Tag: M.W:200-300

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: 52287-51-1, is researched, SMILESS is BrC1=CC=C2OCCOC2=C1, Molecular C8H7BrO2Journal, Tetrahedron Letters called Synthesis of new chiral diphosphine ligand (BisbenzodioxanPhos) and its application in asymmetric catalytic hydrogenation, Author is Pai, Cheng-Chao; Li, Yue-Ming; Zhou, Zhong-Yuan; Chan, Albert S. C., the main research direction is diphosphine chiral ligand preparation structure ligand ruthenium hydrogenation catalyst; crystal structure bis ethylenedioxybiphenyldiyl bisdiphenylphosphine chiral ligand; mol structure bis ethylenedioxybiphenyldiyl bisdiphenylphosphine chiral ligand.Related Products of 52287-51-1.

The new chiral diphosphine ligand [(5,6),(5′,6′)-bis(1,2-ethylenedioxy)biphenyl-2,2′-diyl]bis(diphenylphosphine) (I; BisbenzodioxanPhos) was successfully prepared and used in Ru-catalyzed asym. hydrogenation of 2-(6′-methoxy-2′-naphthyl)propenoic acid and β-keto esters with high enantioselectivity (92.2% and up to 99.5% ee, resp.).

When you point to this article, it is believed that you are also very interested in this compound(52287-51-1)Related Products of 52287-51-1 and due to space limitations, I can only present the most important information.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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 Novel ATP-Competitive Kinesin Spindle Protein Inhibitors, published in 2007-10-04, which mentions a compound: 52287-51-1, mainly applied to biphenyl sulfonamide antitumor kinesin spindle protein inhibitor SAR, Computed Properties of C8H7BrO2.

Kinesin spindle protein (KSP), an ATPase responsible for spindle pole separation during mitosis that is present only in proliferating cells, has become a novel and attractive anticancer target with potential for reduced side effects compared to currently available therapies. We report herein the discovery of the first known ATP-competitive inhibitors of KSP, which display a unique activity profile as compared to the known loop 5 (L5) allosteric KSP inhibitors that are currently under clin. evaluation. Optimization of this series led to the identification of biphenyl sulfamide 20 (I), a potent KSP inhibitor with in vitro antiproliferative activity against human cells with either wild-type KSP (HCT116) or mutant KSP (HCT116 D130V). In a murine xenograft model with HCT116 D130V tumors, 20 showed significant antitumor activity following i.p. dosing, providing in vivo proof-of-principle of the efficacy of an ATP-competitive KSP inhibitor vs. tumors that are resistant to the other known KSP inhibitors.

When you point to this article, it is believed that you are also very interested in this compound(52287-51-1)Computed Properties of C8H7BrO2 and due to space limitations, I can only present the most important information.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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: 814-94-8, is researched, Molecular C2O4Sn, about Morphology-dependent highly active microcrystalline stannous oxalate photocatalysts with selectively exposed facets and low specific surface areas, the main research direction is morphol microcrystalline stannous oxalate photocatalyst Methyl Orange Rhodamine B.Synthetic Route of C2O4Sn.

To achieve high photocatalytic activity, the sizes of photocatalysts are usually reduced to nanoscales. However, nano-sized particles are difficult to be separated and recycled. In this paper, we successfully fabricate stannous oxalate microcrystals with selectively exposed facets and various morphologies (prismoids, tubes, rods and needles). The photocatalytic activities are comparative or even higher than that of com. Degussa P25 nano titanium dioxide under both full spectrum light and ultra-violet irradiation, even though the stannous oxalate particles are in micrometer size. The exposure of {101} polar facets could drive photogenerated charge separation, and thus accelerates photocatalysis. The photocatalytic activities of the optimized sample (fragmented prismoids) with sp. surface areas about 1.18 m2/g are 2.49 and 2.67 times higher than that of the com. Degussa P25 nano titanium dioxide (sp. surface areas: 48.59 m2/g) under both full spectrum light and ultra-violet irradiation in methyl orange degradation, resp. The micro/submicron-sized particles could be easily separated and recycled after waste water treatment, and catalysts can be synthesized with a large amount by a facile chem. precipitation method. Given these factors, micro/submicron sized stannous oxalate catalysts are expected to be a practical water cleaner.

When you point to this article, it is believed that you are also very interested in this compound(814-94-8)Synthetic Route of C2O4Sn and due to space limitations, I can only present the most important information.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Recommanded Product: 52287-51-1. 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: 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine, is researched, Molecular C8H7BrO2, CAS is 52287-51-1, about Nickel-Catalyzed N-Arylation of NH-Sulfoximines with Aryl Halides via Paired Electrolysis. Author is Liu, Dong; Liu, Zhao-Ran; Ma, Cong; Jiao, Ke-Jin; Sun, Bing; Wei, Lei; Lefranc, Julien; Herbert, Simon; Mei, Tian-Sheng.

A novel strategy for the N-arylation of NH-sulfoximines has been developed by merging nickel catalysis and electrochem. (in an undivided cell), thereby providing a practical method for the construction of sulfoximine derivatives Paired electrolysis is employed in this protocol, so a sacrificial anode is not required. Owing to the mild reaction conditions, excellent functional group tolerance and yield are achieved. A preliminary mechanistic study indicates that the anodic oxidation of a NiII species is crucial to promote the reductive elimination of a C-N bond from the resulting NiIII species at room temperature

When you point to this article, it is believed that you are also very interested in this compound(52287-51-1)Recommanded Product: 52287-51-1 and due to space limitations, I can only present the most important information.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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, Catalysts called Catalytic Conversion of Glycerol to Methyl Lactate over Au-CuO/Sn-Beta: The Roles of Sn-Beta, Author is Duan, Ying; Luo, Qianqian; Nie, Renfeng; Wang, Jianshe; Zhang, Yongsheng; Lu, Tianliang; Xu, Chunbao, which mentions a compound: 814-94-8, SMILESS is O=C([O-])C([O-])=O.[Sn+2], Molecular C2O4Sn, Recommanded Product: 814-94-8.

The production of Me lactate as a degradable polymer monomer from biomass was an important topic for a sustainable society. In this manuscript, glycerol was oxidated to Me lactate catalyzed by the combination of Au-CuO and Sn-Beta. The influence of Sn content, Sn source, and the preparation conditions for Sn-β was studied. The Au content in Au/CuO was also investigated by varying the Au content in Au/CuO. The catalysts were characterized by XRD, FTIR spectroscopy of pyridine adsorption, and TEM to study the role of Sn and the influence of different parameters for catalyst preparation After the optimization of reaction parameters, the yield of Me lactate from glycerol reached 59% at 363 K after reacting in 1.6 MPa of O2 for 6 h.

In some applications, this compound(814-94-8)Recommanded Product: 814-94-8 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Balgude, Sagar D.; Sethi, Yogesh A.; Kale, Bharat B.; Amalnerkar, Dinesh P.; Adhyapak, Parag V. published an article about the compound: Tin(II) oxalate( cas:814-94-8,SMILESS:O=C([O-])C([O-])=O.[Sn+2] ).Reference of Tin(II) oxalate. 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:814-94-8) through the article.

Herein, a facile hydrothermally-assisted sonochem. approach for the synthesis of a ZnO decorated Sn3O4 nano-heterostructure is reported. The phase purity of the nano-heterostructure was confirmed by X-ray diffraction and Raman spectroscopy. The morphol. anal. demonstrated a nanosheet-like structure of Sn3O4 with a thickness of 20 nm, decorated with ZnO. The optical band gap was found to be 2.60 eV for the ZnO@Sn3O4 nano-heterostructure. Photoluminescence studies revealed the suppression of electron-hole recombination in the ZnO@Sn3O4 nano-heterostructure. The potential efficiency of ZnO@Sn3O4 was further evaluated towards photocatalytic hydrogen production via H2O splitting and degradation of methylene blue (MB) dye. Interestingly, it showed significantly superior photocatalytic activity compared to ZnO and Sn3O4. The complete degradation of MB dye solution was achieved within 40 min. The nano-heterostructure also exhibited enhanced photocatalytic activity towards hydrogen evolution (98.2μmol h-1/0.1 g) via water splitting under natural sunlight. The superior photocatalytic activity of ZnO@Sn3O4 was attributed to vacancy defects created due to its nano-heterostructure.

In some applications, this compound(814-94-8)Reference of Tin(II) oxalate is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Tin(II) oxalate(SMILESS: O=C([O-])C([O-])=O.[Sn+2],cas:814-94-8) is researched.Electric Literature of C14H8BF4Rh. The article 《From bimetallic PdCu nanowires to ternary PdCu-SnO2 nanowires: Interface control for efficient ethanol electrooxidation》 in relation to this compound, is published in Journal of Colloid and Interface Science. Let’s take a look at the latest research on this compound (cas:814-94-8).

At present, although a large number of Pd-based nanowire electrocatalysts were prepared, there are few reports on nanowires containing rich metal oxides. Herein, porous PdCu alloy nanowires and PdCu-SnO2 nanowires were prepared by using a galvanic displacement synthesis method. Due to their 1-dimensional structure, rough surfaces with nonhomogeneous edges, electronic effect, and the advanced PdCu/SnO2 interface of the as-synthesized PdCu-SnO2 nanowire catalysts, they exhibited a mass activity of 7770.0 mA mg-1 towards EtOH oxidation, which was 7.6-fold higher than that of Pd/C catalysts (1025.0 mA mg-1). They behaved strong durability upon chronoamperometry and continuous cyclic voltammetry tests. The electrochem. measurements demonstrated that SnO2 was introduced into the PdCu/SnO2 interface, which promoted the oxidation of EtOH at a lower potential and accelerated the oxidation of Pd-COads via SnO2-OHads to regenerate the active sites. This research highlights the significance of introducing metal oxides into the nanostructure interface, and the performance of Pd-containing catalysts towards EtOH oxidation reaction was greatly improved.

In addition to the literature in the link below, there is a lot of literature about this compound(Tin(II) oxalate)Application In Synthesis of Tin(II) oxalate, illustrating the importance and wide applicability of this compound(814-94-8).

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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 Pd-Catalyzed Carbonylative α-Arylation of Aryl Bromides: Scope and Mechanistic Studies, published in 2013, which mentions a compound: 52287-51-1, mainly applied to palladium catalyzed carbonylative arylation aryl bromide; 1,3-diketones; carbonylation; palladium; reaction mechanisms; synthetic methods, Synthetic Route of C8H7BrO2.

Reaction conditions for the three-component synthesis of aryl 1,3-diketones are reported applying the palladium-catalyzed carbonylative α-arylation of ketones with aryl bromides. The optimal conditions were found by using a catalytic system derived from [Pd(dba)2] (dba = dibenzylideneacetone) as the palladium source and 1,3-bis(diphenylphosphino)propane (DPPP) as the bidentate ligand. These transformations were run in the two-chamber reactor, COware, applying only 1.5 equiv of carbon monoxide generated from the CO-releasing compound, 9-methylfluorene-9-carbonyl chloride (COgen). The methodol. proved adaptable to a wide variety of aryl and heteroaryl bromides leading to a diverse range of aryl 1,3-diketones. A mechanistic investigation of this transformation relying on 31P and 13C NMR spectroscopy was undertaken to determine the possible catalytic pathway. Our results revealed that the combination of [Pd(dba)2] and DPPP was only reactive towards 4-bromoanisole in the presence of the sodium enolate of propiophenone suggesting that a [Pd(dppp)(enolate)] anion was initially generated before the oxidative-addition step. Subsequent CO insertion into an [Pd(Ar)(dppp)(enolate)] species provided the 1,3-diketone. These results indicate that a catalytic cycle, different from the classical carbonylation mechanism proposed by Heck, is operating. To investigate the effect of the dba ligand, the Pd0 precursor, [Pd(η3-1-PhC3H4)(η5-C5H5)], was examined In the presence of DPPP, and in contrast to [Pd(dba)2], its oxidative addition with 4-bromoanisole occurred smoothly providing the [PdBr(Ar)(dppp)] complex. After treatment with CO, the acyl complex [Pd(CO)Br(Ar)(dppp)] was generated, however, its treatment with the sodium enolate led exclusively to the acylated enol in high yield. Nevertheless, the carbonylative α-arylation of 4-bromoanisole with either catalytic or stoichiometric [Pd(η3-1-PhC3H4)(η5-C5H5)] over a short reaction time, led to the 1,3-diketone product. Because none of the acylated enol was detected, this implied that a similar mechanistic pathway is operating as that observed for the same transformation with [Pd(dba)2] as the Pd source.

In addition to the literature in the link below, there is a lot of literature about this compound(6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine)Synthetic Route of C8H7BrO2, illustrating the importance and wide applicability of this compound(52287-51-1).

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Recommanded Product: 52287-51-1. 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. Compound: 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine, is researched, Molecular C8H7BrO2, CAS is 52287-51-1, about An efficient method for the preparation of tertiary esters by palladium-catalyzed alkoxycarbonylation of aryl bromides.

The palladium-catalyzed alkoxycarbonylation of aryl bromides is described for the efficient preparation of tertiary esters. The protocol proved compatible with a wide variety of functionalized (hetero)aromatic bromides, as well as several different sterically hindered tertiary alcs., affording the alkoxycarbonylated products in high yields. Finally, the formation of aromatic trityl esters is discussed.

This literature about this compound(52287-51-1)Recommanded Product: 52287-51-1has given us a lot of inspiration, and I hope that the research on this compound(6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Gan, Yi; Zhang, Ninghui; Huang, Shaoxu; Liu, Yuanhong published the article 《Nickel-Catalyzed Cross-Coupling of Aryl Pivalates with Cyclobutanols Involving C-O and C-C Bond Cleavage》. Keywords: aryl ketone preparation; cyclobutanol aryl pivalate cross coupling nickel catalyst.They researched the compound: 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine( cas:52287-51-1 ).Application In Synthesis of 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine. 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:52287-51-1) here.

An efficient nickel-catalyzed cross-coupling of aryl pivalates with cyclobutanols is described. The use of Ni(cod)2/PCy3/base as the catalytic system enables the cleavage of inert C-O bond and C-C bond under mild conditions, thus providing a facile access to γ-arylated ketones in generally good to excellent yields. This transformation is also characterized by wide substrate scope and functional group compatibility, for example, methoxy, N,N-dimethylamino, keto, ester, fluoro and TMS groups are well-tolerated during the reaction process.

This literature about this compound(52287-51-1)Application In Synthesis of 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxinehas given us a lot of inspiration, and I hope that the research on this compound(6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics