Month: April 2022

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: 1762-34-1, is researched, SMILESS is CC1=CN=C(C=C1)C1=NC=C(C)C=C1, Molecular C12H12N2Journal, Polymer Chemistry called Self-supported rhodium catalysts based on a microporous metal-organic framework for polymerization of phenylacetylene and its derivatives, Author is Zhang, Li; Cao, Qingbin; Gao, Fei; Dong, Yuping; Li, Xiaofang, the main research direction is metal organic framework supported rhodium catalyst phenylacetylene polymerization.Name: 5,5′-Dimethyl-2,2′-bipyridine.

A series of heterogeneous metal-organic framework (MOF)-supported rhodium (Rh) hybrid catalysts with varying amounts of Rh are first applied to the coordination polymerization of phenylacetylene and its derivatives with or without cocatalysts in different organic solvents under a nitrogen atm. or in water media under an air atm. In comparison with the known homogeneous and heterogeneous Rh catalysts, these MOF-supported Rh catalysts exhibit not only a channel confinement effect on the polymer mol. weight distribution but also a more remarkable cooperation effect, polar solvent acceleration effect, “”on water”” effect, and cocatalyst acceleration effect on the catalytic activity. As a result, these heterogeneous Rh catalysts have the advantages of an extremely high activity of up to 1.5 x 107 g molRh-1 h-1, cis-selectivity of up to 99%, and reusability of up to 10 times, affording cis-transoidal PPAs and their functional derivatives having single-handed helical conformation or aggregation-induced emission properties with moderate mol. weights and narrow mol. weight distributions. As far as we are aware, such extremely efficient Rh catalysts as well as multiple reusable heterogeneous Rh catalysts have never been reported.

From this literature《Self-supported rhodium catalysts based on a microporous metal-organic framework for polymerization of phenylacetylene and its derivatives》,we know some information about this compound(1762-34-1)Name: 5,5′-Dimethyl-2,2′-bipyridine, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Safety of (R)-N-((R)-(5-(Diphenylphosphanyl)-9,9-dimethyl-9H-xanthen-4-yl)(4-methoxyphenyl)methyl)-2-methylpropane-2-sulfinamide. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: (R)-N-((R)-(5-(Diphenylphosphanyl)-9,9-dimethyl-9H-xanthen-4-yl)(4-methoxyphenyl)methyl)-2-methylpropane-2-sulfinamide, is researched, Molecular C39H40NO3PS, CAS is 2160535-56-6, about Gold-Catalyzed Asymmetric Intramolecular Cyclization of N-Allenamides for the Synthesis of Chiral Tetrahydrocarbolines. Author is Wang, Yidong; Zhang, Peichao; Di, Xiaoyu; Dai, Qiang; Zhang, Zhan-Ming; Zhang, Junliang.

Highly enantioselective gold-catalyzed intramol. cyclization of N-allenamides was implemented by utilizing a designed chiral sulfinamide phosphine ligand (PC-Phos) [e.g., allenamide I → tetrahydrocarboline II (99%, 96% ee) in presence of Me2S.AuCl, AgNTf2 and ligand III in CH2Cl2 at -50°]. This represents the first example of highly enantioselective intramol. cyclization of N-allenamides. The practicality of this reaction was validated in the total synthesis of (R)-desbromoarborescidine A and formal synthesis of (R)-desbromoarborescidine C and (R)-deplancheine. Moreover, the catalyst system PC-Phos/AuNTf2 proved to be specifically efficient to promote the desymmetrization of N-allenamides in excellent yields with satisfactory ee values.

From this literature《Gold-Catalyzed Asymmetric Intramolecular Cyclization of N-Allenamides for the Synthesis of Chiral Tetrahydrocarbolines》,we know some information about this compound(2160535-56-6)Safety of (R)-N-((R)-(5-(Diphenylphosphanyl)-9,9-dimethyl-9H-xanthen-4-yl)(4-methoxyphenyl)methyl)-2-methylpropane-2-sulfinamide, but this is not all information, there are many literatures related to this compound(2160535-56-6).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

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.Vicente, Ramon; Tubau, Annia; Speed, Saskia; Mautner, Franz A.; Bierbaumer, Florian; Fischer, Roland C.; Massoud, Salah S. researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Reference of 5,5′-Dimethyl-2,2′-bipyridine.They published the article 《Slow magnetic relaxation and luminescence properties in neodymium(III)-4,4,4-trifluoro-1-(2-naphthyl)butane-1,3-dionato complexes incorporating bipyridyl ligands》 about this compound( cas:1762-34-1 ) in New Journal of Chemistry. Keywords: neodymium trifluoronaphthalenylbutanedionate complex preparation magnetic relaxation luminescence; crystal structure neodymium trifluoronaphthalenylbutanedionate complex. We’ll tell you more about this compound (cas:1762-34-1).

Five new eight-coordinated Nd(III) mononuclear complexes with the formulas [Nd(ntfa)3(EtOH)2] (1), [Nd(ntfa)3(phen)] (2), [Nd(ntfa)3(bipy)] (3), [Nd(ntfa)3(5,5′-Me2bipy)] (4) and [Nd(ntfa)3(4,4′-Mt2bipy)] (5), where ntfa = 4,4,4-trifluoro-1-(naphthalen-2-yl)butane-1,3-dionate, phen = phenanthroline, bipy = 2,2′-dipyridine, 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-dipyridine, and 4,4′-Mt2bipy = 4,4′-dimethoxy-2,2′-dipyridine, were synthesized and structurally characterized. Magnetic measurements were carried out on complexes 2-5. Dynamic magnetic studies revealed single-mol. magnet (SMM) behavior for complexes 2, 4 and 5 with anisotropy energy barriers and preexponential factors of Ueff = 18 cm-1, τ0 = 2.2 x 10-7 s; Ueff = 31 cm-1, τ0 = 1.0 x 10-9 s and Ueff = 19 cm-1, τ0 = 8.7 x 10-8 s, resp. The ancillary chelating bipyridyl ligands in complexes 2-5 greatly enhance the solid state luminescence emission in the visible and NIR regions through efficient energy transfer from the ligands to the central Nd3+ ion. This study highlights the bifunctionality of the Nd(III) complexes.

From this literature《Slow magnetic relaxation and luminescence properties in neodymium(III)-4,4,4-trifluoro-1-(2-naphthyl)butane-1,3-dionato complexes incorporating bipyridyl ligands》,we know some information about this compound(1762-34-1)Reference of 5,5′-Dimethyl-2,2′-bipyridine, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Application of 1762-34-1. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Synthesis, structural characterization and in vitro cytotoxic evaluation of mixed Cu(II)/Co(II) levofloxacin-bipyridyl complexes. Author is Bashir, Masrat; Yousuf, Imtiyaz.

This work features synthesis, structural characterization and biol. evaluation of two Cu(II)/Co(II)-based complexes (1 and 2) synthesized from levofloxacin (lvXn) and bipyridyl ligands. The structural elucidation of complexes 1 and 2 was carried out by anal., spectral (UV-vis, FTIR, EPR) and single crystal x-ray crystallog. techniques. The crystallog. details of complex 1 revealed a triclinic crystal system with P-1 space group and lattice parameters a = 10.32(7) Å, b = 11.75(8) Å, c = 14.85(9) Å, and α = 87.40°, β = 77.55°, γ = 66.26°. The DFT studies were performed to study the electronic structure and localization of HOMO and LUMO electron densities on the complexes. authors have also performed comparative in vitro DNA/BSA binding studies of complexes 1 and 2 by multispectroscopic methods to evaluate the cytotoxic potential of synthesized complexes which revealed better binding potential of copper analog. Furthermore, the cytotoxic assessment of copper analog was examined on a panel of five human cancer cell lines employing SRB assay which revealed remarkably good and selective cytotoxic activity towards A498 (kidney), HeLa (cervical) and HepG2 (hepatoma) cancer cell lines.

From this literature《Synthesis, structural characterization and in vitro cytotoxic evaluation of mixed Cu(II)/Co(II) levofloxacin-bipyridyl complexes》,we know some information about this compound(1762-34-1)Application of 1762-34-1, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Bioorganic & Medicinal Chemistry Letters called Novel methyl substituted 1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methanones are P2X7 antagonists, Author is Rudolph, Dale A.; Alcazar, Jesus; Ameriks, Michael K.; Anton, Ana Belen; Ao, Hong; Bonaventure, Pascal; Carruthers, Nicholas I.; Chrovian, Christa C.; De Angelis, Meri; Lord, Brian; Rech, Jason C.; Wang, Qi; Bhattacharya, Anindya; Andres, Jose Ignacio; Letavic, Michael A., which mentions a compound: 1799971-34-8, SMILESS is O=C(N1[C@@H](C)C(NCC1)=O)OC(C)(C)C, Molecular C10H18N2O3, Electric Literature of C10H18N2O3.

The optimization efforts that led to a novel series of Me substituted 1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methanones that are potent rat and human P2X7 antagonists are described. These efforts resulted in the discovery of compounds with good drug-like properties that are capable of high P2X7 receptor occupancy in rat following oral administration, including compounds I (P2X7 IC50 = 7.7 nM) and II (P2X7 IC50 = 7.7 nM). These compounds are expected to be useful tools for characterizing the effects of P2X7 antagonism in models of depression and epilepsy, and several of the compounds prepared are candidates for effective P2X7 PET tracers.

From this literature《Novel methyl substituted 1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)methanones are P2X7 antagonists》,we know some information about this compound(1799971-34-8)Electric Literature of C10H18N2O3, but this is not all information, there are many literatures related to this compound(1799971-34-8).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Chidambaram, Ramasamy R.; Sadhasivam, Velu; Mariyappan, Mathappan; Siva, Ayyanar published the article 《Catalytic hydrogenation of aldehydes and ketones using cinchona-bipyridyl-based palladium catalyst》. Keywords: cinchona bipyridyl palladium catalyst preparation surface structure; aldehyde cinchona bipyridyl palladium catalyst hydrogenation; ketone cinchona bipyridyl palladium catalyst hydrogenation; alc preparation.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).SDS of cas: 1762-34-1. 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:1762-34-1) here.

Understanding the need for simple, robust and low effluents, in chem. processes, an elegant protocol was developed for the catalytic reduction of aldehydes and ketones to corresponding alcs. which were used in synthetic fragrance applications using cinchona alkaloid-derived palladium catalyst. This system holds good for very low catalyst loading surfaces with the formation of fewer impurities and negligible decomposition under moderate pressure. The conversions and yields ranges from moderate to good (60-80%).

From this literature《Catalytic hydrogenation of aldehydes and ketones using cinchona-bipyridyl-based palladium catalyst》,we know some information about this compound(1762-34-1)SDS of cas: 1762-34-1, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ) is researched.SDS of cas: 1762-34-1.Pan, Yao; Zhang, Nan; Liu, Chun-Hua; Fan, Shilu; Guo, Song; Zhang, Zhi-Ming; Zhu, Yuan-Yuan published the article 《Boosting Photocatalytic Activities for Organic Transformations through Merging Photocatalyst and Transition-Metal Catalyst in Flexible Polymers》 about this compound( cas:1762-34-1 ) in ACS Catalysis. Keywords: merging photocatalyst Transition Metal catalyst flexible polymer. Let’s learn more about this compound (cas:1762-34-1).

The merger of photocatalysis and transition-metal catalysis is of particular interest to develop useful and challenging synthetic methodologies. The catalytic activities of conventional dual-catalytic systems, however, are limited by the low synergistic efficiency between discrete catalytic centers due to their long average distance in solution Herein we carefully decorated Ir(III) photosensitizers and Ni(II) transition-metal catalyst into flexible polymers to afford two polymer-supported dual catalysts (P1-Ni and P2-Ni). These polyelectrolyte-type metallopolymers assembled into spherical polymer particles in some polar solvents. Their unique mol. and assembled structure contributed to shortening the distance between catalytic centers and increasing the local catalysts′ concentration within the catalyst, thereby greatly facilitating their electron, energy, and organic radical transfers during the catalytic cycles. The enhanced energy interaction and matched redox potential between two catalytic centers within the polymer were confirmed by steady- and transient-state luminescent spectra and cyclic voltammetry. These features enable them in catalyzing challenging organic transformations that involve efficiently incorporated photocatalytic and transition-metal catalytic cycles. We demonstrated that these two catalysts were highly effective in catalyzing C-S cross-coupling, C-O functionalized, C-N cross-coupling, and C-C cross-coupling reactions with broad substrate scopes and low catalyst loadings with turnover numbers of ~3100, ~1500, ~1400, and ~500, resp. This work provides a general methodol. to merge photosensitizer and transition-metal catalyst in a flexible polymer for significantly boosting the catalytic activity.

From this literature《Boosting Photocatalytic Activities for Organic Transformations through Merging Photocatalyst and Transition-Metal Catalyst in Flexible Polymers》,we know some information about this compound(1762-34-1)SDS of cas: 1762-34-1, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Qian, Zhe; Zhang, Ying; Jia, Ai-Quan; Shi, Hua-Tian; Zhang, Qian-Feng published an article about the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1,SMILESS:CC1=CN=C(C=C1)C1=NC=C(C)C=C1 ).COA of Formula: C12H12N2. 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:1762-34-1) through the article.

Treatment of [Mn(CH3COO)2·4H2O] with two equivalent of K[N(Ph2PO)2] in the presence of one equivalent of 2,2′-bipyridine (bpy) or 5,5′-dimethyl-2,2′-bipyridine(dmbpy) in ethanol gave the mono-nuclear manganese(II) complexes [Mn{η1-O-N(Ph2PO)2}{N(Ph2PO)2}(EtOH)(bpy)] (1) and [Mn{N(Ph2PO)2}2(dmbpy)] (2), resp. Interaction of [Mn(CH3COO)2·4H2O], K[N(Ph2PO)2] and salicylaldehyde or 5-chlorosalicylaldehyde or 3,5-dibromosalicylaldehyde in the presence of triethylamine in methanol gave the bi-nuclear manganese(II) complexes [Mn2{N(Ph2PO)2}2(μ,η2-O,O’-Sal)2(MeOH)2] (3) and [Mn2{N(Ph2PO)2}2(μ,η2-O,O’-5-Cl-Sal)2(MeOH)2] (4), and a tetra-nuclear manganese(II)/(III) complex [Mn4{N(Ph2PO)2}2(μ,η2-O,O’-3,5-Br2-Sal’)2(MeOH)4(μ-OMe)2(μ3-OMe)2] (5), resp. All complexes were characterized by IR and UV spectroscopy, their mol. structures were unambiguously established by single crystal x-ray diffraction. The electrochem. properties of complexes 1-5 were also studied.

From this literature《Syntheses, molecular structures, and spectroscopic properties of manganese(II)/(III) complexes with tetraphenylimidodiphosphinato and bi-pyridine or salicylaldehyde ligands》,we know some information about this compound(1762-34-1)COA of Formula: C12H12N2, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Mautner, Franz A.; Bierbaumer, Florian; Gyurkac, Marcell; Fischer, Roland C.; Torvisco, Ana; Massoud, Salah S.; Vicente, Ramon published an article about the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1,SMILESS:CC1=CN=C(C=C1)C1=NC=C(C)C=C1 ).Recommanded Product: 5,5′-Dimethyl-2,2′-bipyridine. 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:1762-34-1) through the article.

Seven La(III) complexes with the β-diketonate anion 4,4,4-trifluoro-1-(2-naphthyl)butane-1,3-dionato(1-) (ntfa) have been synthesized, namely: [La(ntfa)3(MeOH)3] (1a), [La(ntfa)3(H2O)2(EtOH)](EtOH) (1b), [La(ntfa)3(bipy)2] (2), [La(ntfa)3(Me2bipy)] (3), [La(ntfa)3(terpy)] (4), (NEt4)[La(ntfa)4] (5) and [La(ntfa)4Na(H2O)(EtOH)(Methyl-β-naphthylketone)] (6), where bipy = bipyridine, Me2bipy = 5,5′-dimethyl-bipyridine, terpy = terpyridine, NEt4+ = tetraethylammonium ion and structurally characterized. The tris-β-diketonate compounds 1a,b, 2-4 form neutral monomeric complexes with C. N. nine for 1a, 1b and 4, eight for 3, and ten in case of 2. The tetrakis-β-diketonato complexes 5 and 6 have coordination number eight.

From this literature《Synthesis and characterization of Lanthanum(III) complexes containing 4,4,4-trifluoro-1-(naphthalen-2yl)butane-1,3-dionate》,we know some information about this compound(1762-34-1)Recommanded Product: 5,5′-Dimethyl-2,2′-bipyridine, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Two novel Sm(III) complexes with different aromatic carboxylic acid ligands: Synthesis, crystal structures, luminescence and thermal properties, published in 2019-01-15, which mentions a compound: 1762-34-1, Name is 5,5′-Dimethyl-2,2′-bipyridine, Molecular C12H12N2, COA of Formula: C12H12N2.

Two novel Sm(III) complexes, [Sm(3,4-DMBA)3(3,4-DMHBA)(5,5′-DM-2,2′-bipy)]2 (1), [Sm(3-MOBA)3(5,5′-DM-2,2′-bipy)]2 (2) (3,4-dimethylbenzoic acid = 3,4-DMHBA, 3-methoxybenzoic acid = 3-MOHBA and 5,5′-dimethyl-2,2′-bipyridine = 5,5′-DM-2,2′-bipy), were successfully synthesized and assembled. The crystal structures were determined by single crystal x-ray diffraction. Two complexes were characterized by the elemental anal., IR, powder x-ray diffraction, thermal gravimetric technol. Because of the different ligands, the structures of the two complexes are very different, especially the structure of the complex 1. Each central Sm(III) ion of complex 1 was coordinated by three deprotonated 3,4-DMBA-,one unprotonated 3,4-DMHBA and one 5,5′-DM-2,2′-bipy, which has rarely been reported before. However each central Sm(III) ion of complex 2 was only coordinated via three deprotonated 3-MOBA- and one 5,5′-DM-2,2′-bipy. In addition, the thermal decomposition mechanism and the three-dimensional IR accumulation spectra of the evolved gas during the thermal decomposition for two complexes were studied by the simultaneous TG/DSC-FTIR technol. What’s more, the luminescence properties of two complexes are also discussed. Finally, the bacteriostatic activities of two complexes were evaluated against Staphlococcus aureus, Escherichia coli and Candida albicans.

From this literature《Two novel Sm(III) complexes with different aromatic carboxylic acid ligands: Synthesis, crystal structures, luminescence and thermal properties》,we know some information about this compound(1762-34-1)COA of Formula: C12H12N2, but this is not all information, there are many literatures related to this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem