Tag: M.W=250-300

Barhoumi, Ali published the artcileTheoretical study of the chemical reactivity of a class of trivalent phosphorus derivatives towards polyhaloalkanes: DFT study, Category: chlorides-buliding-blocks, the publication is Journal of Molecular Modeling (2021), 27(7), 197, database is CAplus and MEDLINE.

Abstract: In the current work, the chem. reactivity of some trivalent phosphorus derivatives R₂PR’ towards polyhaloalkanes CCl₃POR”₂ was studied by the quantum method DFT/B3LYP/6-311G(d,p). The introduction of substituents for the trivalent phosphorus derivative and polyhaloalkane allowed us to have more information on these reactions. On the one hand, the calculation of reactivity indexes derived from the DFT/B3LYP/6-311G(d,p) method and the gap_LUMO-HOMO show that trivalent organophosphorus derivatives behave as nucleophiles, while polyhaloalkanes act as electrophiles. On the other hand, the calculation of the activation barrier and the determination of the free enthalpy variation prove that the kinetic and thermodn. products of these reactions result from the nucleophilic attack of the phosphorus atom on the chlorine halogen. All these theor. predictions are in very good agreement with the exptl. results.

Journal of Molecular Modeling published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Topolski, M. published the artcileChiral carbenoids: their formation and reactions, HPLC of Formula: 866-23-9, the publication is Journal of Organic Chemistry (1993), 58(3), 546-55, database is CAplus.

Carbenoids, generated by metalation or halogen-metal exchange reactions, have been prepared from chiral vinyl and cyclopropyl halides. The reactivity and stereochem. observed in the reaction of these carbenoids has been interpreted as being due to metal-assisted ionization.

Journal of Organic Chemistry published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C7H8BNO4, HPLC of Formula: 866-23-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Shimpi, Nitin A. published the artcileNovel synthetic methodology for the synthesis of dibenzo azepines, Recommanded Product: 2-((4-Chloro-2-nitrophenyl)amino)benzoic acid, the publication is Journal of Chemical and Pharmaceutical Research (2016), 8(4), 318-326, database is CAplus.

New synthetic methodol. for the synthesis of dibenzo[b,e][1,4]diazepines, a key intermediates in the manufacturing of Clozapine which is indicated for use in therapy as dopamine receptor antagonist, Antipsychotic drug. Synthesis of 2-(4-chloro-2-nitrophenylamino) benzoic acid Me ester by simple rearrangement of 2-[[2-(4-chloro-2-nitrophenoxy)acetyl]amino]benzoic acid Me ester. The present work describes a novel, cost-effective and easily scalable process of dibenzo[b,e][1,4]diazepines.

Journal of Chemical and Pharmaceutical Research published new progress about 60091-87-4. 60091-87-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitro Compound,Carboxylic acid,Amine,Benzene, name is 2-((4-Chloro-2-nitrophenyl)amino)benzoic acid, and the molecular formula is C12H15ClO3, Recommanded Product: 2-((4-Chloro-2-nitrophenyl)amino)benzoic acid.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Giordano, Assunta published the artcileVirtual Fragment Screening Identification of a Quinoline-5,8-dicarboxylic Acid Derivative as a Selective JMJD3 Inhibitor, Quality Control of 870778-91-9, the publication is ChemMedChem (2018), 13(12), 1160-1164, database is CAplus and MEDLINE.

The quinoline-5,8 dicarboxylic acid scaffold has been identified by a fragment-based approach as new potential lead compound for the development of JMJD3 inhibitors. Among them, 3-(2,4-dimethoxypyrimidin-5-yl)quinoline-5,8-dicarboxylic acid (compound 3) shows low micromolar inhibitory activity against Jumonji domain-containing protein 3 (JMJD3). The exptl. evaluation of inhibitory activity against seven related isoforms of JMJD3 highlighted an unprecedented selectivity toward the biol. target of interest.

ChemMedChem published new progress about 870778-91-9. 870778-91-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic Acids,Boronic acid and ester,, name is (4-((4-Chlorobenzyl)oxy)phenyl)boronic acid, and the molecular formula is C13H12BClO3, Quality Control of 870778-91-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Ren, Feng published the artcileDiscovery of novel 1,2,4-thiadiazole derivatives as potent, orally active agonists of sphingosine 1-phosphate receptor subtype 1 (S1P₁), Application of 2-(3-Chloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Journal of Medicinal Chemistry (2012), 55(9), 4286-4296, database is CAplus and MEDLINE.

A novel series of 1,2,4-thiadiazole compounds was discovered as selective S1P₁ agonists. The extensive structure-activity relationship studies for these analogs were reported. Among them, I was identified to show high in vitro potency with reasonable free unbound fraction in plasma (F_u > 0.5%), good brain penetration (BBR > 0.5), and desirable pharmacokinetic properties in mouse and rat. Oral administration of 1 mg/kg I resulted in significant peripheral lymphocytes reduction at 4 h after dose and rapid lymphocytes recovery at 24 h. Compound I showed a transient lymphopenia profile in the repeated dose study in mouse. In addition, I also demonstrated efficacy comparable to that of FTY720 (II) in the mouse EAE model of MS.

Journal of Medicinal Chemistry published new progress about 1260023-79-7. 1260023-79-7 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronate Esters,Boronic Acids,Boronic acid and ester,, name is 2-(3-Chloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C15H22BClO3, Application of 2-(3-Chloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Tue Bi, Balo published the artcileElectrochemical preparation of diethyl chloromethyl- and dichloromethylphosphonates, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Tetrahedron Letters (1987), 28(33), 3799-800, database is CAplus.

Electrochem. reduction of (EtO)₂P(O)CCl₃ in alc. acetate solutions at a graphite electrode under galvanostatic conditions gave (EtO)₂P(O)CHCl₂ and (EtO)₂P(O)CH₂Cl in 80% isolated yields.

Tetrahedron Letters published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C8H17Br, Recommanded Product: Diethyltrichloromethylphosphonate.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Cui, Y. published the artcileSynthesis of novel oxazolidinone derivatives for antibacterial investigation, Application of 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic acid, the publication is Current Science (2005), 89(3), 531-534, database is CAplus.

A series of oxazolidinones were synthesized and evaluated as antibacterial agents. They were screened in vitro against a panel of Gram-pos. organisms. Compound I was found to exhibit activity comparable to linezolid.

Current Science published new progress about 3919-74-2. 3919-74-2 belongs to chlorides-buliding-blocks, auxiliary class Isoxazole,Fluoride,Chloride,Carboxylic acid,Benzene, name is 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic acid, and the molecular formula is C11H7ClFNO3, Application of 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic acid.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Buendia, Julien published the artcileTandem catalytic C(sp³)-H amination/sila-Sonogashira-Hagihara coupling reactions with iodine reagents, HPLC of Formula: 866-23-9, the publication is Angewandte Chemie, International Edition (2015), 54(19), 5697-5701, database is CAplus and MEDLINE.

A new tandem C-N and C-C bond-forming reaction has been achieved through Rh^II/Pd⁰ catalysis. The sequence combines a catalytic C(sp³)-H nitrene insertion with a palladium-catalyzed C-C cross-coupling to afford complex nitrogenous mols., e.g., I, with very good yields and complete stereoselectivity. The sequence first involves an iodine(III) oxidant, then the in situ generated iodine(I) byproduct is used as a coupling partner. The synthetic value of iodoarenes produced in trivalent iodine reagent mediated oxidations has been demonstrated.

Angewandte Chemie, International Edition published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, HPLC of Formula: 866-23-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Church, J. S. published the artcileLanasol dyes and wool fibers. Part II: Model studies on the mechanism of dye fixation in an aqueous system, Synthetic Route of 18791-02-1, the publication is Dyes and Pigments (1998), 39(4), 313-333, database is CAplus.

The mechanism of the fixation of Lanasol dyes to the various amino acid side chain sites within wool protein was investigated using model compounds in a mixed solvent system. As the dyeing of wool is generally carried out in an aqueous system at the boil it was felt that the model system would be more accurate if the compounds studied were water soluble The synthesis of the sulfonated version of the model reactive dye compound used in Part I and its subsequent reaction with model wool compds is reported. In addition, a model compound based on benzenesulfonic acid, and an actual com. Lanasol dye were also reacted. The reaction products were isolated by chromatog. and then characterized by proton and carbon-13 NMR, and electrospray mass spectroscopy. In general the results were consistent with those obtained from the study carried out in the acetone/water solvent system. The dibromo form of the dye reactive group is only converted to the monobromo form in the presence of model wool compounds and both forms react with model wool compounds to yield the same products. Amines reacted with the model dyes to form a product containing an aziridine ring, but no evidence for the proposed reaction of this ring with a second nucleophilic wool site to form a crosslink between 2 protein chain segments could be detected. In the few cases where an aziridine ring structure was not formed, the products obtained were found to support a Michael addition (1,4-addition) reaction mechanism. Unlike the results found for the mixed solvent system, the wool models for N-terminal groups did not react with the model dye compounds

Dyes and Pigments published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, Synthetic Route of 18791-02-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

De Paulis, Tomas published the artcileSynthesis of [³H]clozapine, Application In Synthesis of 60091-87-4, the publication is Journal of Labelled Compounds and Radiopharmaceuticals (1988), 25(9), 1027-33, database is CAplus.

[³H]clozapine was prepared with a specific activity of 9.9 Ci/mmol by reaction of 8-chloro-11-(methylthio)-5H-dibenzo[b,e][1,4]diazepine with an excess of [³H]N-methylpiperazine. The latter was prepared from N-methylpyrazinium bromide in ethanolic HCl by reduction at room temperature with tritium over 5% Rh on Al₂O₃.

Journal of Labelled Compounds and Radiopharmaceuticals published new progress about 60091-87-4. 60091-87-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitro Compound,Carboxylic acid,Amine,Benzene, name is 2-((4-Chloro-2-nitrophenyl)amino)benzoic acid, and the molecular formula is C13H9ClN2O4, Application In Synthesis of 60091-87-4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics