Month: December 2022

Herder, Martin published the artcileImproving the Fatigue Resistance of Diarylethene Switches, Application In Synthesis of 219537-97-0, the publication is Journal of the American Chemical Society (2015), 137(7), 2738-2747, database is CAplus and MEDLINE.

When applying photochromic switches as functional units in light-responsive materials or devices, an often disregarded yet crucial property is their resistance to fatigue during photoisomerization. In the large family of diarylethene photoswitches, formation of an annulated isomer as a byproduct of the photochromic reaction turns out to prevent the desired high reversibility for many different derivatives To overcome this general problem, we have synthesized and thoroughly investigated the fatigue behavior of a series of diarylethenes, varying the nature of the hetaryl moieties, the bridging units, and the substituents. By anal. of photokinetic data, a quantification of the tendency for byproduct formation in terms of quantum yields could be achieved, and a strong dependency on the electronic properties of the substituents was observed In particular, substitution with 3,5-bis(trifluoromethyl)phenyl or 3,5-bis(pentafluorosulfanyl)phenyl groups strongly suppresses the byproduct formation and opens up a general strategy to construct highly fatigue-resistant diarylethene photochromic systems with a large structural flexibility.

Journal of the American Chemical Society published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Application In Synthesis of 219537-97-0.

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

Krymov, Stepan K. published the artcileSynthesis, biological evaluation, and in silico studies of potential activators of apoptosis and carbonic anhydrase inhibitors on isatin-5-sulfonamide scaffold, Product Details of C8H6ClF3, the publication is European Journal of Medicinal Chemistry (2022), 113997, database is CAplus and MEDLINE.

Carbonic anhydrase IX is a promising target for the search for new antitumor compounds with improved properties. Using the mol. hybridization approach, on the basis of structures of a selective carbonic anhydrase IX inhibitor 3 and an activator of apoptosis 2 (1), a series of 1-substituted isatin-5-sulfonamides I [R = benzyl, 2-fluorobenzyl, 3-fluorobenzyl, etc.] were designed and synthesized. The study of the inhibitory activity of isatin-5-sulfonamides showed the ability to inhibit I, II, IX, XII isoforms at nano- and micromolar concentrations Docking of compounds 1-(3,5-Difluorobenzyl)-2,3-dioxoindoline-5-sulfonamide and 1-(2,4-Dichlorobenzyl)-2,3-dioxoindoline-5-sulfonamide into the active site of II and IX carbonic anhydrase isoforms showed the coordination of sulfonamidate anions with zinc cations, as well as a number of addnl. hydrophobic interactions. The trifluoromethylthio derivative2,3-Dioxo-1-(4-((trifluoromethyl)thio)benzyl)indoline-5-sulfonamide suppressed the growth of tumor cells at low micromolar concentrations, maintaining activity on resistant lines and under hypoxic conditions. Immunoblotting of MCF7 cells treated with the 2,3-Dioxo-1-(4-((trifluoromethyl)thio)benzyl)indoline-5-sulfonamide revealed its antiestrogenic activity and ability to activate apoptosis in tumor cells.

European Journal of Medicinal Chemistry 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, Product Details of C8H6ClF3.

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

Dice, John R. published the artcileα,β-Diphenyl-α-trifluoromethyl-2-pyridineethanol and related compounds as synthetic estrogens, Formula: C8H4ClF3O, the publication is Journal of Medicinal Chemistry (1966), 9(2), 176-8, database is CAplus and MEDLINE.

A series of substituted α,β-diphenyl-α-trifluoromethyl-β-(2-pyridine)ethanols (I), where R¹ is H, Cl, or OMe, and R² is H, Cl, Me, Ph, or OMe, and II, where R¹ is H or Me, R² is CF₃ or C₂F₅ and R³ is H, Me, Pr, or Ph, were synthesized. Many were potent estrogens.

Journal of Medicinal Chemistry published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, Formula: C8H4ClF3O.

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

Karrenbrock, Friedhelm published the artcileCathodic formation of olefins from phosphonates, COA of Formula: C5H10Cl3O3P, the publication is Tetrahedron Letters (1979), 2915-16, database is CAplus.

Cathodic reduction of Cl₃CP(O)(OEt)₂ in the presence of RR¹CO [R = 4-MeOC₆H₄, CH₂:CMe, Me(CH₂)₄, R¹ = H; R = Et, R¹ = Me; R = R¹ = Bu; RR¹ = (CH₂)₄] gave 24-52% RCR¹:CCl₂. Similar reduction of (EtO)₂P(O)CCl₂CO₂Et in the presence of PhCHO or cyclohexanone gave 55% of a 40:60 mixture of E– and Z-PhCH:CClCO₂Et and 43% Et chlorocyclohexylideneacetate, resp.

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 C5H10Cl3O3P, COA of Formula: C5H10Cl3O3P.

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

Teulade, Marie Paule published the artcileα-Lithiated O,O-diethyl [chloro(trimethylsilyl)methyl]phosphonate. I. Preparation and properties, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Journal of Organometallic Chemistry (1988), 338(3), 295-303, database is CAplus.

Silylation of either (EtO)₂P(O)CH₂Cl or (EtO)₂P(O)CCl₃ in the presence of excess BuLi leads to the quant. generation of (EtO)₂P(O)CClLiSiMe₃. This stable type of anion can be protonated, deuterated, or alkylated. Compounds thus obtained can be desilylated in basic medium, or used for the preparation of α-bromo and α-iodo phosphonates after halogen-metal exchange. E.g., treating (EtO)₂P(O)CRClSiMe₃ (R = Me, Et, Pr, allyl) with BuLi, then 1,2-diiodoethane or 1,2-dibromoethane gave (EtO)₂P(O)CRXSiMe₃ (X = iodo, Br, resp.). Condensation with aliphatic and aromatic aldehydes gives vinylphosphonates without stereochem. control.

Journal of Organometallic 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 C9H9BrO2, Recommanded Product: Diethyltrichloromethylphosphonate.

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

Diziere, Rachel published the artcileA new simple method for the synthesis of 1-alkynylphosphonates using (EtO)₂P(O)CCl₃ as precursor, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Tetrahedron Letters (1996), 37(11), 1863-6, database is CAplus.

1-Alkynylphosphonates, (EtO)₂P(O)CCR (R = Ph, 4-Me₂NC₆H₄, 2-pyridyl, 2-thienyl, etc.), were obtained from (EtO)₂P(O)CCl₃ and aldehydes in a 1-pot procedure. It involves the formation of α-chlorovinyl phosphonate intermediates (E- and Z-isomers), (EtO)₂P(O)CHCl:CHR, by a Peterson olefination reaction followed by dehydrochlorination with LiHMDS.

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 C5H10Cl3O3P, Recommanded Product: Diethyltrichloromethylphosphonate.

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

Savelyev, Yuri V. published the artcileNovel polyurethane foams with biological activity and based composites, Formula: C38H74Cl2N2O4, the publication is Rigas Tehniskas Universitates Zinatniskie Raksti, Serija 1: Materialzinatne un Lietiska Kimija (2007), 107-114, database is CAplus.

New polyurethane foams with different formulations were synthesized. Created polyurethane foams are characterized by fungicidal activity against mold and yeast-like fungi of the genera: Aspergillis, Chaetomium, Penicillium, Trichoderma, and Candida and bactericidal activity in regards to some pathogenic bacteria: Staphylococcus aureus, E. coli, Klebsiella pneumoniae, Proteus. Polyurethane foams are characterized by the compatibility with organism tissues – fast germination of the tissues through the polyurethane foam samples from 1 up to 3 mo and practically absence of the united-tissued capsule and cell’s reaction. The polyurethane foam was used as supporting matrixes of granular solid adsorbents. The parameters of porous frame (pore volume on benzene W_s and sp. surface area S_BET) of the polyurethane foam-activated carbon sorbic composite systems at optimum ratios differ a little from the same indexes of virgin carbon and have practically identical tendency to change. These samples are possessed stability for fungi attack.

Rigas Tehniskas Universitates Zinatniskie Raksti, Serija 1: Materialzinatne un Lietiska Kimija published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, Formula: C38H74Cl2N2O4.

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

Villemin, Didier published the artcileAddition of diethyl trichloromethylphosphonate to olefins catalyzed by copper complexes, SDS of cas: 866-23-9, the publication is Tetrahedron Letters (1994), 35(21), 3537-8, database is CAplus.

R¹R²CClCH₂CCl₂P(O)(OEt)₂ (e.g., R¹ = CO₂Et, R² = H) were prepared in 31-65% yields by treating R¹R²C:CH₂ with Cl₃CP(O)(OEt)₂ catalyzed by Cu amine complexes.

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 C7H8BFO2, SDS of cas: 866-23-9.

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

Milani, Amir H. published the artcileLight-Triggered Programming of Hydrogel Properties Using Sleeping Photoactive Polymer Nanoparticles, Application of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride, the publication is Chemistry of Materials (2021), 33(7), 2319-2330, database is CAplus.

A key characteristic of programmable hydrogels is that their phys. and chem. properties can be changed postsynthetically. In order to achieve this, we used sub-50 nm photoacid/base generator nanoparticles, which could alter the charge d./polarity of a host macroscopic hydrogel (e.g., polyacrylamide). The photoacid generator (PAG) nanoparticles, were composed of poly(Me methacrylate-co-4,5-dimethoxy-2-nitrobenzyl methacrylate-co-1,6-hexanediol diacrylate) and exhibited a pH-dependent swelling behavior when they were irradiated with UV light. Thus, using PAG nanoparticles enabled space-selective light-triggered swelling of host hydrogels by increasing the charge d. at alk. pH. Using photobase generator (PBG) nanoparticles, consisting of poly(Me methacrylate-co-2-nitrobenzyl Me 4-methacryloyloxy piperidine-1-carboxylate-co-1,6-hexanediol diacrylate), it was possible to space-selectively produce pos. charge, at acidic pH, within the host hydrogel network. PBG nanoparticles added several functionalities to the host hydrogel, including reversible writing/erasing patterns as well as postpolymn. in desired sites. Including mixtures of PAG and PBG nanoparticles caused deswelling of the host hydrogel upon UV-irradiation By increasing the mass fraction of PAG/PBG nanoparticles within the hydrogel, the deswelling effect was limited only to the top surface area, resulting in a monolayer actuator with a large bending angle. This study has successfully demonstrated the excellent potential of using PAG/PBG nanoparticles to confer photoresponsive behaviors that transform nonresponsive hydrogels into responsive hydrogels on demand. This system could be spatially tailored to provide a wide range of useful properties such as initiation sites for synthesis, writing/erasing, and actuation.

Chemistry of Materials published new progress about 4569-86-2. 4569-86-2 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride, and the molecular formula is C22H23ClN4, Application of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride.

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

Kato, Naoya published the artcileSynthesis and evaluation of a novel adapter lipid derivative for preparation of cyclic peptide-modified PEGylated liposomes: Application of cyclic RGD peptide, Formula: C19H14Cl2, the publication is European Journal of Pharmaceutical Sciences (2022), 106239, database is CAplus and MEDLINE.

Peptide ligand modified nanoparticles can simply prepared by post-insertion method to mix pre-formed nanoparticles with peptide-lipid conjugates in an aqueous solution at an optimal temperature Therefore, water dispersibility of peptide-lipid conjugates is a very important factor for implementing the post-insertion method. We proposed that highly water dispersible peptide-lipid conjugates can be easily synthesized by sep. designing novel adapter lipids with different water dispersibility and reacting them with ligands in a highly efficient manner. Adapter lipids have three critical roles; as spacers of ligand-conjugated lipids for efficient ligand presentation, as structures that form discrete mol. weight distributions, and as providing water dispersibility. In this study, we developed a novel adapter-lipid derivative that enables a variety of cyclic peptide modifications using the click reaction. The integrin αvβ3-targeted cyclic RGDfK (cRGD) peptide was selected as the cyclic peptide ligand. We designed a novel alkyne-tagged lipid with a discrete peptide spacer and bound the cRGD peptide using a click reaction to synthesize a cRGD-conjugated lipid with good water dispersibility for the preparation of cRGD-modified PEGylated liposomes using the post-insertion method. We also revealed that cRGD-modified PEGylated liposomes are efficiently associated with integrin αvβ3-expressing murine colon carcinoma (Colon-26) cells in a modification amount- and peptide sequence-dependent manner, showing high cytotoxicity upon loading with doxorubicin. This novel adapter lipid derivative can be used to synthesize various cyclic peptides by click reactions and will provide useful insights for the future development of cyclic peptide-modified PEGylated liposomes.

European Journal of Pharmaceutical Sciences 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 C19H14Cl2, Formula: C19H14Cl2.

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