Tag: M.W:100-200

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: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Highly efficient enantio-differentiating hydrogenation over an ultrasonicated Raney nickel catalyst modified with tartaric acid.COA of Formula: C9H16O2.

A tartaric acid-NaBr-modified ultrasonicated Raney nickel catalyst showed enantioselective activity in the hydrogenation of 1,3-diketones and Me 3-oxoalkanonates. Hydrogenation of MeCOCH2COMe with ultrasonicated, modified Raney nickel gave (R)-MeCH(OH)CH2COMe, meso-MeCH(OH)CH2C(OH)Me, and erythro-MeCH(OH)CH2C(OH)Me in a 7:7:86 ratio; the yield of erythro-MeCH(OH)CH2CH(OH)Me (32% enantiomeric excess) was 60%. Reduction of MeCOCH2CO2Me gave (R)-MeCH(OH)CH2CO2Me in 86% enantiomeric excess.

Although many compounds look similar to this compound(18362-64-6)COA of Formula: C9H16O2, numerous studies have shown that this compound(SMILES:CC(C)C(CC(C(C)C)=O)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

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 Pyridotriazoles and pyridoimidazoles. II. 4,5-Diamino-3-picoline and 3,4-diamino-2,6-lutidine derivatives, published in 1967, which mentions a compound: 18232-91-2, Name is 2-Chloro-5-methylpyridine-3,4-diamine, Molecular C6H8ClN3, SDS of cas: 18232-91-2.

A mixture of 3-methyl-4-aminopyridine in 120 ml. concentrated H2SO4 (d. 1.84) was treated portionwise, at 0°, with 48 ml. HNO3 (d. 1.52) and the mixture kept 1 hr. at room temperature, poured into 300 g. crushed ice, and neutralized with concentrated ammonia to pH 7 to give 32 g. 3-methyl-4-nitraminopyridine (I), m. 212° (H2O). When heated 5 hrs. at 50° and worked up as above, 30 g. I afforded 17.5 g. 3-methyl-4-amino-5-nitropyridine (II), m. 193° (H2O). Reduction of 3 g. II in 100 ml. AcOH with 6 g. powd. Fe, 45 min. at reflux temperature, followed by treatment with a few drops of aqueous HgCl2 and 3 g. Zn dust, neutralization with concentrated KOH, and extraction with Et2O gave 2 g. 3-methyl-4,5-diaminopyridine (III), m. 149° (C6H6-alc.); picrate m. 198°. A solution of 3 g. III in 25 ml. H2O and 1 ml. concentrated H2SO4 was diazotized at 0° with 2.8 g. NaNO2 in 20 ml. H2O and the mixture kept 1 hr. at room temperature, concentrated to the half its original volume, and neutralized with KHCO3 to give 2.4 g. 3-methyl-4,5-pyridotriazole (IV, X = H), m. 260° (H2O). When refluxed 6 hrs., concentrated in vacuo, diluted with 10 ml. H2O, neutralized with KHCO3 to pH 7, then evaporated to dryness, and extracted with absolute alc., a solution of 2 g. III and 4 ml. 100% freshly distilled HCO2H afforded 0.8 g. 3-methyl-4,5-pyridoimidazole (V, X = H), m. 255°. Similarly prepared were the following (compound, m.p., and % yield given): 2,4-dimethyl-4-nitraminopyridine, 206° (decomposition), 93.5; 2,6-dimethyl-3-nitro-4-aminopyridine, 126°, 47.5-78.8; 2,6-dimethyl-3,4-pyridotriazole (VI), 267°, 70; 2,6-dimethyl-3,4-pyridoimidazole (VII), 208°, 56; 3-methyl-6-chloro-4,5-pyridotriazole (IV, X = Cl) (VIII), above 320°, 72. Reduction of 3 g. II with 48 g. SnCl2 in 15 ml. concentrated HCl gave 4 g. 3-methyl-4,5-diamino-6-chloropyridine (IX), m. 157° (H2O). A solution of 1.5 g. IX and 3 ml. hydrazine hydrate in 25 ml. absolute alc. refluxed 3 hrs. afforded 1 g. 3-methyl-6-hydrazino-4,5-pyridotriazole (IV, X = NHNH2), m. 265° (H2O). IX (2 g.) in 4 ml. 100% HCO2H refluxed 6 hrs. and worked up as above gave 1.4 g. 3-methyl-6-hydroxy-4,5-pyridoimidazole (V, X = OH) (X), m. >320°. Heating 2 g. X in 10 ml. POCl3 3 hrs. on a steam bath afforded 1.4 g. 3-methyl-6-chloro-4,5-pyridoimidazole (V, X = Cl) (XI), m. 256° (H2O). When refluxed with hydrazine hydrate 2 g. XI yielded 63% 3-methyl-6-hydrazino-4,5-pyridoimidazole (V, X = NHNH2), m. 220°. Reduction of 2 g. 2,6-dimethyl-3-nitro-4-aminopyridine in 50 ml. hot AcOH with 4 g. Sn led to 1.1 g. 2,6-dimethyl-3,4-diaminopyridine, m. 181° (C6H6); picrate m. 215°.

Although many compounds look similar to this compound(18232-91-2)SDS of cas: 18232-91-2, numerous studies have shown that this compound(SMILES:NC1=C(N)C(C)=CN=C1Cl), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

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.Gao, Xue Lang; Sun, Li Xuan; Wu, Hong Yue; Zhu, Zhao Yu; Xiao, Nan; Chen, Jia Hui; Yang, Qian; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin researched the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ).COA of Formula: C10H24N2.They published the article 《Highly conductive fluorine-based anion exchange membranes with robust alkaline durability》 about this compound( cas:111-18-2 ) in Journal of Materials Chemistry A: Materials for Energy and Sustainability. Keywords: conductive fluorine anion exchange membrane. We’ll tell you more about this compound (cas:111-18-2).

Anion exchange membranes (AEMs) with robust alk. stability and high ionic conductivity are imminently required for the promising electrochem. energy conversion devices – fuel cells. Herein, a series of novel crosslinked AEMs with hydrophobic fluorine-based polymer backbones bearing special functional sites and hydrophilic long flexible multi-cation side chains are prepared Morphol. observation and ion transport anal. confirm the existence of distinct microphase separation and efficient ion-conducting channels within the membranes resulting from the inherent chem. structure. A highest ionic conductivity of 136.27 mS cm-1 can be achieved by TQ-PDBA-70% (IEC = 2.16 meq. g-1) at 80°C. Meanwhile, the prepared TQ-PDBA-X AEMs exhibit a desirable swelling ratio (<10%) and excellent mech. properties (tensile stress > 22.8 MPa). It is worth noting that the retained ionic conductivity of the TQ-PDBA-70% AEM is 98.14%, 95.50%, 77.90%, 72.02% and 58.15% after being immersed in 1, 2, 4, 8 and 10 M KOH at 80°C for 1000 h, resp. Chem. structure change of the TQ-PDBA-70% AEM before and after the alk. stability test is negligible, as revealed by FT-IR. Moreover, TQ-PDBA-70% has high ionic exchange capacity (IEC) retention and maintains good mech. properties. A single cell assembled with TQ-PDBA-70% has a maximum power d. of 158.8 mW cm-2 under a c.d. of 360 mA cm-2. These results suggest that this type of structure opens a new strategy for developing high performance AEMs.

Although many compounds look similar to this compound(111-18-2)COA of Formula: C10H24N2, numerous studies have shown that this compound(SMILES:CN(C)CCCCCCN(C)C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

Synthetic Route of C9H16O2. 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: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Experimental determination of the molar enthalpies of vaporization for some β-diketones.

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

Although many compounds look similar to this compound(18362-64-6)Synthetic Route of C9H16O2, numerous studies have shown that this compound(SMILES:CC(C)C(CC(C(C)C)=O)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

COA of Formula: C9H16O2. 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 Asymmetrically modified Raney nickel catalyst (MRNi). Preparation of highly active new catalyst and its applications. Author is Tai, Akira; Kikukawa, Tadasi; Sugimura, Takasi; Inoue, Yoshihisa; Osawa, Tsutomu.

Tartaric acid-NaBr-modified Raney nickel catalyst was prepared from ultrasonicated Raney nickel catalyst. This catalyst (TA-NaBr-MRNi-U) showed high hydrogenation activity in the enantiodifferentiating hydrogenation of Me acetoacetate and its homologs, acetylacetone, and 2,6-dimethyl-3,5-heptanedione. From the hydrogenation products, optically pure 3-hydroxybutanic acid and its homologs, 2,4-pentanediol, and 2,6-dimethyl-3,5-heptanediol, were obtained in excellent yield.

Although many compounds look similar to this compound(18362-64-6)COA of Formula: C9H16O2, numerous studies have shown that this compound(SMILES:CC(C)C(CC(C(C)C)=O)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
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 Structure of some uranium(IV) chelates in solution, published in 1969, which mentions a compound: 18362-64-6, mainly applied to uranium chelates structure; acetylacetinato uraniums, SDS of cas: 18362-64-6.

N.M.R. spectral data of UL4 [HL = RC(O)CH2C(O)R, where R = Me, Et, iso-Pr, tert-Bu] and UL4-xL1x [x = 1-3, R in HL = tert-Bu, and HL1 = HL (R = Et)] indicate a less sym. structure for the compounds than a D2 sq. antiprism or a D2d triangular dodecahedron.

Compounds in my other articles are similar to this one(2,6-Dimethyl-3,5-heptanedione)SDS of cas: 18362-64-6, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Category: thiazole. 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 A cyclic process on the recovery of copper from metal-sludge by solvent extraction. Author is Koshimura, Hideo; Nagashima, Kiyoyuki; Otani, Hajime.

Cu in sludge was leached with NH3 solution, and the leach solution was extracted with di-isobutyryl methane [18362-64-6] in toluene. The Cu in the organic solvent was stripped with H2SO4, and recovered by electrolysis of the saturated CuSO4 solution The leach solution, the extracting reagent, and H2SO4 were recycled. Recovery of Cu from sludge was 90% and recovery from leach solution was 99%.

Compounds in my other articles are similar to this one(2,6-Dimethyl-3,5-heptanedione)Category: thiazole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

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 Structure and NIR-luminescence of ytterbium(III) beta-diketonate complexes with 5-nitro-1,10-phenanthroline ancillary ligand: assessment of chain length and fluorination impact, published in 2013, which mentions a compound: 18362-64-6, Name is 2,6-Dimethyl-3,5-heptanedione, Molecular C9H16O2, Category: thiazole.

Seven new tris(β-diketonate)ytterbium(III) complexes with the general formula [Yb(β-diketonate)3(5NO2phen)] [the β-diketone is 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione (1), 4,4,4-trifluoro-1-(2-furyl)-1,3-butanedione (2), 1,1,1-trifluoro-2,4-pentanedione (3), 1,1,1-trifluoro-5,5-dimethyl-2,4-hexanedione (4), 1,1,1,5,5,6,6,7,7,7-decafluoro-2,4-heptanedione (5), 2,4-hexanedione (6) or 2,6-dimethyl-3,5-heptanedione (7), and 5NO2phen = 5-nitro-1,10-phenanthroline] were synthesized and characterized by elemental anal., attenuated total reflectance-FTIR and photoluminescence spectroscopy. Single crystal x-ray structures have been determined for three fluorinated complexes (3-5) and ground state geometries of the other four complexes have been predicted using the Sparkle/PM6 model (1-2, 6-7). These exptl. and semi-empirical structures reveal octacoordination around the Yb3+ ion. Photoluminescence studies and lifetime measurements show that the increase in the fluorinated β-diketonate chain length is associated with a decrease in Yb3+ luminescence intensity of the 2F5/2 → 2F7/2 transition at ∼980 nm and the 2F5/2 excited state lifetime, while the ligand lifetime value remains almost unaffected. Finally, fluorination of the ligands is only advised when the complexes are to be used for co-doping with isostructural Er3+ complexes for optical amplifiers, since it leads to a slight decrease in luminescence intensity for the same β-diketonate chain length.

Compounds in my other articles are similar to this one(2,6-Dimethyl-3,5-heptanedione)Category: thiazole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

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.Adelabu, Isaiah Olabisi; Saleh, Tawfik A.; Garrison, Thomas F.; Al Hamouz, Othman Charles S. researched the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ).Related Products of 111-18-2.They published the article 《Synthesis of polyamine-CNT composites for the removal of toxic cadmium metal ions from wastewater》 about this compound( cas:111-18-2 ) in Journal of Molecular Liquids. Keywords: polyamine melamine carbon nanotube cadmium adsorption wastewater treatment. We’ll tell you more about this compound (cas:111-18-2).

This paper investigates the synthesis of melamine-based polyamine polymers covalently bonded to 0.1 wt% multi-walled carbon nanotubes (CNT). The progression in chem. changes to the polymer structure were monitored over time with solid-state 13C NMR. The synthesized polymer composites were characterized using Fourier transform IR spectroscopy, Raman spectroscopy, thermogravimetric anal., and powder X-ray diffraction. Surface morphol. was studied before and after sorption using a scanning electron microscope attached to an energy dispersive X-ray spectroscope. In addition, polymer composites were evaluated for their efficacy in the removal of cadmium (II) ions from aqueous solutions under various controlled conditions including pH, contact time and temperature The efficiency of the polymer/CNT composite demonstrates its potential as new adsorbents for the removal of toxic cadmium (II) ions from aqueous solutions

Compounds in my other articles are similar to this one(N1,N1,N6,N6-Tetramethylhexane-1,6-diamine)Related Products of 111-18-2, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
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 Synthesis of SAPO-56 molecular sieve and its catalytic performance in methanol-to-olefins reaction, published in 2020, which mentions a compound: 111-18-2, mainly applied to SAPO 56 zeolite catalytic methanol olefin, Category: thiazole.

The synthesis of SAPO-56 mol. sieves with different Si contents was carried out by the method of low-high temperature multistep crystallization using N, N, N′, N′-tetramethyl-1, 6-hexanediamine (TMHD) as template. The samples were characterized by X-ray diffraction (XRD), SEM (SEM), N2 adsorption-desorption, NH3 temperature programmed desorption (NH3-TPD) and evaluated their catalytic performances in the conversion of methanol-to-olefins reaction (MTO). The results indicated that the morphol. of the samples changed greatly, especially the sample with the ratio of SiO2/Al2O3 0.4 appeared new sandwich layered structure. And the surface acidity increased with the increase of the ratio of SiO2/Al2O3. Moreover, the selectivity of olefins increased primarily and then decreased. The highest olefins selectivity was appeared when the ratio of SiO2 to Al2O3 was 0.4.

Compounds in my other articles are similar to this one(N1,N1,N6,N6-Tetramethylhexane-1,6-diamine)Category: thiazole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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