Month: November 2022

Hadj-Kali, Mohamed K. published the artcileApplication of deep eutectic solvents and their individual constituents as surfactants for enhanced oil recovery, Synthetic Route of 23616-79-7, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2015), 221-231, database is CAplus.

We investigated the potential use of choline chloride/urea and choline chloride/glycerol deep eutectic solvents (DESs) and their individual constituents (the salt and the hydrogen bond donor) as surfactants for enhanced oil recovery. The interfacial tension (IFT) between Saudi medium crude oil and different concentrations of these DESs (and their individual components) in 10 wt% NaCl aqueous solutions were measured as a function of temperature Results showed that the IFT values decreased with the increase of both the DES concentration and temperature The effect of adding the salt and the hydrogen bond donor (HBD) sep., without forming the corresponding DES, on IFT values was also explored. It was found that, in most cases, adding the DES or its corresponding constituents sep. has the same effect on the IFT. Furthermore, ¹H NMR and different 2D NMR anal. (NOESY and HOESY) were used to examine the nature of mol. interactions that occur in studied DESs and how water affects these interactions. It was found that while the content of water is below 25 wt% the interactions of DES’ components become weak. However, the addition of 50 wt% water breaks the hydrogen bonding so that no interactions between the HBD and the salt were observed

Colloids and Surfaces, A: Physicochemical and Engineering Aspects 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, Synthetic Route of 23616-79-7.

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

Zhang, Hefeng published the artcileAnionic polymerization and polyhomologation: an ideal combination to synthesize polyethylene-based block copolymers, HPLC of Formula: 5034-06-0, the publication is Chemical Communications (Cambridge, United Kingdom) (2013), 49(79), 8952-8954, database is CAplus and MEDLINE.

A novel one-pot methodol. combining anionic polymerization and polyhomologation, through a “bridge” mol. (BF₃OEt₂), was developed for the synthesis of polyethylene (PE)-based block copolymers. The anionically synthesized macroanion reacts with the “bridge” mol. to afford a 3-arm star (trimacromol. borane) which serves as an initiator for the polyhomologation.

Chemical Communications (Cambridge, United Kingdom) published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C15H21BO3, HPLC of Formula: 5034-06-0.

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

Zhang, Hefeng published the artcileAnionic polymerization and polyhomologation: an ideal combination to synthesize polyethylene-based block copolymers, Formula: C19H34ClN, the publication is Chemical Communications (Cambridge, United Kingdom) (2013), 49(79), 8952-8954, database is CAplus and MEDLINE.

A novel one-pot methodol. combining anionic polymerization and polyhomologation, through a “bridge” mol. (BF₃OEt₂), was developed for the synthesis of polyethylene (PE)-based block copolymers. The anionically synthesized macroanion reacts with the “bridge” mol. to afford a 3-arm star (trimacromol. borane) which serves as an initiator for the polyhomologation.

Chemical Communications (Cambridge, United Kingdom) 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 C12H19BrS, Formula: C19H34ClN.

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

Al-Kindy, Salma M. Z. published the artcileHIGH-PERFORMANCE LIQUID CHROMATOGRAPHY DETERMINATION OF ANILINES WITH FLUORESCENT DETECTION AND PRE-COLUMN DERIVATIZATION, HPLC of Formula: 10543-42-7, the publication is Instrumentation Science & Technology (2013), 41(1), 48-59, database is CAplus.

A simple, sensitive, and rapid reverse-phase high-performance liquid chromatog. (RP-HPLC) method for the determination of anilines in water is proposed. The use of 2,7-diethylamino-2-oxo-2H-chromen-3-yl-benzothiazole-6-sulfonylchloride (coumarin 6-SO₂Cl) as a fluorigenic-labeling reagent was investigated. The label reacted with aniline within 30 min under mild conditions (ambient temperature, pH 9.0) to give sulfonamides that were separated by RP-HPLC employing fluorescence detection with an excitation wavelength of 470 nm and an emission wavelength of 520 nm. The optimum conditions for fluorescence, derivatization, and chromatog. separation were established. The calibration curves were linear for the range 0-800 ppb. The proposed method was applied for the determination of anilines in spiked drinking water samples and irrigation water samples with recoveries of 90.0-103.9% and relative standard deviations of 1.2-4.7%, resp. This method showed good accuracy and repeatability that can be used for the quantification of aniline in real samples.

Instrumentation Science & Technology published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, HPLC of Formula: 10543-42-7.

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

Nagiev, Kh. Dzh. published the artcilePhotometric determination of gallium(III) with 2,3,4-trihydroxyphenylazo-5′-sulfonaphthalene and decamethoxine in various media, Recommanded Product: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Kimya Problemlari (2008), 41-44, database is CAplus.

With the purpose of establishing of an opportunity of photometric determination of Ga(III), complex formation with 2,3,4-trihydroxyphenylazo-5′-sulfonaphtalene in the presence of decamethoxin in acetate environments-ammoniac buffers, sulfuric and azotic acids was studies. Spectrophotometric characteristics and constants of stability of a complex with relation of components Ga(III): R: Dek = 1:2:1 which has the maximal yield at pH = 4, 0.5M H₂SO₄ and 0.1M HNO₃ were calculated It is positioned that a complex formative in the environment H nitrate characterized by the greatest (Δλ = 117 nm) both the constant of stability (Ig β = 15.29 ± 0.17) and the least sensitivity (ε = 6250). The technique of photometric determination of Ga in all researched environments was developed and established, that reactions in milieu of acetate-ammoniac buffers (pH = 4) and 0.1M HNO₃ possess sharp selectivity.

Kimya Problemlari 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, Recommanded Product: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride.

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

Yashmin, Sabina published the artcileDMSO-assisted environmentally benign synthesis of benzo[c]-chromeno[4,3,2-gh]phenanthridines by remote oxidative hetero cross-coupling cyclization and aromatization reaction, SDS of cas: 19652-33-6, the publication is Chemical Communications (Cambridge, United Kingdom) (2022), 58(39), 5853-5856, database is CAplus and MEDLINE.

An unprecedented metal-free and catalyst-free synthesis of benzo[c]chromeno[4,3,2-gh]phenanthridine derivatives such as I and II, a class of 1,6-diheterophenalenoid heterocycle, was reported for the first time. The oxidative cross-coupling reaction for the remote cyclization is achieved through the in situ generated o-quinone methide intermediate followed by an electrocyclic ring closure reaction. The aromatization of the cyclohexane ring is achieved by sequential H shift, hydroxylation, and elimination reaction. DMSO-assisted concomitant cyclization and aromatization reactions are also disclosed for the first time.

Chemical Communications (Cambridge, United Kingdom) 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 C12H14IN, SDS of cas: 19652-33-6.

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

Ali, Amena published the artcileSynthesis and Biological Evaluations of N-(4-Substituted Phenyl)-7-Hydroxy-4-Methyl-2-Oxoquinoline-1(2H)-Carbothioamides, Quality Control of 3696-23-9, the publication is Polycyclic Aromatic Compounds, database is CAplus.

In continuance of search for new compounds authors report herein the expedient and optimized synthesis of a series of N-(4-substituted phenyl)-7-hydroxy-4-methyl-2-oxoquinoline-1(2H)-carbothioamides I (R = 4-Cl, 4-NO₂, 4-Et, etc.) in good yields. The anticancer and antioxidant activities were determined as per the standard protocol. Nearly 5 dozens of cancer cell lines derived from nine different panels are used in the study and anticancer activity was calculated as growth percents (GPs) and percent growth inhibitions (%GIs). The mol. docking simulation against one of the potential targets i.e., epidermal growth factor receptor (EGFR) was done to find the putative approach of action of the title compds I. Compound I (R = 4-NO₂) showed the most promising anticancer activity with higher sensitivity against UO-31, HOP-92, CAKI-1, LOX IMVI and T-47D with GPs of 66.65, 72.63, 85.80, 86.11, and 86.96 resp. The compd I (R = 4-NO₂). exhibited antioxidant activity with an IC₅₀ value of 15.21 +/= 1.52 μM. The mol. docking simulation showed an efficient binding of compd I (R = 4-NO₂) against the activity site of EGFR with two H-bond interactions with the residues Gln791 and Thr854, a π-π stacking and a π-cationic interaction with the residue Phe856, while a salt bridge interaction with the residue Lys745.

Polycyclic Aromatic Compounds published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C7H7ClN2S, Quality Control of 3696-23-9.

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

Suliman, Fakhr Eldin O. published the artcileMicrofluidic precolumn derivatization of environmental phenols with coumarin-6-sulfonyl chloride and HPLC separation, Product Details of C9H5ClO4S, the publication is Journal of Chromatographic Science (2015), 53(8), 1379-1385, database is CAplus and MEDLINE.

A simple, fast, sensitive and versatile method for the anal. of phenols in water is proposed using microfluidic precolumn derivatization with the fluorogenic label coumarin-6-sulfonyl chloride (C6SCl) and HPLC separation on monolithic columns. Phenols react with C6SCl within 3.0 min in the microreactor at ambient temperature to produce phenol-coumarin sulfonamides derivatives which were separated in reversed phase high-performance liquid chromatog. followed by postcolumn ring-opening and fluorescence detection at λexc = 360 nm and λem = 460 nm. The optimum conditions for the derivatization, separation and ring-opening reaction have been established. The calibration curves were linear for the studied phenols in the range of 0.75-12.5 mg L-1. The application of the method to environmental samples was demonstrated by analyzing tap and fountain water samples spiked with the phenolic compounds

Journal of Chromatographic Science published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C18H12ClNO, Product Details of C9H5ClO4S.

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

Douglas, James J. published the artcileA Visible-Light-Mediated Radical Smiles Rearrangement and its Application to the Synthesis of a Difluoro-Substituted Spirocyclic ORL-1 Antagonist, Computed Properties of 254749-11-6, the publication is Angewandte Chemie, International Edition (2015), 54(49), 14898-14902, database is CAplus and MEDLINE.

In the presence of Ru(bpy)₃Cl₂ (bpy = 2,2′-bipyridine), 2-bromo-2,2-difluoroethyl arylsulfonates (and a styrenesulfonate) such as bromodifluoroethoxysulfonylthiophenecarboxylate I underwent chemoselective photochem. Smiles rearrangements mediated by Bu₃ and HCO₂H in DMSO to yield β-aryl-β,β-difluoroethanols such as II in 24-94% yields; a pyridinesulfonate and a chloropyrazolesulfonate were ineffective substrates in the photochem. Smiles rearrangement. Using the method, I was converted to the ORL-1 receptor antagonist III•HCl in five steps; the photochem. step could be conducted on 15 g scale using 0.01 mol% of the ruthenium catalyst, and the overall route compares favorably to the current synthetic sequence for III. The bromodifluoroethyl esters were prepared in two steps from Et bromodifluoroacetate via reduction to 2-bromo-2,2-difluoroethanol which was prepared on 40 g scale. 2-Bromo-2,2-difluoroethanol is volatile and a lachrymator and should be handled in a hood, and the photochem. Smiles rearrangements generate toxic SO₂ gas as a byproduct.

Angewandte Chemie, International Edition published new progress about 254749-11-6. 254749-11-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene, name is 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, and the molecular formula is C7H3Cl2NO2S, Computed Properties of 254749-11-6.

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

Farrera-Sinfreu, Josep published the artcileSolid-phase synthesis of sulfamate peptidomimetics, Recommanded Product: 3-Chloro-4-hydroxyphenylacetic acid, the publication is Journal of Combinatorial Chemistry (2007), 9(3), 501-506, database is CAplus and MEDLINE.

A synthetic method for the preparation of sulfamate peptidomimetics is described. The methodol. allows sulfamoylation in the solid phase using sulfamoyl chloride in DMA, followed by the acylation of the corresponding sulfamoylated product. Following this approach, several derivatives have been prepared starting from distinct alc. sources, including α-, β-, and γ-hydroxyacids and phenols. The presence of protected amino functions on the building blocks opens the possibility of the addition of more diversity. This approach, which is compatible with Fmoc/Boc/Alloc protection, provides a useful and efficient tool for the preparation of new sulfamate peptidomimetics.

Journal of Combinatorial Chemistry published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Recommanded Product: 3-Chloro-4-hydroxyphenylacetic acid.

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