Tag: M.W:100-200

Fu, Pengkun; Li, Yuyan; Qin, Tianrui; Li, Duqingcuo; Shi, Zhan; Xiong, Dingqi; Yang, Qinglin; Zhu, Yanyan; Dong, Xiuyan published an article about the compound: 1,10-Phenanthroline( cas:66-71-7,SMILESS:C1=CC3=C(C2=NC=CC=C12)N=CC=C3 ).Safety of 1,10-Phenanthroline. 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:66-71-7) through the article.

Three new complexes synthesized by hydrothermal method with 4-(3-Carboxy-phenoxy)-phthalic acid (H3L1) and 2-(4-Carboxy-benzyl)-terephthalic acid (H3L2) as main ligands, 1,10-phenanthroline (1,10-phen) 1,4-bis(1-imidazolyl)benzene(dib) and 1,4-di(pyridin-4-yl)benzene (4,4′-bipb) as auxiliary ligands: [Cd3(L1)2(1,10-phen)2·H2O]n (1), [Co(HL2)(dib)(H2O)2]n (2), [Co(HL2)(bipb)]n (3). Single-crystal X-ray diffraction shows that 1 belongs to the monoclinic system and the P-1 space group, 2 belongs to the monoclinic system and the P-1 space group, 3 belongs to the triclinic system and the P21/n space group. Complexes 1-3 are 1-D chain, 2-D network and 3-D structures, resp. Moreover, Hirshfeld surface anal. analyzed the intermol. interaction and surface electron distribution of 1-3. The photoluminescence properties of complex 1 and magnetic, electrochem. properties of complex 3 were studied.

Different reactions of this compound(1,10-Phenanthroline)Safety of 1,10-Phenanthroline require different conditions, so the reaction conditions are very important.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Category: piperazines. 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: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about A combinatorial synthesis of a macrosphelide library utilizing a palladium-catalyzed carbonylation on a polymer support. Author is Takahashi, Takashi; Kusaka, Shin-ichi; Doi, Takayuki; Sunazuka, Toshiaki; Omura, Satoshi.

The combinatorial synthesis of a 122-membered macrosphelide library including macrosphelides A (I), C, E, and F has been achieved based on a unique strategy for a three-component coupling utilizing a palladium-catalyzed chemoselective carbonylation and an unprecedented macrolactonization on a polymer support.

Different reactions of this compound((S)-Methyl 3-hydroxybutanoate)Category: piperazines require different conditions, so the reaction conditions are very important.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Product Details of 53562-86-0. 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)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Synthesis of 1,1′-bis(phosphetano)ferrocenes, a new class of chiral ligands for asymmetric catalysis. Author is Marinetti, Angela; Labrue, Francis; Genet, Jean-Pierre.

The C2-sym., chiral 1,1′-bis(phosphetano)ferrocenes I (R = Me, CHMe2) were prepared from the cyclic sulfates of optically pure 1,3-diols. They were successfully tested in the Rh-catalyzed hydrogenation of unsaturated substrates. E.g., hydrogenation of H2C:C(CO2Me)CH2CO2Me in MeOH in presence of a rhodium catalyst formed in situ from (COD)2RhOTf and I (R = Me) gave 100% conversion to (R)-MeCH(CO2Me)CH2CO2Me in 91% ee.

The article 《Synthesis of 1,1′-bis(phosphetano)ferrocenes, a new class of chiral ligands for asymmetric catalysis》 also mentions many details about this compound(53562-86-0)Product Details of 53562-86-0, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Quality Control of 6-Acetylbenzo[d]oxazol-2(3H)-one. 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: 6-Acetylbenzo[d]oxazol-2(3H)-one, is researched, Molecular C9H7NO3, CAS is 54903-09-2, about Pharmacomodulation of the benzoxazolinone model by aryl-piperazine structure. Author is Bermann, Marie Christine; Bonte, Jean Paul; Lesieur-Demarquilly, Isabelle; Debaert, Michel; Lesieur, Daniel; Leinot, Michel; Benoit, Joseph; Labrid, Claude.

N-(Piperazinoalkyl)benzoxazolinones I (R = H, CF3, OMe, F, Me; n = 1, 2, 3; R1 = H, PhCO, 2-ClC6H4CO, MeCO, EtCO) were prepared from benzoxazolinones II; I have analgesic activity and are useful as psychotropics (no data). Thus, II (R1 = H) was heated with HCHO and 1-phenylpiperazine to give I (R = R1 = H, n = 1). I (n = 2, 3) were prepared from II and 1-(chloroalkyl)-4-phenylpiperazines.

The article 《Pharmacomodulation of the benzoxazolinone model by aryl-piperazine structure》 also mentions many details about this compound(54903-09-2)Quality Control of 6-Acetylbenzo[d]oxazol-2(3H)-one, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Application In Synthesis of (S)-1-(Dimethylamino)propan-2-ol. 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)-1-(Dimethylamino)propan-2-ol, is researched, Molecular C5H13NO, CAS is 53636-17-2, about Cationic BINAP-Ru(II) Halide Complexes: Highly Efficient Catalysts for Stereoselective Asymmetric Hydrogenation of α- and β-Functionalized Ketones. Author is Mashima, Kazushi; Kusano, Koh-hei; Sato, Naomasa; Matsumura, Yoh-ichi; Nozaki, Kyoko; Kumobayashi, Hidenori; Sayo, Noboru; Hori, Yoji; Ishizaki, Takero.

Cationic ruthenium-BINAP complexes of the formula [RuX[(S)-BINAP](arene)]Y, where X = Cl, Br, I; Y = Cl, Br, I, BF4, B(C6H5)4; arene = benzene, p-cymene, Et benzoate, and their enantiomers have been prepared by the reaction of arene-ruthenium halide complexes with (S)-BINAP or (R)-BINAP [BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]. Structures of the complexes were established by spectroscopy, conductivity, and a single-crystal x-ray anal. BINAP derivatives with various substituents at the para and meta positions of four Ph rings on phosphorus atoms and their cationic Ru(II) complexes have also been synthesized. These BINAP-Ru(II) complexes have been used as catalysts for the asym. hydrogenation of various unsaturated organic compounds such as α- and β-keto esters, allylic alcs., and α,β-unsaturated carboxylic acids in excellent diastereo- and/or enantioselectivities. Catalytic activities and stereoselectivities depend highly on reaction conditions such as solvent, temperature, and additives. Variation of halogen ligands bound to ruthenium atom and substituents on four Ph rings of BINAP also have exerted remarkable effects on the efficiency of the catalysis. Asym. hydrogenation of methyl(±)-2-(benzamidomethyl)-3-oxobutanoate catalyzed by the species derived from [RuI2(p-cymene)]2 and 3,5-(Me3C)2-BINAP afforded the corresponding syn-(2S,3R)-I in 98% de and 99% ee.

The article 《Cationic BINAP-Ru(II) Halide Complexes: Highly Efficient Catalysts for Stereoselective Asymmetric Hydrogenation of α- and β-Functionalized Ketones》 also mentions many details about this compound(53636-17-2)Application In Synthesis of (S)-1-(Dimethylamino)propan-2-ol, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

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: 53562-86-0, is researched, SMILESS is C[C@H](O)CC(OC)=O, Molecular C5H10O3Journal, Carbon called Reduced graphene oxide supported chiral Ni particles as magnetically reusable and enantioselective catalyst for asymmetric hydrogenation, Author is Ding, Chao; Wei, Weili; Sun, Hanjun; Ding, Jinhua; Ren, Jinsong; Qu, Xiaogang, the main research direction is reduced graphene oxide supported nickel magnetically reusable enantioselective catalyst; asym hydrogenation enantioselective reduced graphene oxide supported nickel.Safety of (S)-Methyl 3-hydroxybutanoate.

A reduced graphene oxide (rGO) supported chiral-modified Ni catalyst was synthesized, characterized and employed for asym. hydrogenation. The prepared hybrid catalyst could produce each enantiomer with D- or L-tartaric acid as chiral modifier and exhibited a high TOF (20160 h-1) and enantioselectivity (enantiomeric excess, 98.5%) for asym. hydrogenation of Me acetoacetate. The high catalytic activity and enantioselectivity were mainly attributed to the unique properties of the support rGO, as it had a large sp. surface area to sustain and stabilize Ni particles and its high charge carrier mobility could enable the readily transfer of electrons in the reaction process. Besides, the catalyst could also gain an enhanced reactant sorption with the support of rGO, thus achieved a greatly catalysis enhancement. The ferromagnetism of Ni made the catalyst easier for separation and reuse. The catalytic and recycling performance of the prepared chiral Ni catalyst demonstrated that rGO was indeed a promising support to improve activity, enantioselectivity and durability of catalysts, and the prepared catalysts were promising reusable heterogeneous catalysts for asym. hydrogenation.

The article 《Reduced graphene oxide supported chiral Ni particles as magnetically reusable and enantioselective catalyst for asymmetric hydrogenation》 also mentions many details about this compound(53562-86-0)Safety of (S)-Methyl 3-hydroxybutanoate, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

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: 1,10-Phenanthroline, is researched, Molecular C12H8N2, CAS is 66-71-7, about Tridentate acylhydrazone copper(II) complexes with heterocyclic bases as coligands. Synthesis, spectroscopic studies, crystal structure and cytotoxicity assays.Recommanded Product: 66-71-7.

Two new pentacoordinated copper(II) hydrazone coordination compounds with 2,2′-bipyridine (i) or 1,10-phenanthroline (ii) as coligands were synthesized and characterized in the solid state and in solution by spectroscopic methods (FTIR, Raman, UV-visible, EPR). Single crystal x-ray studies show that they have closely related mol. structures with the copper center in a distorted square pyramidal O2N3 environment. The N-acylhydrazone, [4-hydroxy-NN-(E)2-hydroxy-3-methoxybenzylidene]benzohydrazide, H2L, coordinates tridentate through its ONO donor atoms as monoanion (HL-) in the cationic complex (i), [Cu(HL)(bipy)](NO3). During the period that takes the synthesis reaction of compound (ii), [Cu(L)(o-phen)] to complete, keto-amine to enol-imine tautomerization of H2L occurs and the hydrazone coordinates tridentate as dianionic ligand (L2-). The fivefold coordination sphere of the complexes is completed with the nitrogen atoms of the resp. coligands. Cytotoxicity studies against bone (MG-63, IC50(I) = 5.6 ± 1.0, IC50(II) = 3.5 ± 0.3), breast (MCF7, IC50(I) = 10.8 ± 1.9, IC50(II) = 4.0 ± 1.3), (MDA-MB-231, IC50(I) = 11.4 ± 0.6, IC50(II) = 5.3 ± 0.2) and lung cancer cells (A549, IC50(I) = 7.7 ± 0.7, IC50(II) = 7.0 ± 0.4) reveals increased effectiveness of both complexes compared with the free ligand, the copper nitrate salt and the reference metallodrug cisplatin (CDDP).

The article 《Tridentate acylhydrazone copper(II) complexes with heterocyclic bases as coligands. Synthesis, spectroscopic studies, crystal structure and cytotoxicity assays》 also mentions many details about this compound(66-71-7)Recommanded Product: 66-71-7, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

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.Noyori, Ryoji; Ohkuma, Takeshi; Kitamura, Masato; Takaya, Hidemasa; Sayo, Noboru; Kumobayashi, Hidenori; Akutagawa, Susumu researched the compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0 ).Quality Control of (S)-Methyl 3-hydroxybutanoate.They published the article 《Asymmetric hydrogenation of β-keto carboxylic esters. A practical, purely chemical access to β-hydroxy esters in high enantiomeric purity》 about this compound( cas:53562-86-0 ) in Journal of the American Chemical Society. Keywords: exo ester asym hydrogenation ruthenium. We’ll tell you more about this compound (cas:53562-86-0).

Q = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl. Although Ru(OAc)2(R)-Q was ineffective as a catalyst for asym. hydrogenation of MeCOCH2CO2Me, RuX2 (X = Cl, Br, I) complexes with (R)- or (S)-Q were highly effective for RCOCH2CO2R1 (R, R1 = Me, Me; Me, Et; Me, Me2CH; Me, Me3C; Et, Me; Bu, Me; Me2CH, Me; Ph, Et) giving up to 99% yields with up to 99% enantiomeric excess.

The article 《Asymmetric hydrogenation of β-keto carboxylic esters. A practical, purely chemical access to β-hydroxy esters in high enantiomeric purity》 also mentions many details about this compound(53562-86-0)Quality Control of (S)-Methyl 3-hydroxybutanoate, you can pay attention to it, because details determine success or failure

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1,10-Phenanthroline(SMILESS: C1=CC3=C(C2=NC=CC=C12)N=CC=C3,cas:66-71-7) is researched.Recommanded Product: 16004-15-2. The article 《Mixed-Ligand Uranyl Squarate Coordination Polymers: Structure Regulation and Redox Activity》 in relation to this compound, is published in Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:66-71-7).

The electron-rich squarate ion (C4O42-, SA2-) possesses electronic delocalization over the entire mol. and good redox activity, and the functionalization of metal-organic complexes with the SA2- group is desirable. In this work, a mixed-ligand method is used to construct novel uranyl squarate coordination polymers utilizing 4,4′-bipyridine (bpy), 4,4′-bipyridine-N,N’-dioxide (bpydo), 1,10-phenanthroline (phen), 4,4′-vinylenedipyridine (vidpy), and in situ formed oxalate (OA2-) as ancillary ligands. Seven mixed-ligand uranyl compounds, [(UO2)(OH)(SA)](Hbpy) (1), [(UO2)(H2O)(SA)2](H2bpy) (2), (UO2)(H2O)(SA)(bpydo)·2H2O (3), (UO2)(H2O)(SA)(phen)·H2O (4), (UO2)(OH)(SA)0.5(phen)·H2O (5), [(UO2)(SA)(OA)0.5](Hphen) (6), and [(UO2)(SA)(OA)0.5](Hvidpy) (7), with varying crystal structures were synthesized under hydrothermal conditions. Compound 1, together with bpy mols. filling in the interlayer space as template agents, has a two-dimensional (2D) network structure, while 2 gives a one-dimensional (1D) chain based on mononuclear uranium units. Compound 3 shows a neutral 2D network through the combined linkage of SA2- and bpydo. Both 4 and 5 have a similar chain-like structure due to the capping effect of phen motifs, while phen mols. in 6 act as templating agents after protonation. Similar to 6, compound 7 has a “”sandwich-like”” structure in which the Hvidpy motifs locate in the voids of layers of 2D uranyl-squarate networks. The redox properties of typical mixed-ligand uranyl-squarate compounds, 1, 4, and 5 with high phase purity, are characterized using cyclic voltammetry. All three of these uranyl coordination compounds show anode peaks (Ea) at 0.777, 0.804, and 0.760 V, resp., which correspond to the oxidation process of SA2- → SA. Meanwhile, cathodic peaks (Ec) at -0.328, -0.315, and -0.323 V corresponding to the reduction process of U(VI) → U(V) are also observed The results reveal that all three of these uranyl coordination compounds show good redox activity and, most importantly, the interplay between two different redox-active motifs of SA2- organic linker and uranyl node. This work enriches the library of redox-active uranyl compounds and provides a feasible mixed-ligand method for regulating the synthesis of functional actinide compounds

After consulting a lot of data, we found that this compound(66-71-7)Reference of 1,10-Phenanthroline can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Chang, Chih-Yu; Wu, Kuan-Si; Chang, Chun-Ya published an article about the compound: 1,10-Phenanthroline( cas:66-71-7,SMILESS:C1=CC3=C(C2=NC=CC=C12)N=CC=C3 ).Electric Literature of C12H8N2. 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:66-71-7) through the article.

High-performance and long-term stable self-powered photodetectors (PDs) based on methylammonium lead iodide nanowires (NWs) are demonstrated by incorporating n-type conjugated polymer poly{2,5-bis(2-dodecylhexadecyl)-3,6-di(thiophen-2-yl)pyrrolo-[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-(E)-1,2-bis(3-cyanothiophen-2-yl)ethene} (DPP-CNTVT) as multi-functional interfacial layer. Incorporating DPP-CNTVT with abundant Lewis base functional groups can effectively passivate under-coordinated Pb2+ defects, enabling perovskite NWs to exhibit remarkable stability and optoelectronic properties. Meanwhile, high electron mobility, together with the proper energy level of DPP-CNTVT, makes it ideal for use as an electron transport layer. Particularly, by taking advantage of the low bandgap of DPP-CNTVT, the utilization of low energy photons can be improved. The resulting PDs exhibit responsivity up to 0.50 A W-1, specific detectivity approaching 1014 Jones, and a wide linear dynamic range of nearly 265 dB under zero bias operation, which represent the best results ever reported for self-powered perovskite PDs. More encouragingly, with the incorporation of an appropriate encapsulation layer, nearly 90% of the initial detectivity of PDs can be secured after 15 300 h of continuous operation in ambient conditions. The application of NWs PDs for solution-processed reflective-mode pulse oximetry is also demonstrated. This study provides valuable insights into developing efficient and ultra-stable self-powered perovskite PDs through interfacial engineering, which can accelerate the practical applications of this emerging technol.

After consulting a lot of data, we found that this compound(66-71-7)Electric Literature of C12H8N2 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics