Day: April 11, 2022

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.

I hope my short article helps more people learn about this compound(5-(4-Pyridyl)-1H-tetrazole)Category: chiral-nitrogen-ligands. Apart from the compound(14389-12-9), you can read my other articles to know other related compounds.

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

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.

I hope my short article helps more people learn about this compound(2-Aminoquinazolin-4(3H)-one)Application In Synthesis of 2-Aminoquinazolin-4(3H)-one. Apart from the compound(20198-19-0), you can read my other articles to know other related compounds.

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: 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.

I hope my short article helps more people learn about this compound(2-Aminoquinazolin-4(3H)-one)Formula: C8H7N3O. Apart from the compound(20198-19-0), you can read my other articles to know other related compounds.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called A Crystalline Iron Terminal Methylidene, published in 2021-10-20, which mentions a compound: 1663-45-2, mainly applied to crystalline iron terminal methylidene, Quality Control of 1,2-Bis(diphenylphosphino)ethane.

Iron methylidene species are alleged intermediates in the Fischer-Tropsch process and in olefin cyclopropanation, yet iron methylidene complexes with unambiguously established mol. and electronic structures remain elusive. In this study, we characterize an iron terminal methylidene complex by single-crystal X-ray diffractometry (scXRD), CHN combustion elemental anal., 1H/13C/31P/1H-13C NMR, and zero-field 57Fe Mössbauer spectroscopy and study its reactivity. A series of closely related complexes in different oxidation states were synthesized, isolated and characterized in order to validate the electronic structure of the title methylidene complex. The computational anal. substantiates the proposed Fischer-type electronic description while emphasizing high Fe=CH2 bond covalency, considerable double bond order, and thus, substantial alkylidene character.

I hope my short article helps more people learn about this compound(1,2-Bis(diphenylphosphino)ethane)Quality Control of 1,2-Bis(diphenylphosphino)ethane. Apart from the compound(1663-45-2), you can read my other articles to know other related compounds.

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

Computed Properties of C30H21P. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Tri(naphthalen-1-yl)phosphine, is researched, Molecular C30H21P, CAS is 3411-48-1, about Palladium-Catalyzed Silacyclization of (Hetero)Arenes with a Tetrasilane Reagent through Twofold C-H Activation. Author is Wang, Dingyi; Li, Mingjie; Chen, Xiangyang; Wang, Minyan; Liang, Yong; Zhao, Yue; Houk, Kendall N.; Shi, Zhuangzhi.

The use of an operationally convenient and stable silicon reagent (octamethyl-1,4-dioxacyclohexasilane, ODCS) for the selective silacyclization of (hetero)arenes via twofold C-H activation is reported, giving oxadisilole-annelated indole, carbazoles and arene phosphine derivatives This method is compatible with N-containing heteroarenes such as indoles and carbazoles of varying complexity. The ODCS reagent can also be utilized for silacyclization of other types of substrates, including tertiary phosphines and aryl halides. A series of mechanistic experiments and d. functional theory (DFT) calculations were used to investigate the preferred pathway for this twofold C-H activation process.

I hope my short article helps more people learn about this compound(Tri(naphthalen-1-yl)phosphine)Computed Properties of C30H21P. Apart from the compound(3411-48-1), you can read my other articles to know other related compounds.

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

Formula: C5H10Br2. 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: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about N-spirocyclic ammonium-functionalized graphene oxide-based anion exchange membrane for fuel cells. Author is Long, Chuan; Lu, Chuanrui; Li, Yunxi; Wang, Zhihua; Zhu, Hong.

Graphene oxide (GO) is a potential material in the electrode and membrane of polymer electrolyte membrane fuel cells due to its unique structure and various oxygen-containing functional groups. A class of three-layered GO/poly(phenylene oxide) for AEMs was prepared in this work. GO was functionalized with highly stable 6-azonia-spiro [5.5]undecane groups and used as a fast hydroxide conductor, named ASU-GO. Functionalized by N-spirocyclic cations, poly (phenylene oxide) (PIPPO) was then combined with ASU-GO and GO to fabricate the ASU-GO/PIPPO and GO/PIPPO. Notably, the maximum hydroxide conductivity of the ASU-GO/PIPPO was 73.7 mS cm-1 at 80 °C, which was 3 times higher than that of the GO/PIPPO. The enhancement in hydroxide conductivity was due to the changes in the hydroxide transport mechanism and the poor stacked structure of the ASU-GO layer. Only 10.8% drops in hydroxide conductivity of ASU-GP/PIPPO after the alk. test (1 M KOH at 80 °C for 700 h). Furthermore, the ASU-GO/PIPPO-50 membrane showed a maximum peak power d. of 102 mW cm-2, demonstrating the prepared membrane was promising in the AEM applications.

I hope my short article helps more people learn about this compound(1,5-Dibromopentane)Formula: C5H10Br2. Apart from the compound(111-24-0), you can read my other articles to know other related compounds.

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

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.

I hope my short article helps more people learn about this compound(5-(4-Pyridyl)-1H-tetrazole)Computed Properties of C6H5N5. Apart from the compound(14389-12-9), you can read my other articles to know other related compounds.

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: 2-Aminoquinazolin-4(3H)-one, is researched, Molecular C8H7N3O, CAS is 20198-19-0, about Quinazolines. VIII. Reaction of 2-aminoquinazol-4-one with unsaturated acids.Category: chiral-nitrogen-ligands.

Pyrimidoquinazolinediones I (R = H, Me, Ph, R1 = R2 = H; R = R1 = H, R2 = Me; R = R1 = Me, R2 = H) were obtained in 61-90% yields by cyclocondensation of RR1C:CR2CO2H with 2-amino-4(3H)-quinazolinone 2 h at 160-5°.

I hope my short article helps more people learn about this compound(2-Aminoquinazolin-4(3H)-one)Category: chiral-nitrogen-ligands. Apart from the compound(20198-19-0), you can read my other articles to know other related compounds.

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: 1,2-Bis(diphenylphosphino)ethane( cas:1663-45-2 ) is researched.Category: chiral-nitrogen-ligands.Domingo-Legarda, Pablo; Casado-Sanchez, Antonio; Marzo, Leyre; Aleman, Jose; Cabrera, Silvia published the article 《Photocatalytic Water-Soluble Cationic Platinum(II) Complexes Bearing Quinolinate and Phosphine Ligands》 about this compound( cas:1663-45-2 ) in Inorganic Chemistry. Keywords: platinum quinolinate phosphine complex preparation photocatalyst electrochem luminescence; crystal structure platinum quinolinate phosphine complex. Let’s learn more about this compound (cas:1663-45-2).

Cationic Pt(II) complexes ([Pt(QO/S)(PΛP)]X), having 8-oxy or 8-thioquinolinate (QO/S) and seven different mono- or bidentate phosphines as ligands, have been synthesized and characterized. The photophys., stability, and photocatalytic properties of those complexes were studied and compared to that of the parent [Pt(QO/S)(dmso)(Cl)]. The coordination of phosphines induced a red-shift in the absorption energy of the MLCT band, whereas the emission wavelength of the complexes only depended on the nature of the quinolinate ligand. Moreover, the photocatalytic activity of the Pt(II) complexes was evaluated in the oxidation of sulfides using atm. oxygen as an oxidant. All the complexes were active photocatalysts for that transformation, with [Pt(QO)(BINAP)]Cl and [Pt(QO)(SEGPHOS)]Cl (BINAP: 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl, SEGPHOS: (4,4′-bibenzodioxole)-5,5′-diyldiphosphine) exhibiting high catalytic performance and stability. In addition, the enhanced water solubility of the complexes allowed performance of the photooxidation reaction under environmentally friendly conditions. In particular, the catalyst [Pt(QS)(dppe)]Cl, bearing 8-thioquinolinate and diphenylphosphinoethate (dppe) as ligands, successfully catalyzed the oxidation of a variety of sulfides using water as a solvent.

I hope my short article helps more people learn about this compound(1,2-Bis(diphenylphosphino)ethane)Category: chiral-nitrogen-ligands. Apart from the compound(1663-45-2), you can read my other articles to know other related compounds.

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: 3411-48-1, is researched, SMILESS is C1=CC2=C(C=C1)C(=CC=C2)P(C1=CC=CC2=C1C=CC=C2)C1=CC=CC2=C1C=CC=C2, Molecular C30H21PJournal, Tetrahedron Letters called Visible light-induced 4-phenylthioxanthone-catalyzed aerobic oxidation of triarylphosphines, Author is Ding, Aishun; Li, Shijie; Chen, Yang; Jin, Ruiwen; Ye, Cong; Hu, Jianhua; Guo, Hao, the main research direction is arylphosphine light induced phenylthioxanthone catalyzed aerobic oxidation; phosphine oxide aryl preparation.Recommanded Product: 3411-48-1.

The authors report herein a visible light-induced oxidation of triarylphosphines under aerobic condition with excellent functional group tolerance. In this transformation, the photo catalyst 4-phenylthioxanthone acted as a photosensitizer for the in situ generation of singlet O. This new approach provided a cheaper and greener method for the preparation of phosphine oxide, showing great advantages in environmental protocols.

I hope my short article helps more people learn about this compound(Tri(naphthalen-1-yl)phosphine)Recommanded Product: 3411-48-1. Apart from the compound(3411-48-1), you can read my other articles to know other related compounds.

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