff, Christian; Schroeder, Edith, the main research direction is nitrile carboxamide rearrangement; cyanocyclohexenylurea cyclization transamination amine; cyclohexenylurea cyano reaction amine; urea cyanocyclohexenyl reaction amine.Formula: C8H7N3O.

2-H2NC6H4CONH2 reacted with BrCN to give 85% 2-NCC6H4NHCONH2 via a nitrile-carboxamide rearrangement. Cyclohexenylurea I (R = R1 = H) reacted with amines to give 35-100% cyclization products II (R2 = 4-ClC6H4, 2,4,5-Cl3C6H2, Ph, PhCH2, 1-naphthyl, 4-O2NC6H4, H), with amines to give 29-86% transamination products I [NRR1 = NHCHMe2, NH(CH2)5CO2H, morpholino, piperidino], and with α-amino acids to give 32-49% cyclization products III (R3 = H, Pr). 2-Oxocyclohexanecarboxamide reacted with 2-aminobenzimidazole to give 100% benzimidazoquinazolinone IV.

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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

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Yun, L. M.; Babadzhanova, S. B.; Kadyrov, Ch. Sh.; Shakhidoyatov, Kh. M. researched the compound: 2-Aminoquinazolin-4(3H)-one( cas:20198-19-0 ).Application In Synthesis of 2-Aminoquinazolin-4(3H)-one.They published the article 《Amidomethylation of quinazoline derivatives by N-methylolphthalimide and -pyrolidinone》 about this compound( cas:20198-19-0 ) in Doklady Akademii Nauk UzSSR. Keywords: quinazolinone amidomethylation; alkylation quinazolinone. We’ll tell you more about this compound (cas:20198-19-0).

Alkylation of 2-amino-4-quinazolinone (I) or its 3-Me derivative with N-(hydroxymethyl)pyrrolidone or -phthalimide took place as expected to give the N-amidomethyl derivatives II and III (R = H, Me). III (R = H) on reaction with N2H4 gave I, HCHO, and NH3. With 4-quinazolinone the alkylation failed; only products of further reaction were isolated.

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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

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 One- and two-dimensional coordination polymers of substituted tetrazoles with cadmium(II). Author is Darling, Kari; Ouellette, Wayne; Pellizzeri, Steven; Smith, Tiffany; Vargas, Jose; Tomaszfski, Steven; O’Connor, Charles J.; Zubieta, Jon.

The reactions of Cd(NO3)2·4H2O with derivatized tetrazolate ligands yielded coordination polymers of the Cd(II)/iminetetrazolate/anion/solvent family. [Cd(4-Hpyrtet)2(OH)2] (1) (4-Hpyrtet = 4-pyridinetetrazole) is two-dimensional with the ligand in the protonated form with the tetrazole N3 site as the protonation location. The Co(II) and Cu(II) analogous [M(4-pyrtet)2(H2O)2] (M = Co (2), Cu (3)) are structurally similar to 1, but with the aqua ligands projecting to the intralamellar voids rather than into the interlamellar domains, as observed for the hydroxy groups of 1. The 2-pyridyltetrazolate derivative [CdCl(2-pyrtet)(DMF)] (4) is 1-dimensional with chloride and DMF ligands projecting from a {Cd(2-pyrtet)}nn+ ribbon. Compound 5, [Cd4Cl6(prytet)2(DMF)4], (prytet = pyrazinetetrazolate) is two-dimensional and exhibits {Cd4Cl6} secondary building units linked through tetrazolate groups and pyrazine units into the network structure. The azide derivative, [Cd3(N3)4(4-pyrtet)2(H2O)2] (6), is a pillared layer three-dimensional framework with {Cd3(N3)4(tetrazolate)2(H2O)2}n layers through the 4-pyrtet ligands.

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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

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: 2-Aminoquinazolin-4(3H)-one, is researched, Molecular C8H7N3O, CAS is 20198-19-0, about Heat stabilizers for poly(vinyl chloride) based on 4-quinazolinone derivatives.Recommanded Product: 2-Aminoquinazolin-4(3H)-one.

The thermooxidative stability of PVC was increased 2-16 folds by addition of 4-quinazolinone (I) derivatives due to the bonding of HCl and substituting the quinazolinone group for the labile Cl group. The stabilizing activity of I derivatives under isothermal and nonisothermal conditions depended on the nature of groups substituting the H atom in I. Mixtures of 2-amino-4-quinazolinone Co and Na salts with Ca stearate and Pb silicate stabilizers had a synergistic effect on the thermooxidative stability of PVC. The Co acetate complex of 2-amino-4-quinazolinone increased the thermal stability of PVC linoleum 2.5-3 folds compared to conventional stabilizer (Ca stearate) without adversely affecting the physicomech. properties of the linoleum.

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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

COA of Formula: C6H5N5. 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 Presynthesized and In-Situ Generated Tetrazolate Ligand in the Design of Chiral Cadmium Coordination Polymer. Author is Chang, Che-Chi; Huang, Yun-Chieh; Huang, Sheng-Ming; Wu, Jing-Yun; Liu, Yen-Hsiang; Lu, Kuang-Lieh.

In contrast to the in-situ generated 5-(4-pyridyl)tetrazolate (4-ptz) ligand, the use of presynthesized 4-ptz gave a chiral cadmium coordination polymer [Cd2Cl3(4-ptz)]n (1) with a rare μ5-bridging mode of the tetrazolate ligand. Reaction of the ligand generated in-situ from 4-cyanopyridine and NaN3 yielded an achiral complex [Cd2Cl2(OH)(4-ptz)(H2O)]n (2). Crystal structures for both complexes 1 and 2 were determined This type of tuning in the design of chiral coordination polymers is reported for the first time.

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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 chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Aminoquinazolin-4(3H)-one, is researched, Molecular C8H7N3O, CAS is 20198-19-0, about Rapid and Efficient Cascade Synthesis of 2-Amino-4(3H)-quinazolinones over an In Situ-Generated Heterogeneous CuCO3-K2CO3 Nanocomposite, the main research direction is quinazolinone amino preparation green chem; halobenzoic acid guanidine cascade reaction heterogeneous nanocomposite; copper carbonate potassium carbonate heterogenous recyclable nanocomposite preparation.Electric Literature of C8H7N3O.

A green, recyclable, in situ-generated, heterogeneous CuCO3-K2CO3 nanocomposite-catalyzed cascade reaction between 2-halobenzoic acids and guanidines is described for the synthesis of 2-amino-4(3H)-quinazolinones. The reaction is rapid and proceeds efficiently in air without the addition of a ligand or additive. This protocol is equally applicable to amidines for the synthesis of 2-alkyl- and 2-phenyl-4(3H)-quinazolinones.

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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

SDS of cas: 14389-12-9. 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 novel approach for the synthesis of 5-substituted-1H-tetrazoles. Author is Akhlaghinia, Batool; Rezazadeh, Soodabeh.

A series of 5-substituted-1H-tetrazoles (RCN4H), e.g., I, have been synthesized by cycloaddition reaction of different aryl and alkyl nitriles with sodium azide in DMSO using CuSO4·5H2O as catalyst. A wide variety of aryl nitriles underwent [3 + 2] cycloaddition to afford tetrazoles under mild reaction conditions in good to excellent yields. The catalyst used is readily available and environmentally friendly. Short reaction times, good to excellent yields, safe process and simple workup make this method an attractive and useful contribution to present organic synthesis of 5-substituted-1H-tetrazoles.

There are many compounds similar to this compound(14389-12-9)SDS of cas: 14389-12-9. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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

COA of Formula: C6H5N5. 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 Synthesis and structures of 5-(pyridyl)tetrazole complexes of Mn(II). Author is Lin, Ping; Clegg, William; Harrington, Ross W.; Henderson, Richard A..

New MnII complexes containing 5-(2-pyridyl)tetrazole, 5-(3-cyano-4-pyridyl)tetrazole or 5-(4-pyridyl)tetrazole ligands are described. The complexes were prepared by reaction of the corresponding cyanopyridines with sodium azide in the presence of MnII salts. All the complexes were characterized by x-ray crystallog., which reveals that 5-(pyridyl)tetrazole ligands can coordinate to Mn through either type of nitrogen atom in the tetrazole residue or via the pyridyl group. In the solid state, extended 2-dimensional and 3-dimensional structures are produced through networks of hydrogen bonding (involving water mols. and the tetrazolate residue). Acidification of the complexes produces the corresponding free 5-(pyridyl)-1H-tetrazole.

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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

SDS of cas: 14389-12-9. 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 New Cu(II) and Cd(II) coordination polymers employing 5-[N-acetato(4-pyridyl)]tetrazolate as a bridging ligand. Author is Yang, Gao-Wen; Li, Qiao-Yun; Wang, Jun; Yuan, Rong-Xin; Xie, Ji-Min.

Two coordination polymers [Cu(a4-ptz)2·2H2O]n, (1) and [{Cd(a4-ptz)·(H2O)2Cl}·H2O]n (2) (a4-ptz = 5-[N-acetato(4-pyridyl)]tetrazolate) were synthesized and characterized by elemental anal., IR spectroscopy, thermal anal., and X-ray crystal structure anal. Complex 1 exhibits a 2D square grid polymeric structure with dimensions of 1.220 0 nm × 1.220 0 nm. Complex 2 possesses a 1D Z-type polymeric chain, which contains four-membered ring (Cd2Cl2). The thermal stability of complex 2 up to about 280°C (TGA measurement) and their insolubility in common solvents make it a good candidate for potential fluorescent 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