Tag: M.W=250-300

Dahl, Ragnvald published the artcileMolecular complexes between iodine cyanide and organophosphoryl compounds, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (1969), 25(1), 207-17, database is CAplus.

The formation constants (Kc), the enthalpy of formation (ΔH°), and the spectral shifts of the P-O stretching band (ΔνPO), and the C-I stretching band (ΔνCI) have been determined for the 1:1 complexes between I cyanide and 15 organophosphoryl compounds in C6H6 solution Linear relations have been observed between log Kc and ΔνCI. The present complexes were compared with those formed between organophosphoryl compounds with I and phenol and various correlations in donor-acceptor interactions have been discussed.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy 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

Yurchenko, R. I. published the artcileLeaving group in the Arbuzov reaction of diethyl 1-adamantyl phosphite, SDS of cas: 866-23-9, the publication is Zhurnal Obshchei Khimii (1984), 54(3), 714, database is CAplus.

(EtO)₂POR (I; R = 1-adamantyl) reacts with Cl and HCl primarily with cleavage of RCl; I reacts with CCl₄ to give 75% (EtO)P(OR)(O)CCl₃.

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 C12H10O4S, SDS of cas: 866-23-9.

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

Kumar, Awanish published the artcileViscosity-Reducing Bulky-Salt Excipients Prevent Gelation of Protein, but Not Carbohydrate, Solutions, SDS of cas: 21286-54-4, the publication is Applied Biochemistry and Biotechnology (2017), 182(4), 1491-1496, database is CAplus and MEDLINE.

The problem of gelation of concentrated protein solutions, which poses challenges for both downstream protein processing and liquid formulations of pharmaceutical proteins, is addressed herein by employing previously discovered viscosity-lowering bulky salts. Procainamide-HCl and the salt of camphor-10-sulfonic acid with L-arginine (CSA-Arg) greatly retard gelation upon heating and subsequent cooling of the model proteins gelatin and casein in water: Whereas in the absence of additives the proteins form aqueous gels within several hours at room temperature, procainamide-HCl for both proteins and also CSA-Arg for casein prevent gel formation for months under the same conditions. The inhibition of gelation by CSA-Arg stems exclusively from the CSA moiety: CSA-Na was as effective as CSA-Arg, while Arg-HCl was marginally or not effective. The tested bulky salts did not inhibit (and indeed accelerated) temperature-induced gel formation in aqueous solutions of all examined carbohydrates-starch, agarose, alginate, gellan gum, and carrageenan.

Applied Biochemistry and Biotechnology 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, SDS of cas: 21286-54-4.

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

Esmaeilzadeh, Pegah published the artcileStimuli-responsive multilayers based on thiolated polysaccharides that affect fibroblast cell adhesion, HPLC of Formula: 7080-50-4, the publication is ACS Applied Materials & Interfaces (2018), 10(10), 8507-8518, database is CAplus and MEDLINE.

Control of the biomaterial properties through stimuli-responsive polymeric platforms has become an essential technique in recent biomedical applications. A multilayer system of thiolated chitosan (t-Chi) and thiolated chondroitin sulfate (t-CS), consisting of five double layers ([t-Chi/t-CS]₅), was fabricated here by applying a layer-by-layer coating strategy. To represent a novel class of chem. tunable nanostructures, the ability to cross-link pendant thiol groups was tested by a rise from pH 4 during layer formation to pH 9.3 and a more powerful chem. stimulus by using chloramine-T (ChT). Following both treatments, the resulting multilayers showed stimuli-dependent behavior, as demonstrated by their content of free thiols, wettability, surface charge, elastic modulus, roughness, topog., thickness, and binding of fibronectin. Studies with human dermal fibroblasts further demonstrated the favorable potential of the ChT-responsive multilayers as a cell-adhesive surface compared to pH-induced crosslinking. Because the [t-Chi/t-CS]₅ multilayer system is responsive to stimuli such as the pH and redox environment, multilayer systems with disulfide bond formation may help to tailor their interaction with cells, film degradation, and controlled release of bioactive substances like growth factors in a stimuli-responsive manner useful in future wound healing and tissue engineering applications.

ACS Applied Materials & Interfaces published new progress about 7080-50-4. 7080-50-4 belongs to chlorides-buliding-blocks, auxiliary class Halogenation Reagent,Inhibitor, name is Sodium chloro(tosyl)amide trihydrate, and the molecular formula is C7H13ClNNaO5S, HPLC of Formula: 7080-50-4.

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

Nadirova, Maryana A. published the artcileCascade of the Hinsberg / IMDAF reactions in the synthesis 2-arylsulfonyl-3a,6-epoxyisoindoles and 4a,7-epoxyisoquinolines in water, Name: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, the publication is Tetrahedron (2021), 132032, database is CAplus.

N-Furfuryl allylamines, readily accessible from corresponding furfurals or furfuryl amines, react with a broad range of aryl sulfonyl chlorides with the formation of a 3a,6-epoxyisoindoles I [Ar = Ph, 2-thienyl, Ts, etc.; R¹ = H, I, Et, etc.; R² = H, Br, Me] in one synthetic stage was reported. Usually, in boiling water, the interaction sequence involved two consecutive steps: the Hinsberg reaction and the intramol. Diels-Alder furane (IMDAF) reaction. The scope and limitations of the proposed method were thoroughly investigated, and it was revealed that the key [4+2] cycloaddition step proceeded through an exo-transition state, giving rise to the exclusive formation of a single diastereomer of the target heterocycle. The method allowed the ability to obtain N-sulfaryl-substituted 3a,6-epoxyisoindoles I and 4a,7-epoxyisoquinolines, which were potentially useful substrates for further transformations and subsequent bioscreening, in particular antimicrobial activity.

Tetrahedron published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C7H3Cl2F3O2S, Name: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride.

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

Kochetkov, N. K. published the artcileCycloserine and related compounds. VIII. Synthesis of 3-isoxazolidones, Category: chlorides-buliding-blocks, the publication is Zhurnal Obshchei Khimii (1959), 3417-24, database is CAplus.

cf. CA 54, 8777i. Halo hydroxamic acids were prepared by a general reaction of acyl chlorides with H₂NOH in aqueous medium, the products being cyclized to 3-isoxazolidones by MeOH-KOH. To 32 g. NaOH in 120 ml. H₂O was added at 0° 55.5 g. NH₂OH.HCl and the resulting solution was treated below 5° with 68.6 g. BrCH₂CH₂COCl. After 1 hr. at 0-5°, 1.5 hrs. at 15°, the mixture was heated to 60° and filtered. The filtrate after 1-2 days at -5° gave 48-50% BrCH₂CH₂CONHOH (I), m. 88-90°. Similarly were prepared: 50-5% ClCH₂CH₂CONHOH, m. 102-4°; 52-5% BrCH₂CHMeCONHOH, m. 98-100°; 61% PhCHBrCH₂CONHOH, m. 85-90°; 65% ClCMe₂CH₂CONHOH, an oil; PhCH:CPhCONHOH (from PhCHBrCHPhCOCl), 50%, m. 147-9°; BrCH₂CHBrCONHOH, 55-60%, m. 151-3°: 50-60% ClCH₂CHClCONHOH, m. 95-7°. I (6.8 g.) in 15 ml. MeOH was treated with 40 ml. 2N MeOH-KOH and heated 40 min., yielding after filtration and evaporation and treatment of the residue with Et₂O 80-5% K salt of 3-isoxazolidone, decomposed 213-15°, which with aqueous AgNO₃ gave the Ag salt, decomposed 166-8°. The K salt treated with absolute EtOH-HCl gave 70% 3-isoxazolidone, m. 69-70°. Similarly, were prepared: 70% K salt of 4-methyl-3-isoxazolidone, decomposed 151-3° (free base decomposed 72-4°); 70% K salt of 5-phenyl-3-isoxazolidone, decomposed 285-7° (free base m. 121-3°); 50% K salt of 5,5-dimethyl-3-isoxazolidone, m. 122-5° (Ag salt, decomposed 166-8°; free base, an unpurifiable oil). The K salt of 3-isoxazolidone and BzCl in dioxane gave 47% N-benzoyl-3-isoxazolidone, m. 123-4°, also formed from the Ag salt in 40% yield. Similarly were prepared: 51% N-(p-nitrobenzoyl)-3 isoxazolidone, m. 178-80°, and 40% N-carbomethoxy-3-isoxazolidone, m. 106-8°.

Zhurnal Obshchei Khimii 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, Category: chlorides-buliding-blocks.

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

Oh, Myung J. published the artcileComparison of the resist effectiveness and leveling character of α-bromoacrylamide based and 2,4-dichloro-s-triazine based dye-resist agents for wool, Name: 2,3-Dibromopropionylchloride, the publication is Dyes and Pigments (2005), 70(3), 220-225, database is CAplus.

Three dye resists based on α-bromoacrylamide and three dye resists based on dichlorotriazine were synthesized and their effectiveness and leveling properties were compared on wool. In general, the dichlorotriazine based resist agents displayed higher resist effectiveness in dyeing than their α-bromoacrylamide counterparts. However, the resists based on α-bromoacrylamide exhibited better leveling properties than those based on dichlorotriazine. The resist effectiveness was significantly improved by increasing the number of sulfonate group in the dye-resist agents and the hydrophilic character of anionic dyes applied over them.

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, Name: 2,3-Dibromopropionylchloride.

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

Oh, Myung Joon published the artcileSynthesis of heteromultifunctional dyeresist agents containing chloro-s-triazine and α-bromoacrylamide and their dyeresist properties in wool fabrics, Safety of 2,3-Dibromopropionylchloride, the publication is Coloration Technology (2006), 122(4), 227-232, database is CAplus.

Five heteromultifunctional dye-resist agents containing chloro-s-triazine and α-bromoacrylamide were synthesized and their resist effectiveness on wool were compared. The dye-resist agent with the dichlorotriazinyl group showed better resist effectiveness than the dye-resist agent with the monochlorotriazinyl group. Also, their resist effectiveness was improved by increasing the number of sulfonate groups in the dye-resist agents and the reactive groups in the reactive dyes applied over them.

Coloration Technology 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, Safety of 2,3-Dibromopropionylchloride.

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

Kim, Kwang Soo published the artcileDyeing properties of reactive disperse dye having bromoacrylamide group, Application In Synthesis of 18791-02-1, the publication is Journal of the Korean Fiber Society (2001), 38(12), 683-692, database is CAplus.

A reactive disperse azo dye having an α-bromoacrylamido group was synthesized and its dyeing and fastness properties were compared with those of a a disperse dye. The amount of absorbed reactive disperse dye was less on polyester fabric than the disperse dye, and was much higher on nylon fabric. When polyester and nylon fiber were simultaneously dyed, the nylon absorbed more reactive disperse dye than polyester. The use of a carrier or a variation of dyebath pH was not able to provide the same color depth on both fibers. A nylon/polyester union fabric could be dyed with the reactive disperse dye and the color fastness was good to excellent.

Journal of the Korean Fiber Society 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, Application In Synthesis of 18791-02-1.

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

Okawara, Tadashi published the artcileFacile synthesis of four-, five-, six-, and seven-membered heterocyclic compounds by the reaction of hydrazines and thiosemicarbazides with α- and β-halogenoacyl halides in a two-phase system, Application of 2,3-Dibromopropionylchloride, the publication is Journal of Chemical Research, Synopses (1987), 254-5, database is CAplus.

Phase-transfer cyclization of RNHNHR (I, R = Ph, Me) with R¹CHXCOCl (II, R¹ = H, X = Cl; R¹ = Me, Et, Ph, X = Br) in the presence of PhCH₂N⁺Et₃ Cl^– gave diazetidinones III (R² = R) in 20-45% yields. Cyclization of thiosemicarbazides R³NHCSNHNH₂ (R³ = Bu, cyclohexyl, PhCH₂, Ph) with ClCH₂COCl gave diazetidinones III [R = R¹ = H, R² = C(:NR³)SCOCH₂Cl] in 52-84% yields. Similar cyclization of R⁴NHCSNMeNHMe (R⁴ = Ph, cyclohexyl, 1-naphthyl) with II gave thiadiazinone derivatives IV in 52-81% yields. Cyclization of I (R = Ph) with XCH₂CR⁵R⁶COCl (V, R⁵ = H, Me, R⁶ = X = Br; R⁵ = R⁶ = Me, X = Cl) gave diphenylpyrazolinones VI. Phase-transfer cyclization of R⁷NHCSNR⁸NH₂ (R⁷ = cyclohexyl, R⁸ = H, Me) with V (R⁵ = R⁶ = Me, X = Cl) gave 1,3,4-thiadiazepines, e.g. VII, along with azetidinone derivatives

Journal of Chemical Research, Synopses 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, Application of 2,3-Dibromopropionylchloride.

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