Tag: M.W=150-200

Acikses, Aslisah; Comez, Necmittin; Biryan, Fatih published the artcile< Metal complexes of a homopolymer system containing diethanolamine side group: synthesis and dielectrical behaviors>, Electric Literature of 1592-20-7, the main research area is diethanolamine side group homopolymer metal complex preparation dielec property.

In this work, 4-diethanolaminomethyl styrene (DEAMSt) monomer was prepared by modification of 4-chloromethyl styrene with diethanolamine. The homopolymerization of modificated styrene was carried out by free radical polymerization method at 60 °C in presence of 1,4-dioxane and AIBN. The metal complexes were prepared by reaction of the homopolymer used as ligand P(DEAMSt)L1 and Ni(II), Co(II) metal ions in presence of ethanol and dilute NaOH at 65 °C for 48 h in pH 6. The structure of modificated monomer, homopolymer used as ligand and polymer-metal complexes were characterized by FT-IR, 1H-NMR, 13C-NMR, Raman spectroscopy techniques, elemental anal., SEM, XRD and magnetic measurements. Their geometric structures according to magnetic measurements of Co(II) and Ni(II) complexes were estimated that have a tetrahedral structure. P(DEAMSt)L1 polymer has a transition state between amorphous and crystalline, whereas metal complexes (Co(II) and Ni(II) are with a large crystal structure. The mol. weight of P(DEAMSt)L1 homopolymer was determined by gel permeation chromatog. The glass transition temperature (Tg) of homopolymer was measured by differential scanning calorimeter. The thermal behaviors of both ligand and polymer-metal complexes were investigated by thermogravimetric anal. and DTA. The results obtained were compared with each other. Then, the dielec. measurements (dielec. constant, dielec. loss and conductivity) of the ligand and polymer-metal complexes were investigated as a function of temperature and frequency. The activation energies (Ea) of the ligand and metal complexes were determined from the conductivity measurements.

Journal of Macromolecular Science, Part A: Pure and Applied Chemistry published new progress about Activation energy. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Electric Literature of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Novotna, Vladimira; Stulov, Sergey; Hamplova, Vera; Cigl, Martin; Pacherova, Oliva published the artcile< New smectogens with (S)-2-methylbutyl lactate group in the terminal chain and chlorine-substituted molecular core>, Synthetic Route of 3964-57-6, the main research area is methylbutyl lactate group preparation.

Authors report the synthesis and mesomorphic properties of new chiral materials based on (S)-2-methylbutyl lactate group in the chiral chains and a lateral substitution by a chlorine atom in the mol. core. Authors have studied mesomorphic properties and found that homologues with only one lactate and methylbutyl in the chain exhibit the SmC* phase in a broad temperature range. Authors established the spontaneous polarisation and tilt angle values. The pitch values are rather small, being within the range 360-450 nm. On the other hand, a homolog with one addnl. lactate in the chiral part does not exhibit the mesomorphic properties. Authors have tried to establish the effect of lateral substitution by comparing all studied compounds with previously prepared (S)-2-methylbutyl lactate derivatives with non-substituted mol. core.

Liquid Crystals published new progress about Ferroelectricity. 3964-57-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, Synthetic Route of 3964-57-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Yin, Jinya; Rainier, Jon D. published the artcile< The one-pot synthesis of amidonaphthoquinones from aminonaphthoquinones>, Name: (E)-Cinnamoyl chloride, the main research area is amidonaphthoquinone preparation; aminonaphthoquinone acid chloride tandem hydrogenation coupling oxidation; amidoquinone; reduction; synthesis; tandem reaction.

One-pot method of synthesizing amidonaphthoquinones I [R = Ph, C(Me)=CH2, CH=CHMe, etc.; R1 = H, OMe, Cl] from the corresponding aminonaphthoquinones was described. The scope of amides that could be synthesized using this methodol. was relatively broad and the yield of product was higher than traditional methods of synthesizing these substrates.

Tetrahedron Letters published new progress about Acid chlorides Role: RCT (Reactant), RACT (Reactant or Reagent). 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Name: (E)-Cinnamoyl chloride.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Liger, Francois; Cadarossanesaib, Florence; Iecker, Thibaut; Tourvieille, Christian; Le Bars, Didier; Billard, Thierry published the artcile< 11C-Labeling: Intracyclic Incorporation of Carbon-11 into Heterocycles>, COA of Formula: C8H12N2O2, the main research area is carbon labeling intracyclic heterocycle cyclization.

Labeling of heterocycles with carbon-11 is generally performed through peripheral functionalizations and more scarcely inside heterocyclic core. Such less common approach usually requires preliminary multi-step synthesis of reactive species. Herein, a cyclization reaction by direct use of cyclotron-produced [11C]CO2 is described to obtain various heterocycles intracyclically labeled in only 10 min.

European Journal of Organic Chemistry published new progress about Cyclization. 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, COA of Formula: C8H12N2O2.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Mecca, Tommaso; Ussia, Martina; Caretti, Daniele; Cunsolo, Francesca; Dattilo, Sandro; Scurti, Stefano; Privitera, Vittorio; Carroccio, Sabrina C. published the artcile< N-methyl-D-glucamine based cryogels as reusable sponges to enhance heavy metals removal from water>, Application In Synthesis of 1592-20-7, the main research area is methyl glucamine based cryogel adsorption heavy metal removal reusable.

The design of novel cryogels containing N-methyl-D-glucamine (NMG) group was herein reported. The macroporous materials were prepared via sustainable and feasible cryopolymn. by using as co-monomers (4-vinyl-benzyl)-N-methyl-D-glucamine (VbNMG) and 2-hydroxyethyl methacrylate (HEMA) at different percentages. Particularly, cryogel containing 100% of VbNMG (VbNMG-100) showed excellent ability in fast water uptake, removing arsenic (V) and chromium (VI) metal ions from it. Reusability up to six cycles was also demonstrated. The as-prepared materials were characterized by spectroscopic, thermal, and morphol. analyses. The effect of initial oxyanions concentration, kinetic profiles, interfering anions (phosphate and sulfate) were investigated and adsorption/desorption studies were carried out. Equilibrium sorption results well fitted the Langmuir isotherm for both ions tested, showing a startling aptitude in arsenic (76.3 mg/g) as well as chromium (130.9 mg/g) sorption properties if compared with similar polymers as well as other materials. Exploiting its spongy nature, only 5 mins were needed to absorb contaminated medium releasing purified water by a simple squeezing. Most importantly, the sponge can be easily regenerated and reused again up to three times without the depletion of its efficiency.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Adsorbents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Nurkenov, O. A.; Nurmaganbetov, Zh. S.; Seilkhanov, T. M.; Fazylov, S. D.; Satpayeva, Zh. B.; Turdybekov, K. M.; Talipov, S. A.; Seydakhmetova, R. B. published the artcile< Synthesis, Structure, and Biological Activity of Cinnamoyl-Containing Cytisine and Anabasine Alkaloids Derivatives>, Synthetic Route of 17082-09-6, the main research area is cytisine cinnamoyl derivative preparation antibacterial antifungal cytotoxic activity; anabasine cinnamoyl derivative preparation antibacterial antifungal activity cytotoxic.

The reactions of the cytisine and anabasine alkaloids with cinnamic acid chloride have been studied, and hydrazinolysis of the resulting N-cinnamoylcytisine and N-cinnamoylanabazine has been carried out. The reaction of cinnamoyl isothiocyanate with alkaloids has afforded the corresponding thiourea derivatives Antimicrobial and cytotoxic activity of cinnamoyl-containing derivatives of these alkaloids has been evaluated.

Russian Journal of General Chemistry published new progress about Alkaloids Role: ADV (Adverse Effect, Including Toxicity), PAC (Pharmacological Activity), PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), THU (Therapeutic Use), BIOL (Biological Study), RACT (Reactant or Reagent), PREP (Preparation), USES (Uses). 17082-09-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H7ClO, Synthetic Route of 17082-09-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Terasaki, Masanori; Kamata, Ryo; Shiraishi, Fujio; Makino, Masakazu published the artcile< Evaluation of estrogenic activity of parabens and their chlorinated derivatives by using the yeast two-hybrid assay and the enzyme-linked immunosorbent assay>, Application In Synthesis of 3964-57-6, the main research area is estrogenicity chlorinated paraben derivative estrogen receptor.

We assessed the estrogen agonist activities of 21 parabens and their chlorinated derivatives by using yeast two-hybrid assays incorporating either the human or medaka (Oryzias latipes) estrogen receptor α (hERα and medERα, resp.), and by using hERα competitive ELISA (ER-ELISA). In the two-hybrid assay with hERα, five parabens and three chlorinated derivatives exhibited estrogenic activity, and their relative activity (17β-estradiol [E2] = 1) ranged from 2.0 × 10-5 to 2.0 × 10-4, with the highest activity observed in i-butylparaben. In the medERα assay, six parabens and six chlorinated derivatives exhibited estrogenic activity and their relative activity ranged from 2.7 × 10-5 to 3.5 × 10-3, with the highest activity observed in benzylparaben, its monochlorinated derivative, i-butylparaben, and n-butylparaben. Although medERα demonstrated an activity to E2 that was three times lower than that demonstrated by hERα, medERα has a higher sensitivity to parabens than hERα (1.3-8.9 times). Five parabens and two chlorinated derivatives exhibited a binding affinity to ERα in the ER-ELISA; of the parabens, i-butylparaben exhibited the strongest binding affinity. The yeast two-hybrid assay and the ER-ELISA also revealed that many of the assayed chlorinated parabens were much weaker than the parent compound In addition, the results mainly showed that parabens with a bulk substituent (e.g., i-Bu and benzyl groups) had a higher activity than those with a sterically small substituent. It is considered that derivatization masks the apparent estrogenic activity of parabens, but the resulting chlorinated compounds may represent a potential hazard and therefore other toxicity tests should be performed to determine the toxicity of the chlorinated derivatives

Environmental Toxicology and Chemistry published new progress about Estrogen receptor α Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 3964-57-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H7ClO3, Application In Synthesis of 3964-57-6.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Boivin, Louis-Philippe; Dupont, William; Leclerc, Mario; Gendron, David published the artcile< Biosourced vanillin-based building blocks for organic electronic materials>, Recommanded Product: 4,5-Dimethoxybenzene-1,2-diamine, the main research area is benzo fused heterocycle preparation.

The preparation of compounds having a benzothiophene, indole, isatin, benzofuroxan, benzofurazan, benzothiadiazole, and phthalimide heteroaromatic ring structures were reported. More precisely, the results showed that vanillin can be used as a biosourced starting material for the preparation of a variety of aromatic dibrominated monomers. X-ray crystallog. on single crystals was also performed to obtain meaningful information on their solid-state ordering. This work opens the way to new sustainable, biosourced aromatic materials (small mols. or polymers) for organic electronics.

Journal of Organic Chemistry published new progress about Benzaldehydes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 27841-33-4 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H12N2O2, Recommanded Product: 4,5-Dimethoxybenzene-1,2-diamine.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chen, Zhichao; Huang, Di; Hwang, Jiann-Yang published the artcile< Effect of styrene addition on chemically induced grafting of 4-vinylbenzyl chloride onto low-density polyethylene for anion exchange membrane preparation>, Application In Synthesis of 1592-20-7, the main research area is styrene vinylbenzyl chloride polyethylene anion exchange membrane.

Anion exchange membranes were prepared from graft polymerization of 4-vinylbenzyl chloride on low-d. polyethylene matrix and subsequent amination with trimethylamine solution The graft polymerization was initiated by benzoyl peroxide instead of gamma ray radiation. The resulting membranes had insufficient anion exchange functional groups; however, this could be enhanced by adding 10% styrene to 4-vinylbenzyl chloride in a graft polymerization reaction. Further addition of styrene resulted in a decrease of the ion exchange capacity of anion exchange membranes due to competition with 4-vinylbenzyl chloride in graft polymerization onto polyethylene. These were evidenced by anal. titration, elemental anal., IR spectroscopy and 1H NMR. © 2019 Society of Chem. Industry.

Polymer International published new progress about Anion exchange membranes. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Application In Synthesis of 1592-20-7.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Julia, Marc; Julia, Sylvestre; Bemont, Bernard published the artcile< Cyclopropane acids>, HPLC of Formula: 90940-40-2, the main research area is .

γ-Chloroesters, easily prepared from γ-lactones, were cyclized to cyclopropanecarboxylic esters in good yield by strong bases. Substituted derivatives had the trans configuration, presumably owing to isomerization (during the reaction) of any cis isomer present. BzCH2CH2CO2H (178 g.) in 200 ml. warm 20% NaOH was reduced with 30 g. KBH4 (added in small portions) to give 90% PhCH.CH2.CH2.C(O).O (I). The same procedure also gave the p-MeO, p-Cl (m. 50°), p-Me, and p-Br (m. 83°) derivatives of I, and BzCMe2CH2CO2H (II) and BzCH2CMe2CO2H gave the corresponding lactones, m. 56-7° (III), and 48°, resp. The chloroesters were prepared by two methods. A: a solution of 10 g. I in 58 cc. EtOH was saturated with dry HCl, kept 48 hrs., evaporated, poured onto ice, and the mixture saturated with NaCl, extracted with Et2O, and distilled to give 66% PhCHClCH2CH2CO2Et (IV), b0.1 115°, decomposed on repeated distillation B: 216 g. SOCl2 was added to 96 g. I in 144 g. C6H6, the mixture boiled 3 hrs., cooled, and slowly added to 480 cc. alc. HCl; removal of solvent and distillation gave 97% IV. The following substituted Et 4-chlorobutyrates were prepared similarly [substituents, b.p. (mm.), method, and % yield given): 4-Me, 78° (10), A, 55, B, 89; 4,4-di-Me, -, B, used without purification; 4-(p-MeOC6H4), – (not distilled), A, 96 (B failed); 4-(p-ClC6H4), 125-6° (0.05), A, 75, B, 95; 4-(p-MeC6H4), 108-10° (0.05), A, 87, B, 82; 4-(p-BrC6H4), 128-9° (0.05), A, 91, B, 90; 4,3,3-PhMe2, 145° (5), B, 60. To 15 g. IV was added 40 cc. 1.7N tert-AmONa in C6H6. The solution warmed, became red, and a precipitate formed. After 30 hrs., the mixture was boiled 5 hrs., cooled, quenched in H2O, extracted with Et2O and distilled, b0.2 101-40°. The distillate was shaken with 2.8% aqueous KMnO4 to a permanent color, the MnO2 removed and washed with H2O and Et2O, and the combined extracts distilled to give 77% trans-PhCH.CH2.CHCO2Et (V), b0.2 105-6°, m. 38-9°, hydrolyzed by KOH-MeOH to the trans-acid (VI), m. 90°, whose anilide (VII) m. 145°. IV was also cyclized by NaNH2 in liquid NH3 (67% yield), MeONa in MeOH (45% yield of VI), PhCMe2ONa in C6H6 (61% VI), tert-BuOK in tert-BuOH (64% VI), PhCMe2OK in PhCMe2OH at 100° (64% VI), and alc. NaOEt (58% VI). The cis isomer of VI (Burger, CA 42, 6755f) was esterified with CH2N2, the ester boiled 4 hrs. with tert-AmONa in C6H6 and hydrolyzed to give 73% VI. Similarly, tert-BuONa and EtONa gave 47 and 20% VI, resp. The anilide of cis-VI (VIII) m. 146-7°; a mixture of VII and VIII m. 120°. The following Et cyclopropanecarboxylates and derivatives were prepared similarly [substituents, b.p. (mm.), cyclizing agent, and % yield given]: none, 95-7° (330) (n22D 1.4242), tert-AmONa, 45 (PhCMe2ONa, 47) (acid b26 89-90%, n20D 1.4391; S-benzylthiuronium salt m. 151°); 2-Me, 65-70° (14), tert-AmONa, 50 (acid b10 92°, n21D 1.4384; anilide m. 110°); 2,2-Me2, 90° (15) (n19D 1.4280), tert-AmONa, 50 (acid b143 140°, n20D 1.4390; amide m. 172-3°); 2-(p-MeOC6H4), 124-6° (0.05) (m. 78-9°), tert-AmONa, 84 (acid m. 112-13°; anilide m. 171°); 2-(p-MeC6H4), 108° (0.6) (m. 28°), tert-AmONa, 61 (acid m. 119°; anilide m. 161°); 2-(p-BrC6H4), 130° (0.8) (m. 32°), tert-AmONa (acid m. 122°; anilide m. 175°); 2,3,3-PhMe2 (IX), 110-20° (5) (n19D 1.5040), by cyclizing the chloroester from III with NaCPh3, 10.3 (acid m. 100-1°) [also prepared (18%) from Me2C.CHPh.CH2.C(O).O (X) with SOCl2 and then tert-AmONa]. To 4.5 g. V in 120 cc. Et2O, 1 g. LiAlH4 was added in small portions with cooling, the mixture kept 4 hrs., boiled 12 hrs., and hydrolyzed (first with moist Et2O and then with H2O added dropwise); extraction, alk. hydrolysis of unchanged V, further extraction, and distillation gave 66% trans-PhCH.CH2.CHCH2OH, b3 125°, n25D 1.5412; phenylurethan m. 88-9°; 3,5-dinitrobenzoate m. 126-7°. Similarly, IX (cis-trans mixture) was reduced to the carbinol isomer mixture, b0.05 101-2°, n17D 1.5316; phenylurethan m. 122°; 3,5-dinitrobenzoate m. 114°. In an attempt to prepare II, PhCOCBrMe2 and NaCH(CO2Et)2 in boiling alc. gave (instead of II) 92% PhCOCMe:CH2, b0.5 85-90°; 2,4-dinitrophenylhydrazone m. 228°; semicarbazone m. 186-7°. The same reagents in HCONMe2 heated 3 hrs. at 100° and the product distilled and crystallized from Et2O-petr. ether gave 61% PhC:C(CO2Et).CO2.CMe2 (XI), b0.25 147-9°, m. 75-6°, λ 270 mμ (log ε 3.78), and from the mother liquors 3% PhC:C(CO2H).CO2.CMe2 (XII), m. 165° (also obtained from XI and KOH-MeOH), and a trace of II, m. 85°. XII (5 g.) in 50 cc. alc. was reduced with 0.5 g. 10% Pd-C and 16 kg./sq. cm. H, and the saturated lactone-acid decarboxylated at 120° in vacuo and distilled to give 68% X, b0.5 140°, m. 93-4°.

Bulletin de la Societe Chimique de France published new progress about UV and visible spectra. 90940-40-2 belongs to class chlorides-buliding-blocks, and the molecular formula is C10H9ClO2, HPLC of Formula: 90940-40-2.

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics