Month: December 2022

Ismail, Imam published the artcileReactions with coumarin. V., SDS of cas: 10543-42-7, the publication is Afinidad (2000), 57(487), 217-221, database is CAplus.

Several coumarin-6-sulfonamides (I; R = H, Me; substituent attached ortho, meta, or para) were prepared by reaction of coumarin-6-sulfonyl chloride with different aromatic amino compounds Imidazole derivatives were formed by reaction of I (R = Me) with ethylenediamine. Reaction of I (R = Me) with hydrazine hydrate afforded acid hydrazides. An oxadiazole was synthesized by reaction of a hydrazide with BzCl to give a diacylhydrazine, which cyclized to the oxadiazole derivative by heating with POCl₃. A thiadiazole derivative was synthesized by reaction of a hydrazide with Ph isothiocyanate, followed by treatment with POCl₃. Reaction of I (R = Me) with excess hydrazine hydrate (1:5 mol) proceeded with α-pyrone ring fission to give the corresponding cinnamoyl hydrazide derivatives Condensation of one of these with furfural gave the hydrazone, which cyclized to the oxadiazole on treatment with acetic anhydride.

Afinidad 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, SDS of cas: 10543-42-7.

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

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

Barhoumi, A. published the artcileA DFT study of the mechanism and regioselectivity of the reaction between diethyl trichloro-methyl phosphonate and diphenyl methyl phosphinite, Category: chlorides-buliding-blocks, the publication is Moroccan Journal of Chemistry (2020), 8(4), 830-840, database is CAplus.

The reaction of di-Et trichloro-Me phosphonate (C1) with di-Ph Me phosphinite (C2), has been scrutinized within the D. Function Theory at the B3LYP/6-311(d,p) computational level. The regiosomeric reaction paths involving the two center of compound (C1) have been studied. DFT calculations account for the high regioselectivity in the chlorine atom, in complete agreement with the exptl. outcomes.

Moroccan Journal of 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, Category: chlorides-buliding-blocks.

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

Bonacchi, Sara published the artcileSurface-Induced Selection During In Situ Photoswitching at the Solid/Liquid Interface, Category: chlorides-buliding-blocks, the publication is Angewandte Chemie, International Edition (2015), 54(16), 4865-4869, database is CAplus and MEDLINE.

Here we report for the first time a submolecularly resolved scanning tunneling microscopy (STM) study at the solid/liquid interface of the in situ reversible interconversion between two isomers of a diarylethene photoswitch, i.e., open and closed form, self-assembled on a graphite surface. Prolonged irradiation with UV light led to the in situ irreversible formation of another isomer as byproduct of the reaction, which due to its preferential physisorption accumulates at the surface. By making use of a simple yet powerful thermodn. simulation, physicochem. we provide a quant. description for the observed surface-induced selection of one isomeric form.

Angewandte Chemie, International Edition 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, Category: chlorides-buliding-blocks.

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

Barman, Siti published the artcileNMR, surface tension and conductance study to investigate host-guest inclusion complexes of three sequential ionic liquids with β-cyclodextrin in aqueous media, Quality Control of 23616-79-7, the publication is Chemical Physics Letters (2016), 43-50, database is CAplus.

Host-guest inclusion complexes of 3 sequential cationic room temperature surface active ionic liquids, benzyltrialkylammonium chloride [(C₆H₅CH₂)N(C_nH_2n+1)₃Cl; where n = 1, 2, 4] with β-cyclodextrin in aqueous media have been studied using surface tension, conductance and NMR spectroscopy. All the studies suggested that the hydrophobic benzyl group of ionic liquids is encapsulated inside into the cavity of β-cyclodextrin and played a crucial role in supporting the formation of inclusion complexes. The variation of the thermodn. parameters with guest size, shape is used to draw inferences about contributions to the overall binding by the driving forces, viz., hydrophobic effect, steric hindrance, van der Waal force, and electrostatic force.

Chemical Physics Letters 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, Quality Control of 23616-79-7.

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

Herscovici, Jean published the artcileSynthesis of spiroepoxynucleosides, Recommanded Product: trimethyloxosulphonium chloride, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1986), 1297-301, database is CAplus.

The first syntheses of spiroepoxyhexopyranosylpurines and -pyrimidines, e.g., I (R = theophyllinyl, thyminyl), are reported. The spiro epoxy group was introduced at C-2′ by treatment of 2′-keto-β-L-nucleosides with dimethylsulfoxonium methylide. Addition of the sulfur ylide generated from Me₃SOCl and NaH afforded β-L–talo– and β-L–galacto-spironucleosides. Interestingly, when trimethylsulfoxonium chloride was activated with BuLi, an inversion took place at C-1′ leading exclusively to an α-L–galacto-spironucleoside.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) 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 C3H9ClOS, Recommanded Product: trimethyloxosulphonium chloride.

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

Lashkhi, V. L. published the artcileIR spectroscopic study phosphonic acid esters – antiwear additives for oil, Product Details of C5H10Cl3O3P, the publication is Khimiya i Tekhnologiya Topliv i Masel (1977), 59-61, database is CAplus.

The relation between the antiwear properties of R1PO(OR2)2 (R1 = Me, MeC6H4, CCl3, Ph, CCl3C6H4; R2 = Et, MeC6H4, Bu, CH2CCl3, C6H4Pr) lubricating oil additives and their IR spectra was determined The force constants and vibration frequencies of the P:O and P-O-C bonds vary with the electronegativity of R1 and R2. A direct correlation was established between the vibration frequency of the P:O bond and adhesion of the phosphonate to a steel surface.

Khimiya i Tekhnologiya Topliv i Masel 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, Product Details of C5H10Cl3O3P.

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

Kharrasova, F. M. published the artcileReaction of carbon tetrachloride with alkyl esters of three-coordinate phosphorus atom acids in the presence of benzaldehyde, Quality Control of 866-23-9, the publication is Zhurnal Obshchei Khimii (1979), 49(11), 2442-6, database is CAplus.

The reaction of CCl₄ with RR¹POR² (R = EtO, Et, p-ClC₆H₄, p-MeC₆H₄; R¹ = EtO, BuO, Et; R² = Me, Et, Bu) (5 compounds) in presence of BzH (1:2:2) was investigated. Thus, reaction of (EtO)₃P with CCl₄ gave (EtO)₂P(O)CCl₃, (EtO)₃PO, (EtO)₂P(O)Cl, stilbene, PhCH:CCl₂, (EtO)₂P(O)OCH(CCl₃)Ph and a pyrophosphate. The mechanism of formation of the products was discussed.

Zhurnal Obshchei Khimii 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, Quality Control of 866-23-9.

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

Budzikiewicz, Herbert published the artcilePhotosynthesis in green plants III. Investigation of the chemical processes in Metzner’s model for photosynthesis, Product Details of C22H23ClN4, the publication is Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, Biochemie, Biophysik, Biologie (1970), 25(5), 525-8, database is CAplus and MEDLINE.

Thin-layer chromatog. investigations of the Metzner photosynthesis system show that no diethylsafranine is formed by reaction of Ag with janus green (I). Volume and pH measurements with and without I and chlorophyll a show that Cl formed by photolysis of AgCl, reacts with H2O to give HCl and O and also with I to give decomposition products.

Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, Biochemie, Biophysik, Biologie 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, Product Details of C22H23ClN4.

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

Raja, K. Kanmani published the artcileSynthesis, spectral, electrochemical and catalytic properties of Cu(II), Ni(II) and Co(II) complexes containing N,O donors, Computed Properties of 19652-33-6, the publication is Journal of Molecular Catalysis A: Chemical (2009), 303(1-2), 52-59, database is CAplus.

Metal(II) chelates of Schiff bases derived from the condensation of multi-substituted aniline with salicylaldehyde derivatives were prepared Product structures were determined by NMR, IR, EPR, magnetic and cyclic voltammetry measurements. The complexes are of the type M(X-DPMP)₂ [(M = Cu(II), Ni(II) or Co(II)), DPMP = 2-[[(2,6-diisopropylphenyl)imino]methyl]phenol, X = Br, Cl, I, BrCl]. These Schiff bases behave as monobasic bidentate ligands in their complexes. The spectral data indicate that the ligand coordinates through a phenolic oxygen and the azomethine nitrogen atoms. The observed A _|| values in the Cu(II) complexes indicate a tetrahedrally distorted square planar structure. The cyclic voltammetric redox potential of copper(II) and nickel(II) complexes suggest the existence of irreversible pairs in acetonitrile. Cu(Br-DPMP)₂ was found to be an efficient catalyst for the cyanosilylation of aldehydes under mild conditions.

Journal of Molecular Catalysis A: Chemical 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, Computed Properties of 19652-33-6.

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