Day: March 30, 2022

Name: (S)-5-(Hydroxymethyl)dihydrofuran-2(3H)-one. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (S)-5-(Hydroxymethyl)dihydrofuran-2(3H)-one, is researched, Molecular C5H8O3, CAS is 32780-06-6, about Total synthesis of (R,Z)-(-)-5-tetradecen-4-olide, the pheromone of the Japanese beetle and its biological activity test. Author is Kang, Suk Ku; Shin, Dong Soo; Lee, Jeong Oon; Goh, Hyun Gwan.

Wittig-Emmons olefination of glyceraldehyde derivative I with (MeO)2P(O)CH2CO2Me, followed by hydrogenation and lactonization, gave (S)-hydroxylactone II. Inversion of configuration, oxidation, and Wittig olefination with RCH:PPh3 [R = Me(CH2)7] gave the title compound III as a 96:4 mixture of (Z)- and (E)-isomers. III was tested as an attractant for the male Japanese beetle.

There is still a lot of research devoted to this compound(SMILES：O=C1O[C@H](CO)CC1)Name: (S)-5-(Hydroxymethyl)dihydrofuran-2(3H)-one, and with the development of science, more effects of this compound(32780-06-6) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 89972-77-0, is researched, Molecular C22H17N3, about Anion Extraction Properties of a New “”Proton-Switchable”” Terpyridin-Conjugated Calix[4]arene, the main research direction is terpyridinylbenzyloxy calixarene preparation acid dependent extraction dichromate; lack interference nitrate chloride sulfate extraction dichromate terpyridinylbenzyloxy calixarene.Recommanded Product: 4-(p-Tolyl)-2,2:6,2-terpyridine.

A bis(terpyridinylbenzyloxy)calix[4]arene was prepared; the terpyridinylbenzyl calixarene selectively extracted dichromate ion from aqueous solution at pH 1.5 into CH2Cl2 while extracting very little dichromate ion from aqueous solution at pH 4.5 into CH2Cl2. The bis(terpyridinylbenzyloxy)calix[4]arene formed a 1:1 complex with dichromate; extraction of dichromate was minimally affected by the presence of chloride, sulfate, and nitrate ions.

There is still a lot of research devoted to this compound(SMILES：CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1)Recommanded Product: 4-(p-Tolyl)-2,2:6,2-terpyridine, and with the development of science, more effects of this compound(89972-77-0) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine(SMILESS: CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1,cas:89972-77-0) is researched.Application of 3230-65-7. The article 《Homochiral ZnII-Camphorate Frameworks With 4′-p-tolyl-2,2′:6′,2”-Terpyridine and 1,10-Phenanthroline as Accessorial Ligands: Syntheses, Crystal Structures, and Properties》 in relation to this compound, is published in Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. Let’s take a look at the latest research on this compound (cas:89972-77-0).

The homochiral coordination polymers of zinc(II) with D-camphoric acid (D-H2Cam) as bridges and 4′-p-tolyl-2,2′:6′,2”-terpyridine (ttpy) and 1,10-phenanthroline (phen) as accessorial terminal ligands, namely [Zn2(D-Cam)2(ttpy)2]n (I1) and [Zn2(D-Cam)2(phen)2]n (I2), have been synthesized and characterized by elemental anal., IR, PXRD, and x-ray diffraction anal. Both complexes have 1D homochiral coordination chains bridged by D-Cam. The coordination numbers of ZnII ions, the coordination modes of D-Cam, and the crystal structures in I1 and I2 vary with the accessorial ligands ttpy and phen used. Addnl., compounds I1 and I2 have stronger fluorescence and higher thermostability, indicating their potential utility in photoluminescent materials.

There is still a lot of research devoted to this compound(SMILES：CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1)Synthetic Route of C22H17N3, and with the development of science, more effects of this compound(89972-77-0) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Recommanded Product: 32780-06-6. 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: (S)-5-(Hydroxymethyl)dihydrofuran-2(3H)-one, is researched, Molecular C5H8O3, CAS is 32780-06-6, about Synthesis of S-(+)-4-(hydroxymethyl)-4-butanolide. Author is Pirillo, D.; Leggeri, P.; Traverso, G..

The title compound (I) was prepared from L-(+)-glutamic acid (II). II was converted to the hydroxy acid analog via diazotization; the hydroxy acid underwent lactonization to yield III (R = CO2H); the latter, Cl2CHOMe, and ZnCl2 gave III (R = COCl); and the product was reduced by NaBH4 to give I.

There is still a lot of research devoted to this compound(SMILES：O=C1O[C@H](CO)CC1)Recommanded Product: 32780-06-6, and with the development of science, more effects of this compound(32780-06-6) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Name: 4-(p-Tolyl)-2,2:6,2-terpyridine. 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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Vapochromism and Its Structural Basis in a Luminescent Pt(II) Terpyridine-Nicotinamide Complex. Author is Wadas, Thaddeus J.; Wang, Quan-Ming; Kim, Yong-Joo; Flaschenreim, Christine; Blanton, Thomas N.; Eisenberg, Richard.

A novel Pt(II) terpyridine complex that has a nicotinamide moiety linked to the terpyridyl ligand has been synthesized in good yield and studied structurally and spectroscopically. The complex, [Pt(Nttpy)Cl](PF6)2 where Nttpy = 4′-(p-nicotinamide-N-methylphenyl)-2,2′:6′,2”-terpyridine, is observed to be brightly luminescent in the solid state at room temperature and at 77 K. The complex exhibits reversible vapochromic behavior and crystallog. change in the presence of several volatile organic solvents. Upon exposure to methanol vapors, the complex changes color from red to orange, and a shift to higher energy is observed in the emission maximum with an increase in excited-state lifetime and emission intensity. The crystal and mol. structures of the orange and red forms, determined by single-crystal X-ray diffraction on the same single crystal, were found to be equivalent in the mol. sense and only modestly different in terms of packing. In both forms, the cationic Pt(II) complexes possess distorted square planar geometries. Anal. of the orange form’s crystal packing reveals the presence of solvent mols. in lattice voids, Pt···Pt separations averaging 3.75 Å and a zigzag arrangement between nearest neighbor Pt atoms, whereas the red form is devoid of solvent within the crystal lattice and contains complexes stacked with a nearly linear arrangement of Pt(II) ions having an average distance of 3.33 Å. On the basis of the crystallog. data, it is evident that sorption of methanol vapor induces a change in intermol. contacts and Pt···Pt interactions in going from red to orange. Disruption of the d8-d8 metallophilic interactions consequently alters the emitting state from 3[(d)σ*-π*(terpyridine)] that is formally a metal-metal-to-ligand charge transfer (MMLCT) state in the red form to one in which the HOMO corresponds to a more localized Pt(d) orbital in the red form (3MLCT).

There is still a lot of research devoted to this compound(SMILES：CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1)Name: 4-(p-Tolyl)-2,2:6,2-terpyridine, and with the development of science, more effects of this compound(89972-77-0) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Fan, Yuyang; Tippayawong, Nakorn; Wei, Guoqiang; Huang, Zhen; Zhao, Kun; Jiang, Liqun; Zheng, Anqing; Zhao, Zengli; Li, Haibin published the article 《Minimizing tar formation whilst enhancing syngas production by integrating biomass torrefaction pretreatment with chemical looping gasification》. Keywords: syngas production chem looping gasification biomass torrefaction pretreatment.They researched the compound: 5,6-Dihydro-2H-pyran-2-one( cas:3393-45-1 ).HPLC of Formula: 3393-45-1. 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:3393-45-1) here.

The objective of this study is to investigate the effect of torrefaction pretreatment on the syngas production and tar formation from chem. looping gasification (CLG) of biomass over different oxygen carriers. The torrefaction of eucalyptus wood and subsequent CLG were systematically studied by using the fixed bed reactors coupling with various anal. methods. The exptl. results demonstrate that torrefaction played significant impacts on CLG of eucalyptus wood using iron ore as an oxygen carrier. The gas yield and carbon conversion efficiency from CLG of eucalyptus wood were lowered by torrefaction, while the tar content was evidently reduced from 43.6 to 17.6 g/Nm3. These results could be due to the devolatilization, polycondensation, and carbonization of eucalyptus wood during torrefaction, resulting in the formation of fewer tar precursors and more char with lower reactivity during subsequent CLG. The neg. impacts of torrefaction on the gas yield and carbon conversion efficiency of CLG can be effectively overcome by the selection of suitable oxygen carriers. Five metallic ferrites were successfully synthesized and used to replace iron ore for CLG of torrefied eucalyptus wood obtained at 280°C. It is found that NiFe2O4 reduced the tar content by 88.8% and improved the gas yield by 27.5% compared to CLG of untreated eucalyptus wood over iron ore. These results suggest that integrating biomass torrefaction pretreatment with CLG is an efficient strategy for enhancing syngas production while minimizing tar formation.

There is still a lot of research devoted to this compound(SMILES：O=C1C=CCCO1)HPLC of Formula: 3393-45-1, and with the development of science, more effects of this compound(3393-45-1) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 2834-05-1, is researched, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2Journal, New Journal of Chemistry called A cholesterol based imidazolium ionic liquid crystal: synthesis, characterisation and its dual application as an electrolyte and electrode material, Author is Mangaiyarkarasi, R.; Selvam, S.; Ganesh, V.; Umadevi, S., the main research direction is cholesterol imidazolium ionic liquid crystal preparation electrolyte electrode.Category: catalyst-ligand.

A new ionic liquid crystal (ILC) containing cholesterol and bearing a terminal imidazolium moiety was synthesized and its mesophase behavior was investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD) studies. The ILC displayed an intercalated lamellar mesophase having a wide phase range. Cyclic voltammetry studies of the synthesized ILC revealed electrochem. stability with a good electrochem. window. Further, the electrochem. performance of the ILC was evaluated as an electrolyte (0.5% in ethanol) for supercapacitor applications using a three electrode system consisting of a graphene oxide-manganese dioxide (100 μm) coated carbon fiber electrode, silver-silver chloride (Ag-AgCl) reference and platinum foil counter electrodes. Among three different ratios of graphene oxide-manganese dioxide (1 : 1, 1 : 0.5, and 0.5 : 1) investigated, the electrode containing 0.5 : 1 wt% graphene oxide-manganese dioxide over carbon fiber showed good capacitive behavior with a specific capacitance of 157.5 F g-1 at a constant c.d. of 0.5 A g-1 along with a good cyclic stability. In addition, the ILC was also studied as an electrode material in combination with carbon paste for investigating electron transfer reactions.

There is still a lot of research devoted to this compound(SMILES：O=C(O)CCCCCCCCCCBr)Category: catalyst-ligand, and with the development of science, more effects of this compound(2834-05-1) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Computed Properties of C6H12ClN3O3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: DL-Histidine monohydrochloride monohydrate, is researched, Molecular C6H12ClN3O3, CAS is 123333-71-1, about Molecular docking and dynamic studies of different Histidine derivatives as HDAC2 inhibitors. Author is Ramakrishnan, Geetha; Kandakatla, Naresh.

Histone deacetylases 2 (HDAC2) proteins belongs to Class I histone deacetylase (HDAC) family and an important target for the treatment of different types of cancer. Of the various HDAC2 inhibitors, our earlier investigations proved that presence of histidine moiety yielded better clin. results. The search of histidine containing compounds is done extensively which yielded a total of 1284 hit compounds The chosen compounds were subjected to mol. docking in the active site of HDAC2 (PDB: 3MAX) and screening done based on Lipinski rule of 5, resulted in twenty hit compounds as novel potential HDAC2 inhibitors. The careful anal. of the investigation gave the compound ZINC13282319-(2S)-2-(3-aminopropanamido)-3-(3H-imidazol-4-yl)propanoic acid as the most promising compound based on the docking score and hydrogen bond interaction. The best possible interactions of the lead compounds are simulated for stability using mol. dynamics. The results of this investigation provide valuable information on the design of highly selective histidine derivatives

There is still a lot of research devoted to this compound(SMILES：O=C(O)C(N)CC1=CNC=N1.[H]Cl.[H]O[H])Computed Properties of C6H12ClN3O3, and with the development of science, more effects of this compound(123333-71-1) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Reference of 11-Bromoundecanoic acid. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Expansion of the structure-activity relationship of branched chain fatty acids: Effect of unsaturation and branching group size on anticancer activity. Author is Roy, Ritik; Roseblade, Ariane; Rawling, Tristan.

Branched chain fatty acids (BCFAs) are a class of fatty acid with promising anticancer activity. The BCFA 13-methyltetradecanoic acid (13-MTD) inhibits tumor growth in vivo without toxicity but efficacy is limited by moderate potency, a property shared by all known BCFAs. The mechanism of action of BCFAs has not been fully elucidated, and in the absence of a clearly defined target optimization of BCFA potency must rely on structure-activity relationships. Our current understanding of the structural features that promote BCFA anticancer activity is limited by the low structural diversity of reported BCFAs. The aim of this study was to examine the effects of two new structural modifications- unsaturation and branching group size- on BCFA activity. Thus, homologous series of saturated and cis-Δ11 unsaturated BCFAs were synthesized bearing Me, Et, Pr and Bu branching groups, and were screened in vitro for activity against three human cancer cell lines. Potencies of the new BCFAs were compared to 13-MTD and an unbranched monounstaurated fatty acid (MUFA) bearing a cis-Δ11 double bond. The principal findings to emerge were that the anticancer activity of BCFAs was adversly affected by larger branching groups but significantly improved by incorporation of a cis-Δ11 double bond into the BCFA alkyl chain. This study provides new structure-activity relationship insights that may be used to develop BCFAs with improved potency and therapeutic potential.

There is still a lot of research devoted to this compound(SMILES：O=C(O)CCCCCCCCCCBr)Reference of 11-Bromoundecanoic acid, and with the development of science, more effects of this compound(2834-05-1) can be discovered.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Rupp, Mira; Auvray, Thomas; Rousset, Elodie; Mercier, Gabriel M.; Marvaud, Valerie; Kurth, Dirk G.; Hanan, Garry S. published the article 《Photocatalytic hydrogen evolution driven by a heteroleptic ruthenium(II) bis(terpyridine) complex》. Keywords: ruthenium terpyridine photolysis hydrogen evolution catalyst.They researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Safety of 4-(p-Tolyl)-2,2:6,2-terpyridine. 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:89972-77-0) here.

Since the initial report by Lehn et al. in 1979, ruthenium tris(bipyridine) ([Ru(bpy)3]2+) and its numerous derivatives were applied as photosensitizers (PSs) in a large panel of photocatalytic conditions while the bis(terpyridine) analogs were disregarded because of their low quantum yields and short excited-state lifetimes. In this study, we prepared a new terpyridine ligand, 4′-(4-bromophenyl)-4,4”’:4”,4””-dipyridinyl- 2,2′:6′,2”-terpyridine (Bipytpy) and used it to prepare the heteroleptic complex [Ru(Tolyltpy)(Bipytpy)](PF6)2 (1; Tolyltpy = 4′-tolyl-2,2′:6′,2′-terpyridine). Complex 1 exhibits enhanced photophys. properties with a higher quantum yield (7.4 × 10-4) and a longer excited-state lifetime (3.8 ns) compared to those of [Ru(Tolyltpy)2](PF6)2 (3 × 10-5 and 0.74 ns, resp.). These enhanced photophys. characteristics and the potential for PS-catalyst interaction through the peripheral pyridines led us to apply the complex for visible-light-driven hydrogen evolution. The photocatalytic system based on 1 as the PS, triethanolamine as a sacrificial donor, and cobaloxime as a catalyst exhibits sustained activity over more than 10 days under blue-light irradiation (light-emitting diode centered at 450 nm). A maximum turnover number of 764 was obtained after 12 days.

If you want to learn more about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Safety of 4-(p-Tolyl)-2,2:6,2-terpyridine, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI