Chlorides-buliding-blocks

Ishiyama, Tatsuo published the artcileA stoichiometric aromatic C-H borylation catalyzed by iridium(i)/2,2′-bipyridine complexes at room temperature, Formula: C14H18BClO4, the publication is Angewandte Chemie, International Edition (2002), 41(16), 3056-3058, database is CAplus and MEDLINE.

Room-temperature C-H borylation using a stoichiometric amount of arenes and bis(pinacolato)diboron (pin₂B₂) is efficiently catalyzed by iridium(I) complexes generated from [{Ir(OMe)(cod)}₂] (cod = 1,5-cyclooctadiene) and 4,4′-di-tert-butyl-2,2′-bipyridine (dtbpy) in hexane, and provides the corresponding arylboronates in excellent yields. Thus, [{Ir(OMe)(cod)}₂]/dtbpy catalyzed C-H borylation of 1,2-dichlorobenzene with pin₂B₂ in hexane at 25° for 8h gave 82% 3,4-Cl₂C₆H₃Bpin.

Angewandte Chemie, International Edition published new progress about 408492-29-5. 408492-29-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ester,Boronate Esters,Boronate Esters,Boronic acid and ester,, name is Methyl 3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate, and the molecular formula is C14H18BClO4, Formula: C14H18BClO4.

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

Aspin, Samuel J. published the artcile9-Silafluorenyl dichlorides as chemically ligating coupling agents and their application in peptide synthesis, Related Products of chlorides-buliding-blocks, the publication is Angewandte Chemie, International Edition (2016), 55(44), 13833-13837, database is CAplus and MEDLINE.

A fundamentally simple, mild, and practical procedure for peptide bond formation is reported that employs a stoichiometric amount of easy-to-access 9-silafluorenyl dichlorides as the coupling agent. Without initial preactivation or elaboration of the carboxylic acid or amine termini of the amino acids, the developed reagent is proposed to act through an unprecedented chem. ligation mechanism, bringing the two coupling partners together before being subsequently eliminated. The desired amides or peptide bonds are thus furnished in good yields and with low to no epimerization.

Angewandte Chemie, International Edition published new progress about 1451393-45-5. 1451393-45-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (2-Bromo-4-chlorophenyl)boronic acid, and the molecular formula is C6H5BBrClO2, Related Products of chlorides-buliding-blocks.

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

Yoshihira, Kunitoshi published the artcileStereochemistry. XL. Rearrangement and trans-elimination contrary to the Chugaev reaction rule. 4. Thermal treatment on thionobenzoates, Application of 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, the publication is Yakugaku Zasshi (1969), 89(9), 1225-35, database is CAplus and MEDLINE.

Thermal treatment of xanthates bearing an anchimeric group causes rearrangement to dithiocarbonates or trans elimination depending on their conformation (contrary to the Chugaev reaction). Thiobenzoates, e.g. I, were similarly treated and the analogous conclusion was reached concerning results and mechanisms. The identification of 2-(dialkylamino)alkanethiols produced in this series was reexamined and Hansen’s report on the same problem was corrected with respect to isothiuronium salt formation and desulfurization by Raney Ni.

Yakugaku Zasshi published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C11H11BFNO4, Application of 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride.

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

Hideo, Endo published the artcileAntitumor activity of phenazine derivatives against S 180 and C 63 in mice I, Product Details of C22H23ClN4, the publication is Sci. Rept. Res. Inst., Tohoku Univ., Ser. C (1965), 12(1), 53-7, database is CAplus.

Phenazine and 68 derivatives of phenazine were screened for their antitumor activity against Sarcoma 180 and Carcinoma 63, transplanted in mice. The ratio of the average weights of tumors in the treated and the controls, and the ratio of body weight changes in the 2 groups were recorded for each compound 2-Methoxyphenazine, 3,7-diamino-2-methylphenazine and 3-morpholino-1,2-benzophenazine at doses of 50 mg./kg.-body weight/day, brought down the tumor weight to less than half in the carcinoma infected mice and 3-acetamido-7-amino-5-phenylphenazonium chloride at the same dosage caused a similar effect in the sarcoma-infected animals. No correlation was observed between tumor weight change and the change in body weight in the treated animals.

Sci. Rept. Res. Inst., Tohoku Univ., Ser. C 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

Corpas-Lopez, Victoriano published the artcileO-Alkyl Hydroxamates Display Potent and Selective Antileishmanial Activity, Related Products of chlorides-buliding-blocks, the publication is Journal of Medicinal Chemistry (2020), 63(11), 5734-5751, database is CAplus and MEDLINE.

Leishmania (L.) infantum causes visceral, cutaneous, and mucosal leishmaniasis in humans and canine leishmaniasis in dogs. Herein, we describe that O-alkyl hydroxamate derivatives displayed potent and selective in vitro activity against the amastigote stage of L. infantum while no activity was observed against promastigotes. Compound PhNHCO(CH₂)₆CONHOCPh₃ (I)showed potent in vivo activity against L. infantum. Moreover, the combination of compound 5 supported on gold nanoparticles and meglumine antimoniate was also effective in vivo and improved the activity of these compounds compared to that of the individual treatment. Docking studies showed that compound 5 did not reach highly conserved pocket C and established interactions with the semiconserved residues V44, A45, R242, and E243 in pocket A of LiSIR2rp1. The surface space determined by these four amino acids is not conserved in human sirtuins. Compound I represents a new class of selective ligands with antileishmanial activity.

Journal of Medicinal Chemistry 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, Related Products of chlorides-buliding-blocks.

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

Matsuo, Y. published the artcilePreparation and characterization of silylated graphite oxide, Quality Control of 14799-93-0, the publication is Carbon (2005), 43(14), 2875-2882, database is CAplus.

Graphite oxide was silylated by various alkylchlorosilanes in the presence of butylamine and toluene, and new intercalation compounds were obtained. The silylating reagents with two or three Cl atoms at Si in them reacted with graphite oxide, while no reaction occurred when silylating reagents with only one Cl atom was used. The silylating reagent mainly reacted with hydroxyl group of graphite oxide, forming Si-O bonding. The role of butylamine was not only exfoliating graphite oxide layer but also scavenging HCl mol. which caused the decomposition of silylated graphite oxide. The Si content was almost constant �.6 mol/graphite oxide for the samples silylated by alkyltrichlorosilane with shorter alkyl chain lengths. It increased with the increase of alkyl chain length and reached 1.7 mol/graphite oxide. The higher Si content could be ascribed to further silylation on hydroxyl groups formed at Si atoms of silylating reagent bonded to graphite oxide, bridging two silylating reagents.

Carbon published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Quality Control of 14799-93-0.

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

Wyrebska, Lucja published the artcileSynthesis and characterization of new polisher agent used in electroplating, Synthetic Route of 4569-86-2, the publication is Technologia i Jakosc Wyrobow (2012), 56(1-2), 30-35, database is CAplus.

The paper presents results of research on the preparation of polisher agent used in copper electroplating (electropolisher) and intermediate required for the synthesis of N,N-diethylphenosafranine (I). The multi-step synthesis of the intermediate I comprises the nitrosation of N,N-diethylaniline, reduction of p-nitroso-N,N-diethylaniline, oxidation of the resulting N,N-diethyl-p-phenylenediamine and its condensation with aniline. The polisher agent was obtained by diazotization of N,N-diethylphenosafranine and by reacting the resulting diazo compound with N,N-dimethylaniline, to obtain the product with absorption maximum λ_max = 584 (300) nm. The usage tests of the newly developed product have shown very good application properties.

Technologia i Jakosc Wyrobow 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 C7H7IN2O, Synthetic Route of 4569-86-2.

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

Koronkiewicz, Brian published the artcileShallow distance dependence for proton-coupled tyrosine oxidation in oligoproline peptides, Application In Synthesis of 42074-68-0, the publication is Journal of the American Chemical Society (2020), 142(28), 12106-12118, database is CAplus and MEDLINE.

We have explored the kinetic effect of increasing electron transfer (ET) distance in a biomimetic, proton-coupled electron-transfer (PCET) system. Biol. ET often occurs simultaneously with proton transfer (PT) in order to avoid the high-energy, charged intermediates resulting from the stepwise transfer of protons and electrons. These concerted proton-electron-transfer (CPET) reactions are implicated in numerous biol. ET pathways. In many cases, PT is coupled to long-range ET. While many studies have shown that the rate of ET is sensitive to the distance between the electron donor and acceptor, extensions to biol. CPET reactions are sparse. The possibility of a unique ET distance dependence for CPET reactions deserves further exploration, as this could have implications for how we understand biol. ET. We therefore explored the ET distance dependence for the CPET oxidation of tyrosine in a model system. We prepared a series of metallopeptides with a tyrosine separated from a Ru(bpy)₃²⁺ complex by an oligoproline bridge of increasing length. Rate constants for intramol. tyrosine oxidation were measured using the flash-quench transient absorption technique in aqueous solutions The rate constants for tyrosine oxidation decreased by 125-fold with three added proline residues between tyrosine and the oxidant. By comparison, related intramol. ET rate constants in very similar constructs were reported to decrease by 4-5 orders of magnitude over the same number of prolines. The observed shallow distance dependence for tyrosine oxidation is proposed to originate in part from the requirement for stronger oxidants, leading to a smaller hole-transfer effective tunneling barrier height. The shallow distance dependence observed here and extensions to distance-dependent CPET reactions have potential implications for long-range charge transfers.

Journal of the American Chemical Society 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, Application In Synthesis of 42074-68-0.

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

Pare, Brijesh published the artcileMineralization of Methylene violet dye using titanium dioxide in presence of visible light, Formula: C22H23ClN4, the publication is International Journal of Chemical Sciences (2011), 9(4), 1685-1697, database is CAplus.

Advanced oxidation processes are eco-friendly methods of destroying organic pollutants by using semiconductor and visible light. Photocatalytic degradation of Methylene violet has been investigated in aqueous heterogeneous suspension. The results indicated that photocatalytic reaction was enhanced in alk. medium. The degradation of dye depends on several parameters such as initial concentration of the dye, catalyst loading, pH, electron acceptors and light intensity. COD removal was measured at regular intervals to quantify the mineralization of methylene violet. Sunlight has also been effectively used to degrade Methylene violet.

International Journal of Chemical Sciences 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, Formula: C22H23ClN4.

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

Schroeter, G. published the artcileHydrogenated naphthalenes and their transformations. III. Tetrahydronaphthalenesulfonic acids, tetrahydronaphthols and their derivatives, HPLC of Formula: 61551-49-3, the publication is Justus Liebigs Annalen der Chemie (1922), 83-160, database is CAplus.

2-Tetralinsulfonic acid (tetrahydronaphthalene-2-sulfonic acid),formed by the action of concentrated H₂SO₄ upon C₁₀H₁₂, seps. with 2 H₂O from H₂SO₄, m. 75°. Sodium salt, glistening leaflets with 1 H₂O; barium salt, leaflets; lead salt,with 1 H₂O, small leaflets. Ammonium salt, glistening leaflets Chloride, plates, b₁₈ 197-200°, m. 58°. With NH₃ it yields the amide, m. 135-7°, and with PhNH₂, the anilide, m. 155-6°. The mixture of acids obtained when the sulfonation is carried out with ClSO₃H may be separated by crystallization of the acids from CHCl₃, the 1-acid separating first, or by precipitating the Pb salt of the 1-acid with Pb(OAc)₂ or by crystallizing the 2-amide from NaOH. 1-Tetralinsulfonic acid: lead salt, glistening leaflets with 3H₂O; sodium salt, leaflets with 2 H₂O, and barium salt, 3 H₂O. Amide, leaflets, m. 139-40°;chloride, m. 70-2°; anilide, m. 148-9°. Upon reduction of the chloride mixture with Zn dust, the tetralylthiols result. 2-Tetralylthiolacetic acid, by the reaction of ClCH₂CO₂Na upon C₁₀H₁₁SNa, needles, m. 78-80°. Ammonium salt, glistening leaflets. Concentrated H₂SO₄gives a greenish yellow color; on boiling the dilute solution and making alk. with NaOH, sodium bis-ar-tetrahydrothionaphthenedisulfonate is precipitated as fine steel-blue needles with Cu luster. The 1-thiolacetic acid crystallizes in glistening plates, m. 133-5°. Whenα-C₁₀H₇OH is reduced with H at 200°in the presence of Ni, the product consists of about 10% ofα-ketotetrahydronaphthalene, 25-30 %C₁₀H₁₁OH and a large quantity of C₁₀H₁₂. At low temperatures the ketone is the main product. In the reduction of the ketone with Na and EtOH, it yields ac-C₁₀H₁₁OH. ac-β-C₁₀H₁₁OH is the principal product of the catalytic reduction of β-C₁₀H₇OH. The SO₃H acids are therefore valuable starting points in the production of C₁₀H₁₁OH, which are formed by fusion with alkalies. These are called tetralols. 2-Tetralolmethyl ether, by the action of Me₂SO₄ in NaOH, b₁₁ 129-31°; acetate, rather viscous oil,b₁₄ 158°; benzoate, prisms, b₁₀220-2°, m. 96°. 2-Tetralol-3-sulfonic acid, by warming in concentrated H₂SO₄ until soluble in H₂O,needles, with 2 H₂O, m. 92°. The sodium and barium salts are difficultly soluble With diazo solutions it couples to form strongly colored azo dyes. Methoxy derivative, from C₁₀H₁₁OMe and concentrated H₂SO₄, m. 107°. 1-Bromo-2-tetralol, by the direct action of Br in CCl₄, b₁₃160°, m. 74°; also prepared by desulfonation of 1-bromo-2-tetralol-3-sulfonic acid (sodium salt, with 3H₂O) with HCl. This has a greater toxic effect upon bacteria than lysol or PhOH. 1,3-Dibromo-2-tetralol,b₁₂ 198-201°, m. 37°. Acetate, m. 87°, is the best means of purification. 1-Bromo-3-nitro-2-tetralol, by the action of HNO₃ on the SO₃H derivative, long yellow needles, m. 129°. Sodium salt, glistening red leaflets,which color wool a light orange shade. Methyl ether, yellow needles, m. 64°. 1-Chloro-3-nitro-2-tetralol, yellow needles,m. 96°. 1-Bromo-3-amino-2-tetralol, by reduction of the NO₂ derivative with SnCl₂ in Et₂O saturated with HCl, fine needles, m. 127° (hydrochloride, sulfate and nitrate sparingly soluble in cold H₂O); methyl ether,isolated as the sulfate, long needles with 4 H₂O. 3-Amino-2-tetralol (A) is also formed in the above reduction and forms leaflets, m. 202°. Its hydrochloride and nitrate are easily soluble in H₂O, while the sulfate is difficultly soluble Carbonyl-3,2-aminotetralol,C₁₀H₁₀.NH.CO.O by heating the azide in C₇H₈, m. 196°, also forms A when heated with concentrated HCl in a sealed tube. With piperonal A gives piperonylidene-3,2-aminotetratol, yellow, m. 160°; with alk. Me₂SO₄ it yields piperonylidene-3,2-aminotetralol methyl ether, m. 120°. With dilute HCl this yields the methyl ether of A, large leaflets, m.86°. 1-Amino-2-tetralol (B), obtained by coupling 2-C₁₀H₁₁OH with sulfanilic acid diazide and reducing with SnCl₂ or from 1-benzeneazo-2-tetralol(red, m. 84°; monobromo derivative m. 204°) with Na₂S₂O₄, leaflets, m. 148°. An isomer, m. 173°, is sometimes obtained which gives a carbonyl-aminotetralol, red needles, m. 188°. Carbonyl-1-amino-2-tetralol, m. 189-90°. Methyl ether of B, m.64°, is obtained by reducing 1,2-O₂NC₁₀H₆OMe with SnCl₂, isolating the product and reducing this with Na and AmOH, and yields B upon heating with HCl in a sealed tube. 1,3-Nitrotetralinsulfonic acid, obtained by the action of concentrated H₂SO₄ on 1-C₁₀H₁₁NO₂, forms an amide m.189°, and upon reduction with SnCl₂ and excess of HCl, or Fe and HCl, gives 1-aminotetralin-3-sulfonic acid (C),leaflets. When a mixture of the 1- and 2-NO₂ derivatives is sulfonated, 2-nitrotetralin-4-sulfonic acid is also formed, the amide of which m. 211-2°, and which yields 2-aminotetralin-4-sulfonic acid on reduction, the hydrochloride of which is soluble in 120 parts H₂O. The action of alkalies on C gives, as the main product, AcNHC₁₀H₁₁. 4-Acetamino-2-tetralol is obtained by heating the diazo solution from 4,2-AcNHC₁₀H₁₀NH₂, m. 222°,and, on saponification, gives 4-amino-2-tetralol, leaflets, m. 177°. 1,3-Dinitro-2-tetralol, pale yellow needles, m. 141°. Sodium salt, orange-yellow; potassium salt, orange-yellow; ammonium salt,citron-yellow; barium and lead salts. The 1st 2 salts change color on heating and explode at 180-90°, while the last 3 do not change color and burn quietly on heating. Methyl ether (D), from MeNaSO₄ and(O₂N)₂C₁₀H₉ONa in C₇H₈, needles, m. 86.5°. Reduced with SnCl₂ in Et₂O, 1-nitro-3-amino-2-tetralol results, Cu-colored needles, m. 127°. Hydrochloride, pale yellow leaflets. Methyl ether, by the reduction of D, yellow leaflets, m. 117°. Hydrochloride, sparingly soluble in HCl, but decomposed by H₂O. Reduced with SnCl₂ in EtOH,1,3-diamino-2-tetralol is formed, leaflets, m. 214-6°. Methyl ether, prisms, m. 89°. Heated under pressure with CO₂ in the presence of alkalies,2-C₁₀H₁₁OH gives 2,3-tetralsalicylic acid, m.182°; sodium and calcium salts. Methyl ester, b₁₅179°, m. 42°. Ethyl ester, b₁₃ 179°. 2-Tetralol-3-carbonic hydrazide, m. 146°. Acetonehydrazone, m.235°. Azide, long needles, m. 99-100°. Anilide, m.182-4°. 2,3-Acetyltetralol-carboxylic acid, m. 142-3°. 1-Nitro-2-tetralol-3-carboxylic acid, yellow needles, m.200-2°, which may be reduced to the 1-amino derivative, prisms,m. 208-10°; the hydrochloride is sparingly soluble in HCl and the diacetate m. 180-1°. 4-Amino-1-tetralol, needles m. 146-7°, may be obtained by reducing p-ONC₁₀H₁₀OH with SnCl₂, or 1-tetralol-4-azobenzene-4′-sulfonic acid, red dye, by means of alk. Na₂S₂O₄. Ethyl ether (Ber. 31, 898), by reduction of EtOC₁₀H₁₀N₂ Ph with H, m. 60°,and gives p-ethoxytetralylurea, m. 240-1°. 2-Amino-1-tetralol, m. 110-1°, gives with urea an oxazolone, m. 205°. 3-Acetamino-1-tetralol, from the diazo compound, needles, m.211°. 3-Amino-1-tetralol, leaflets, m. 197°;hydrochloride, needles. With K₂CO₃ and CO₂ this gives 1,2-tetralsalicylic acid, m. 165-6°,the sodium salt of which crystallizes as leaflets with 3H₂O. Acetate, m. 170°. Methyl ester,b₁₆ 190°, m. 56°. Hydrazide, long needles, m.205°. Acetonehydrazone, m. 136°. Azide, m. 84°.

Justus Liebigs Annalen der Chemie published new progress about 61551-49-3. 61551-49-3 belongs to chlorides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 5,6,7,8-Tetrahydronaphthalene-2-sulfonyl chloride, and the molecular formula is C10H11ClO2S, HPLC of Formula: 61551-49-3.

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