Category: chlorides-buliding-blocks

Wodtke, Robert published the artcileSynthesis and kinetic characterization of water-soluble fluorogenic acyl donors for transglutaminase 2, Application of 2-Chlorotrityl chloride, the publication is ChemBioChem (2016), 17(13), 1263-1281, database is CAplus and MEDLINE.

Small Glu-containing peptides bearing coumarin derivatives as fluorescent leaving groups attached to the γ-carboxylic acid group of the Glu residue were synthesized and investigated with regard to their potential to act as substrates for transglutaminase 2 (TGase 2). Their synthesis was accomplished by an efficient solid-phase approach. The excellent water solubility of the compounds enabled their extensive kinetic characterization in the context of TGase 2-catalyzed hydrolysis and aminolysis. The influence of the coumarin skeleton’s substitution pattern on the kinetic properties was studied. Derivatives containing 7-hydroxy-4-methylcoumarin (HMC) revealed properties superior to those of their 7-hydroxycoumarin counterparts; analogous amides were not accepted as substrates. Z-Glu(HMC)-Gly-OH, which exhibited the best substrate properties out of the investigated derivatives, was selected for representative kinetic characterization of acyl acceptor substrates and irreversible inhibitors.

ChemBioChem published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C7H13BrSi, Application of 2-Chlorotrityl chloride.

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

Kamenova-Nacheva, Mariana published the artcileSynthesis of ferrocenylmethylidene and arylidene substituted camphane based compounds as potential anticancer agents, HPLC of Formula: 21286-54-4, the publication is New Journal of Chemistry (2017), 41(17), 9103-9112, database is CAplus.

Herein is described the synthesis of (+)-camphor derivatives containing sulfonamide groups, ferrocenylmethylidene or arylidene moieties. The obtained derivatives were tested against seven human cancer cells lines, namely BV-173, K-256a, NB-4, A549, H1299, MCF-7, and MDA-MB231, and two normal human cell lines, HEK293 and HUVEC, to determine their activity against malignant cells. Some of them exhibit IC₅₀ values below 10 μM in at least one of the cancer cell lines. Ferrocenylmethylidene ketone 16 (1-((1S,4S)-3-((E)-ferrocenylmethylidene)-7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)-N-(tert-butyl)methanesulfonamide) can be outlined as the most potent and selective in the current study (IC₅₀ for cancer cells – up to 4.0 μM; IC₅₀ for HEK293 and HUVEC – 68 and 69 μM, resp.). There is a clear trend showing that the presence of a conjugated ferrocenylmethylidene group is essential for the cytotoxicity, however different sulfonamide substituents and derivatization of the carbonyl group can modify the activity. Thus, this class of compounds could have good prospects for further structural optimization.

New Journal of Chemistry published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, HPLC of Formula: 21286-54-4.

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

Jones, Richard T. published the artcileChromatography of human hemoglobin. Factors influencing chromatography and differentiation of similar hemoglobins, Related Products of chlorides-buliding-blocks, the publication is Journal of Chromatography (1963), 421-31, database is CAplus and MEDLINE.

The method of Allen, et al. (CA 52, 10344d) and its modifications for hemoglobin (I) determination are reviewed. The methods are affected by temperature, pH, and ionic concentration of developers, state of equilibrium of the Amberlite IRC-50, amount of I, and oxidation state of the heme in the I applied. By the use of a radioactive tracer technique, differences in the chromatographic behavior of I S and I D and of the ferrihemoglobin cyanide and oxyhemoglobin forms of I F were demonstrated.

Journal of Chromatography published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Related Products of chlorides-buliding-blocks.

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

Markushyna, Yevheniia published the artcileChromoselective Synthesis of Sulfonyl Chlorides and Sulfonamides with Potassium Poly(heptazine imide) Photocatalyst, Quality Control of 939-99-1, the publication is Angewandte Chemie, International Edition (2021), 60(37), 20543-20550, database is CAplus and MEDLINE.

Among external stimuli used to promote a chem. reaction, photocatalysis possesses a unique one-light. Photons are traceless reagents that provide an exclusive opportunity to alter chemoselectivity of the photocatalytic reaction varying the color of incident light. This strategy may be implemented by using a sensitizer capable to activate a specific reaction pathway depending on the excitation light. Herein, we use potassium poly(heptazine imide) (K-PHI), a type of carbon nitride, to generate selectively three different products from S-arylthioacetates simply varying the excitation light and otherwise identical conditions. Namely, arylchlorides are produced under UV/purple, sulfonyl chlorides with blue/white, and diaryl disulfides at green to red light (e.g., S-Ph thioacetate → benzenesulfonyl chloride (93%) under blue light irradiation using HCl in water/MeCN and O₂ as electron acceptor). A combination of the neg. charged polyanion, highly pos. potential of the valence band, presence of intraband states, ability to sensitize singlet oxygen, and multi-electron transfer is shown to enable this chromoselective conversion of thioacetates.

Angewandte Chemie, International Edition published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, Quality Control of 939-99-1.

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

Bazzi, Sakna published the artcileElectrogenerated Sm(II)-Catalyzed CO₂ Activation for Carboxylation of Benzyl Halides, Quality Control of 939-99-1, the publication is Organic Letters (2019), 21(24), 10033-10037, database is CAplus and MEDLINE.

Sm(II)-catalyzed carboxylation of benzyl halides is reported through the electrochem. reduction of CO₂. The transformation proceeds under mild reaction conditions to afford the corresponding phenylacetic acids in good to excellent yields. This user-friendly and operationally simple protocol represents an alternative to traditional strategies, which usually proceeds through the C(sp³)-halide activation pathway.

Organic Letters published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, Quality Control of 939-99-1.

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

Rehder, Dieter published the artcileWater and bromide in the active center of vanadate-dependent haloperoxidases, HPLC of Formula: 19652-33-6, the publication is Journal of Inorganic Biochemistry (2000), 80(1-2), 115-121, database is CAplus and MEDLINE.

Two aqua-oxovanadium complexes, viz. [A-VO(H₂O)(sal-L-Leu)] (I) and [VO(H₂O)₂(5-Br-sal-Gly)]·H₂O(II·H₂O ), containing the water ligands in cis- and trans-positions to the oxo group at V-OH₂ distances ranging from 2.008 to 2.228 Å, have been structurally characterized in order to model the apical electron d. feature found in the structures of fungal and algal vanadate-dependent peroxidases. Br K-edge XAS of bromide-treated bromoperoxidase from Ascophyllum nodosum and model compounds (including II·H₂O) has been used to show that the substrate bromide does not bind to active site vanadium but to a light atom, possibly carbon, in its vicinity.

Journal of Inorganic Biochemistry published new progress about 19652-33-6. 19652-33-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Benzene,Phenol,Aldehyde, name is 5-Bromo-3-chloro-2-hydroxybenzaldehyde, and the molecular formula is C7H4BrClO2, HPLC of Formula: 19652-33-6.

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

Haga, Yuji published the artcileDiscovery of trans-N-[1-(2-fluorophenyl)-3-pyrazolyl]-3-oxospiro[6-azaisobenzofuran-1(3H),1′-cyclohexane]-4′-carboxamide, a potent and orally active neuropeptide Y Y5 receptor antagonist, Synthetic Route of 6313-54-8, the publication is Bioorganic & Medicinal Chemistry (2009), 17(19), 6971-6982, database is CAplus and MEDLINE.

A series of trans-3-oxospiro[(aza)isobenzofuran-1(3H),1′-cyclohexane]-4′-carboxamide derivatives were synthesized to identify potent NPY Y5 receptor antagonists. Of the compounds, 21j (I)showed high Y5 binding affinity, metabolic stability and brain and cerebrospinal fluid (CSF) penetration, and low susceptibility to P-glycoprotein transporters. Oral administration of 21j significantly inhibited the Y5 agonist-induced food intake in rats with a min. ED of 1 mg/kg. This compound was selected for proof-of-concept studies in human clin. trials.

Bioorganic & Medicinal Chemistry published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C6H4ClNO2, Synthetic Route of 6313-54-8.

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

Ichikawa, Junji published the artcileHeck-type 5-endo–trig cyclizations promoted by vinylic fluorines: Ring-fluorinated indene and 3H-pyrrole syntheses from 1,1-difluoro 1-alkenes, Synthetic Route of 866-23-9, the publication is Journal of Fluorine Chemistry (2006), 127(4-5), 489-504, database is CAplus.

Arylpalladium or aminopalladium species bearing a 2,2-difluorovinyl group undergo an unusual 5-endo alkene insertion followed by β-fluorine elimination. These processes provide a facile access to ring-fluorinated 5-membered carbocyclic and heterocyclic compounds starting from an 2-(3,3-difluoroallyl)phenyl trifluoromethanesulfonate and 3,3-difluoroallyl ketone O-pentafluorobenzoyl oximes. In both systems, the two vinylic F atoms are essential for Heck-type 5-endo–trig cyclizations. The crystal structure of F₂C:CHCMe₂CPh:NOH is presented [monoclinic, space group P2₁/c, a 7.5652(18), b 6.3060(15), c 23.707(6) Å, V 1121.4(5) ų, Z 4].

Journal of Fluorine 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 C5H10Cl3O3P, Synthetic Route of 866-23-9.

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

Dong, Bin published the artcileCation Modules as Building Blocks Forming Supramolecular Assemblies with Planar Receptor-Anion Complexes, Application In Synthesis of 23616-79-7, the publication is Journal of the American Chemical Society (2013), 135(4), 1284-1287, database is CAplus and MEDLINE.

Ion-based materials were fabricated through ion pairing of planar receptor-anion complexes and cation modules as neg. and pos. charged building blocks, resp. Anion receptors that could not form soft materials by themselves provided mesophases upon anion binding and subsequent ion pairing with aliphatic cation modules. The mesogenic behaviors were affected by structural modification of both the cation module and the anion receptor. Synchrotron x-ray diffraction measurements suggested the formation of columnar mesophases with contributions from charge-by-charge and charge-segregated arrangements. Flash-photolysis time-resolved microwave conductivity measurements further revealed a higher charge-carrier mobility in the assembly with a large contribution from the charge-segregated arrangement than in the charge-by-charge-based assembly.

Journal of the American Chemical Society published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, Application In Synthesis of 23616-79-7.

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

Bahrami, Kiumars published the artcile[BTBA]Cl-FeCl₃ as an Efficient Lewis Acid Ionic Liquid for the Synthesis of Perimidine Derivatives, HPLC of Formula: 23616-79-7, the publication is Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry (2016), 46(6), 852-856, database is CAplus.

An effective synthesis of various biol. important 2,3-dihydroperimidines from reaction of aldehydes and naphthalene-1,8-diamine was developed using [BTBA]Cl-FeCl₃ as an efficient Lewis acid ionic liquid This method was a very simple and high yielding reaction for the preparation of the titled compounds Different functional groups were tolerated under this reaction conditions including ether, phenol, amine, and alkene.

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, HPLC of Formula: 23616-79-7.

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