Tag: M.W:100-200

Tai, A.; Kikukawa, T.; Sugimura, T.; Inoue, Y.; Abe, S.; Osawa, T.; Harada, T. published an article about the compound: 2,6-Dimethyl-3,5-heptanedione( cas:18362-64-6,SMILESS:CC(C)C(CC(C(C)C)=O)=O ).Quality Control of 2,6-Dimethyl-3,5-heptanedione. 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:18362-64-6) through the article.

Irradiation of ultrasound on Raney nickel catalyst in water and removing the resulting turbid supernatant from the rest gave excellent nickel (RNi-U) for asym. modified nickel catalyst. SEM-XMA studies clarified that the treatment of RNi by ultrasound effectively smashed off the aluminum enriched particle from the catalyst. The tartaric acid-NaBr-modified RNi-U(TA-NaBr-MRNi-U) showed high enantio-differentiating ability as well as catalytic activity in the hydrogenation of β-diketones and β-keto esters.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Safety of 2,6-Dimethyl-3,5-heptanedione. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Microwave-assisted organic synthesis of a high-affinity pyrazolo-pyrimidinyl TSPO ligand. Author is Tang, Dewei; Buck, Jason R.; Hight, Matthew R.; Manning, H. Charles.

A dramatically improved total synthesis of the high-affinity translocator protein (TSPO) ligand DPA-714 (I), featuring microwave-assisted organic synthesis (MAOS), was reported. Compared with previously described approaches, this MAOS method dramatically reduced overall reaction time without adversely effecting reaction yields.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Ribeiro da Silva, Manuel A. V.; Irving, R. J. published the article 《Experimental determination of the molar enthalpies of vaporization for some β-diketones》. Keywords: heat evaporation diketone estimation; methyl heptanedione heat evaporation; fluoro pentanedione heat evaporation.They researched the compound: 2,6-Dimethyl-3,5-heptanedione( cas:18362-64-6 ).Reference of 2,6-Dimethyl-3,5-heptanedione. 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:18362-64-6) here.

The measured heats of evaporation at 298.15 K are, in kcal/mol; 2,6-diMe-3,5-heptanedione (13.40); 2,2-diMe-3,5-heptanedione (13.59); 2,2,6-triMe-3,5-heptanedione (13.80); 2,2,6,6-tetraMe-3,5-heptanedione (14.23); 1,1,1-trifluoro-2,4-pentanedione (8.90) and 1,1,1,5,5,5-hexafluoro-2,4-pentanedione (7.31). Attempt was made to determined mol. structure group contribution factors for the heals of evaporation of this group of compounds

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Related Products of 18362-64-6. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Enol content of some β-diketone. Author is Schweitzer, George K.; Benson, Edmund W..

N.M.R. data were gathered on a series of β-diketone which may be viewed as derivatives of 2,4-pentanedione in which the Me groups are replaced by Et, iso-Pr, and tert-Bu groups. These data are interpreted to identify the amounts of the keto and enol forms present in the pure liquid

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Reference of 2,6-Dimethyl-3,5-heptanedione. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Enantioselective synthesis of anti 1,3-diols via Ru(II)-catalyzed hydrogenations. Author is Blanc, Delphine; Ratovelomanana-Vidal, Virginie; Marinetti, Angela; Genet, Jean-Pierre.

The homogeneous Ru-catalyzed hydrogenation of sym. 1,3-diketones was achieved with various ligands including (R,R)-CH2(CHMePPh2)2 (SKEWPHOS) and (R,R)-1,2-bis(2,5-dimethylphosphol-1-yl)benzene (Me-DUPHOS). Complete conversions with ≤99% ee and de were obtained. This represents a new catalytic application of the chiral ligands above.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2,6-Dimethyl-3,5-heptanedione( cas:18362-64-6 ) is researched.Application of 18362-64-6.Jacoby, C.; Braekman, J. C.; Daloze, D. published the article 《Asymmetric synthesis of (3R,5R)- and (3S,5S)-2,6-dimethylheptane-3,5-diol, useful C2 chiral auxiliaries》 about this compound( cas:18362-64-6 ) in Tetrahedron: Asymmetry. Keywords: asym preparation dimethylheptanediol chiral auxiliary. Let’s learn more about this compound (cas:18362-64-6).

(R,R)- and (S,S)-2,6-dimethylheptane-3,5-diol, which are useful C2 chiral auxiliaries, have been both synthesized in high optical purity from 2,6-dimethylheptane-3,5-dione, by using as key step a Sharpless kinetic resolution

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

HPLC of Formula: 111-18-2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about Synergistically integrated phosphonated poly(pentafluorostyrene) for fuel cells. Author is Atanasov, Vladimir; Lee, Albert S.; Park, Eun Joo; Maurya, Sandip; Baca, Ehren D.; Fujimoto, Cy; Hibbs, Michael; Matanovic, Ivana; Kerres, Jochen; Kim, Yu Seung.

Modern electrochem. energy conversion devices require more advanced proton conductors for their broad applications. Phosphonated polymers have been proposed as anhydrous proton conductors for fuel cells. However, the anhydride formation of phosphonic acid functional groups lowers proton conductivity and this prevents the use of phosphonated polymers in fuel cell applications. Here, we report a poly(2,3,5,6-tetrafluorostyrene-4-phosphonic acid) that does not undergo anhydride formation and thus maintains protonic conductivity above 200°C. We use the phosphonated polymer in fuel cell electrodes with an ion-pair coordinated membrane in a membrane electrode assembly. This synergistically integrated fuel cell reached peak power densities of 1,130 mW cm-2 at 160°C and 1,740 mW cm-2 at 240°C under H2/O2 conditions, substantially outperforming polybenzimidazole- and metal phosphate-based fuel cells. Our result indicates a pathway towards using phosphonated polymers in high-performance fuel cells under hot and dry operating conditions.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

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 Steric crowding effect of 1,3-diketonates on the structures and the solution behaviors of nickel(II) mixed-ligand complexes, published in 2010-07-15, which mentions a compound: 18362-64-6, mainly applied to nickel diketonate bulky ligand diamine complex preparation structure; ligand strength nickel diketonate bulky ligand diamine complex; stability nickel diketonate bulky ligand diamine complex; crystal structure nickel diketonate bulky ligand diamine complex; mol structure nickel diketonate bulky ligand diamine complex, Formula: C9H16O2.

Seven nickel(II) mixed-ligand diketonate complexes, containing bulky substituents, [Ni(RCOCHCOR)(diamine)X] and [Ni(RCOCHCOR)(diamine)][Y] [R = Me, Et, iPr; amine = Me2NCH2CH2NMe2 (tmen), 1,1′-(1,2-ethanediyl)bis(piperidine) (dipe); X = NO3, Y = BPh4, BF4] were prepared The crystal structures were analyzed: nitrate complexes have a six-coordinated octahedral structure with a bidentate-coordinated NO3-, and each tetraphenylborate complex has a four-coordinated square-planar structure. The ligand field strength of [Ni(RCOCHCOR)(diamine)]BPh4 in the solid state increases in the order: [Ni(iPrCOCHCOiPr)(dipe)]BPh4 < [Ni(EtCOCHCOEt)(dipe)]BPh4 < [Ni(iPrCOCHCOiPr)(tmen)]BPh4 = [Ni(EtCOCHCOEt)(tmen)]BPh4. In solution, the change of the color depending on the donor/acceptor ability of the solvent, i.e., solvatochromism was observed When DMSO was added to a solution of [Ni(RCOCHCOR)(diamine)]BPh4 in inert 1,2-dichloroethane, the adduct formation constants are in the order: [Ni(iPrCOCHCOiPr)(dipe)]BPh4 < [Ni(EtCOCHCOEt)(dipe)]BPh4 << [Ni(iPrCOCHCOiPr)(tmen)]BPh4 = [Ni(EtCOCHCOEt)(tmen)]BPh4, reflecting the difference in steric hindrance of the ligands rather than the difference in ligand field strength. The steric crowding effect of 1,3-diketonates was observed in the solid state and solution when bulky dipe is used as diamine. This literature about this compound(18362-64-6)Formula: C9H16O2has given us a lot of inspiration, and I hope that the research on this compound(2,6-Dimethyl-3,5-heptanedione) can be further advanced. Maybe we can get more compounds in a similar way.

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Mercury(II) complexes of β-diketones》. Authors are Nonhebel, D. C..The article about the compound:2,6-Dimethyl-3,5-heptanedionecas:18362-64-6,SMILESS:CC(C)C(CC(C(C)C)=O)=O).Name: 2,6-Dimethyl-3,5-heptanedione. Through the article, more information about this compound (cas:18362-64-6) is conveyed.

Hg derivatives of diisobutyrylmethane and dipivaloylmethane are enolates, not cyclic derivatives like other metal β-diketones, as shown by infrared and reactions with BzCl and p-nitrobenzoyl chloride to give O-acylated β-diketones.

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Thiazole | C3H3NS – PubChem,
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Related Products of 18362-64-6. 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: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Coordination abilities in aqueous 1:1 metal chelates of 1,3-dicarbonylic ligands: absolute hardness and absolute electronegativity. Author is Blanco, Carlos A..

For a series of monochelates of metal and oxo-metal ions such as Ni2+, Co2+, Cu2+, Fe3+, Cr3+, VO2+, UO22+ with structurally similar 1,3-dicarbonylic ligands it has been found that the logarithms of stability constants are essentially linear functions of the ligand pK. Correlation data show that for a given transition metal ion it is possible to estimate approx. stability constants of a wide range of 1,3-dicarbonylic monochelates and, therefore, predict overall equilibrium constants Results have provided information concerning absolute hardness and absolute electronegativity of the metal ion considered against the stability of 1:1 chelates in aqueous solution

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Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica