Category: chlorides-buliding-blocks

Metabolism of 2,4-, 2,5-, and 3,4-dichloronitrobenzene in the rabbit was written by Bray, H. G.;James, Sybil P.;Thorpe, W. V.. And the article was included in Biochemical Journal in 1957.Application In Synthesis of 5-Amino-2,4-dichlorophenol This article mentions the following:

The metabolism of 2,4-, 2,5-, and 3,4-dichloronitrobenzene has been studied in the rabbit. The main products excreted in urine are mercapturic acids (corresponding to 30-50% of the dose) and phenols conjugated with glucuronic and sulfuric acids. Smaller amounts of dichloroanilines are excreted. The mercapturic acids have been isolated and their structure has been confirmed by synthesis. In each case they are formed by substitution of the labile Cl. 2-Bromo-4-chloro-, 2-bromo-5-chloro-, and 4-bromo-3-chloronitrobenzene when fed to rabbits yield the same mercapturic acids as do the corresponding dichloronitrobenzenes. The following nitro- and aminodichlorophenols excreted have been identified: N-acetyl-S-(5-chloro-2-nitrophenyl)-L-cysteine, m. 192°, [α]_D²⁰ in EtOH + 63 ± 3°, absorption maximum 253 mμ, 375, N-acetyl-S-(4-chloro-2-nitrophenyl)-L-cysteine 161-2, 104 ± 7, 249, 390; N-acetyl-S-(2-chloro-4-nitrophenyl)-L-cysteine 192-194, -4 ± 4, 345; 2,4-, 2,5- and 3,4-dichloroaniline, 2,4-dichloro-5-nitrophenol, 3,5-dichloro-2-nitrophenol, 2-amino-3,5-dichlorophenol, 3-amino-2,6-dichlorophenol, 5-amino-2,4-dichlorophenol, 2,5-dichloro-4-nitrophenol, 3-amino-2,5-dichlorophenol, 4-amino-2,5-dichlorophenol, 2-aminodichlorophenol, 5-amino-2,3-dichlorophenol. R_f values in 3 solvents have been determined for the various possible metabolites of the dichloronitrobenzenes. 3,3′,4,4′-Tetrachloroazoxybenzene has been isolated from the urine of rabbits given 3,4-dichloronitrobenzene. The difference between the metabolic fates of the dichloronitrobenzenes and those of the monochloronitrobenzenes are discussed. Mercapturic acid formation provides the major metabolite pathway for the dichloro compounds and hydroxylation is the principal metabolite process for the monochloro compounds In the experiment, the researchers used many compounds, for example, 5-Amino-2,4-dichlorophenol (cas: 39489-79-7Application In Synthesis of 5-Amino-2,4-dichlorophenol).

5-Amino-2,4-dichlorophenol (cas: 39489-79-7) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Application In Synthesis of 5-Amino-2,4-dichlorophenol

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Nature based forward osmosis membranes: A novel approach for improved anti-fouling properties of thin film composite membranes was written by Yassari, Mehrasa;Shakeri, Alireza. And the article was included in Chemical Engineering Research and Design in 2022.Quality Control of Trimesoylchloride This article mentions the following:

Herein, polyamide thin-film composite forward osmosis (TFC-FO) membranes were fabricated using beta-cyclodextrin-graft-poly acrylic acid (β-CD-g-PAA), as a nature-based graft polymer. The polymer was synthesized by free radical graft polymerization and was consequently incorporated into the active layer to enhance the hydrophilicity, anti-fouling, and overall performance of the conventional TFC-FO membrane. The effect of synthesized polymer concentration on characteristic features such as roughness, morphol., and hydrophilicity of the polymer-modified membranes was thoroughly investigated using different characterization techniques. Apart from that, the separation performance of the newly developed membranes was investigated in FO and reverse osmosis (RO) filtration systems. The transport data revealed increased water flux of around 1.5 times for the membrane which was modified with 1250 ppm of β-CD-g-PAA solution (TFC-1250) compared to pristine TFC in the FO mode. Interestingly, the mentioned membrane showed demonstrably perm-selectivity of 0.043 bar in RO filtration system. The antifouling investigations of the TFC-1250 membrane against protein and organic foulant in FO mode, not only showed minor fouling tendency, but also revealed great flux recovery ratio (FRR>98%) with a simple washing step. These observations prove the reversible characteristic of fouling in FO process. Hence, this project opens a new way to surface functionalization of TFC membranes with nature-based polymers to render selectivity as well as antifouling features to them. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Quality Control of Trimesoylchloride).

Trimesoylchloride (cas: 4422-95-1) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Quality Control of Trimesoylchloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Stable isotope probing reveals specific assimilating bacteria of refractory organic compounds in activated sludget was written by Sun, Haohao;Huang, Kailong;Zhang, Xuxiang;Ren, Hongqiang;Ye, Lin. And the article was included in Water Research in 2022.Quality Control of 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea This article mentions the following:

Activated sludge in wastewater treatment bioreactors contains diverse bacteria, while little is known about the community structure of bacteria responsible for degradation of refractory organic compounds (ROCs). In this study, 10 ROCs frequently detected in sewage were investigated, and the potential bacteria degrading these ROCs were analyzed by DNA stable isotope probing and high-throughput sequencing. The results showed that the bacterial communities responsible for degradation of different ROCs were largely different. A total of 84 bacterial genera were found to be involved in degrading at least one of the 10 ROCs, however, only six genera (Acinetobacter, Bacteroides, Bosea, Brevundimonas, Lactobacillus and Pseudomonas) were common to all 10 ROCs. This suggests that different ROCs may have specific assimilating bacteria in the activated sludge. Our results also showed that these ROC-degrading bacteria are difficult to isolate by conventional methods and that most of them have relatively low relative abundance in municipal wastewater treatment bioreactors. Development of new technologies to increase the abundance and activity of these bacteria may significantly improve the removal efficiency of ROCs from wastewater. In the experiment, the researchers used many compounds, for example, 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2Quality Control of 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea).

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Immobilization of copper(II) on mesoporous MCM-41: A highly efficient and recyclable catalyst for tandem oxidative annulation of amidines and methylarenes was written by Jiang, Minhua;Tuo, Yuxin;Cai, Mingzhong. And the article was included in Journal of Porous Materials in 2020.Formula: C7H8Cl2N2 This article mentions the following:

A new 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized copper(II) complex [MCM-41-2N-Cu(OAc)₂] was easily prepared from com. available and inexpensive 3-(2-aminoethylamino)propyltrimethoxysilane via immobilization on MCM-41, followed by reaction with copper(II) acetate and characterized by various physico-chem. techniques. It was found that this heterogeneous copper complex is a highly efficient catalyst for the tandem oxidative annulation of amidine hydrochlorides RC(=NH)NH₂·HCl (R = Me, 4-fluorophenyl, cyclopropyl, 2-pyridinyl, etc.) and methylarenes ArCH₃ (Ar = 3,4-dichlorophenyl, 1-naphthyl, 3-thienyl, 4-pyridinyl, etc.) with tert-Bu hydroperoxide as oxidant to give 3,5-disubstituted 1,2,4-oxadiazoles I and can be reused at least eight consecutive trials with almost consistent activity. In the experiment, the researchers used many compounds, for example, 2-Chloro-benzamidine hydrochloride (cas: 18637-02-0Formula: C7H8Cl2N2).

2-Chloro-benzamidine hydrochloride (cas: 18637-02-0) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Formula: C7H8Cl2N2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Organic sulfur compounds. XXII. 2,5-Diaryl-1,6,6aS(super IV)trithia-3,4-diazapentalenes was written by Derocque, Jean Luc;Perrier, Michel;Vialle, Jean. And the article was included in Bulletin de la Societe Chimique de France in 1968.Quality Control of 2-Chloro-benzamidine hydrochloride This article mentions the following:

Ureas RNHC(:NR1)SMe(Ia) → R1NHC(:NR)SMe(Ib) are treated with P2S5 to give II compounds; the II are treated with NH3 to give IIIa → IIIb which are oxidized to amides IVa → IVb. Thus, BzNHCONHBz, m. 219°, and the following I are prepared according to known methods (R, R1, and m.p. given): Bz, Bz, 148°; p-ClC6H4CO, p-ClC6H4CO, 182°; p-MeOC6H4CO, p-MeOC6H4CO, 164°; H, Bz, – (methosulfate m. 160°); Bz, o-ClC6H4CO, 173°; Bz, p-ClC6H4CO, 164°; Bz, p-MeOC6H4CO, 144°; Bz, tert-BuCO, 109°. A mixture of I (R = R1 = Bz) and P2S5, 2:1 P2S5-I weight ratio is refluxed 0.5 hr. in xylene to give 60% 2,5-diphenyl-1,6,-6aSIV-trithia-3,4-diazepentalene (V), m. 211°. Similarly prepared are the following II (R, R1, m.p., and % yield given): p-ClC6H4, p-ClC6H4, 215°, 55; p-MeOC6H4, p-MeOC6H4, 232°, 55; Ph, o-ClC6H4, 184°, 45; Ph, p-ClC6H4, 181°, 50; Ph, p-MeOC6H4, 179°, 60; Ph, tert-Bu, 109°, 40. A solution of V in a 50:50 C6H6-alc. mixture is boiled and NH3 introduced 4-5 hrs. to give N-(3-phenyl-1,2,4-thiadiazol-5-yl)thiobenzimidic acid (VI), m. 198°. Similarly prepared are (m.p. given): III (R = R1 = p-ClC6H4), 227°; IIIa (R = Ph, R1 = o-ClC6H4), 209°; IIIb (R = Ph, R1 = o-ClC6H4), 83°; IIIa (R = Ph, R1 = p-ClC6H4), 190°; IIIb (R = Ph, R1 = p-ClC6H4), 215°. A solution of VI in a 50:50 HOAc-Me2CO mixture containing water is treated with Hg(OAc)2, [1:1 Hg(OAc)2-VI weight ratio] and the mixture is agitated overnight to give 60% N-(4-phenyl-1,3,5-thiadiazol-2-yl)benzamide (VII), m. 172°. 3-Phenyl-5-amino-1,2,4-thiadiazole is treated with BzCl to give 55% VII. Similarly prepared are [m.p., % yield Hg(OAc)2 method, and % yield aroylation method given]: IVa (R = Ph, R1 = o-ClC6H4), 166°, 60, 50; IVb (R = Ph, R1 = o-ClC6H4), 180°, 60, 80; IVa (R = Ph, R1 = p-ClC6H4), 266°, 60, 65; IVb (R = Ph, R1 = p-ClC6H4), 244°, 60, 75. In the experiment, the researchers used many compounds, for example, 2-Chloro-benzamidine hydrochloride (cas: 18637-02-0Quality Control of 2-Chloro-benzamidine hydrochloride).

2-Chloro-benzamidine hydrochloride (cas: 18637-02-0) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Quality Control of 2-Chloro-benzamidine hydrochloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electrochemical synthesis of CNTs-Zn: ZnO@SDS/PEG@Ni₂P nanocomposite and its application for ultrasound-assisted removal of methylene blue and investigation of its antibacterial property was written by Zalipour, Ziba;Lashanizadegan, Asghar;Sadeghfar, Fardin;Ghaedi, Mehrorang;Asfaram, Arash;Sadegh, Fatemeh. And the article was included in Environmental Nanotechnology, Monitoring and Management in 2022.Formula: C16H18ClN3S This article mentions the following:

In this research, carbon nanotubes modified with CNTs-Zn: ZnO@SDS/PEG@Ni₂P nanocomposite (NCs) were applied for removal of methylene blue (MB) following its characterization by XRD, FESEM, and EDS-mapping techniques. Using central composite design (CCD), the relationship between operational parameters like sonication time (1 to 5 min), adsorbent mass (0.1 to 0.2 g), pH (3 to 11), and initial MB concentration (2 to 10 mg L^-1) on the efficiency of the understudy system was optimized, and the maximum removal percentage of (100%) was found at 4.0 min sonication, 4 mg L^-1 MB, 0.01 g of adsorbent, and pH = 9.0. The fitting of exptl. equilibrium data reveals that the Langmuir model (R2 = 0.995) is well suited for evaluating and representing the current adsorption system’s actual behavior. Kinetic analyses that match exptl. data at different periods show the pseudo-second-order model’s (R2 = 0.998) usefulness for properly describing exptl. data. Also, Pos. ΔH° and ΔS° readings, as well as neg. ΔG° values, imply an endothermic, phys., and spontaneous activity. The adsorbent’s reusability was also tested over six periods, with a minor decline in adsorbent capacity. In addition, this substance was tested in vitro for antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) bacteria, addition, candida Albicans (C. Albicans) yeast, while exptl. results support the high efficiency of this composite for cleaning and safety improvement of water quality following its application as high-efficiency adsorbent. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Formula: C16H18ClN3S).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Formula: C16H18ClN3S

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and biological evaluation of novel 5(H)-phenanthridin-6-ones, 5(H)-phenanthridin-6-one diketo acid, and polycyclic aromatic diketo acid analogs as new HIV-1 integrase inhibitors was written by Patil, Shivaputra;Kamath, Shantaram;Sanchez, Tino;Neamati, Nouri;Schinazi, Raymond F.;Buolamwini, John K.. And the article was included in Bioorganic & Medicinal Chemistry in 2007.Quality Control of 3-Cyanobenzoyl chloride This article mentions the following:

A new series of phenanthridinone derivatives, and diketo acid analogs, as well as related phenanthrene and anthracene diketo acids have been synthesized and evaluated as HIV integrase (IN) inhibitors. Several new β-diketo acid analogs with the phenanthridinone scaffold replaced by phenanthrene, anthracene or pyrene exhibited the highest IN inhibitory potency. There is a general selectivity against the integrase strand transfer step. The most potent IN was 2,4-dioxo-4-phenanthren-9-yl-butyric acid (27f) with an IC₅₀ of 0.38 μM against integrase strand transfer. The phenanthrene diketo acids 27d-f were more potent (IC₅₀ = 2.7-0.38 μM) than the corresponding phenanthridinone diketo acid 16 (IC₅₀ = 65 μM), suggesting that the polar amide bridge in the phenanthridinone system decreases inhibitory activity relative to the more lipophilic phenanthrene system. This might have to do with the possible binding of the aryl group of the compounds binding to a lipophilic pocket at the integrase active site as suggested by the docking simulations. Mol. modeling also suggested that effectiveness of chelation of the active site Mg²⁺ contributes to IN inhibitory potency. Finally, some of the potent compounds inhibited HIV-1 replication in human peripheral blood mononuclear cells (PBMC) with EC₅₀ down to 8 μM for phenanthrene-3-(2,4-dioxo)butyric acid (27d), with a selectivity index of 10 against PBMCs. In the experiment, the researchers used many compounds, for example, 3-Cyanobenzoyl chloride (cas: 1711-11-1Quality Control of 3-Cyanobenzoyl chloride).

3-Cyanobenzoyl chloride (cas: 1711-11-1) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Quality Control of 3-Cyanobenzoyl chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

A highly efficient heterogeneous copper-catalyzed chlorodeboronation of arylboronic acids leading to chlorinated arenes was written by He, Wen;Zhang, Rongli;Cai, Mingzhong. And the article was included in RSC Advances in 2017.Reference of 18437-66-6 This article mentions the following:

A highly efficient heterogeneous copper-catalyzed chlorodeboronation of arylboronic acids with inexpensive N-chlorosuccinimide (NCS) was achieved in MeCN in the presence of 10 mol% of L-proline-functionalized MCM-41-immobilized copper(I) complex [MCM-41-L-proline-CuCl] under mild conditions, yielding a variety of aryl chlorides in excellent yields. This method proved to be tolerant of a broad range of functional groups and particularly useful for the conversion of electron-deficient arylboronic acids to aryl chlorides, a transformation that is inefficient without copper catalysis. This heterogeneous copper catalyst can be recovered by a simple filtration of the reaction solution and recycled for at least 10 times without any decreases in activity. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6Reference of 18437-66-6).

tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Reference of 18437-66-6

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Syntheses and Structures of Ag(I)-Containing Coordination Polymers and Co(II)-Containing Supramolecular Complex Based on Novel Fulvene Ligands was written by Dong, Yu-Bin;Wang, Peng;Huang, Ru-Qi;Smith, Mark D.. And the article was included in Inorganic Chemistry in 2004.Computed Properties of C8H4ClNO This article mentions the following:

Three new rigid conjugated fulvene ligands L1-L3 were synthesized. L1 and L3 were prepared by an aroylation reaction of cyclohexyl-substituted cyclopentadienyl anions. L2 was prepared by the reaction of L1 with PhNHNH₂ in hot ethanol. Six new coordination polymers, [Ag(C₂₅H₂₀N₂O₂)(ClO₄)]·3.5C₆H₆ (1), [Ag₂(μ-C₃₁H₂₄N₄)(η²-C₆H₆)(H₂O)](ClO₄)₂·(C₆H₆)·(H₂O)_0.5 (3), [Ag(C₃₁H₂₄N₄)]SbF₆·solvate (4), [Ag(C₃₁H₂₄N₄)](SbF₆)·2C₆H₆·CH₂Cl₂ (5), [Ag(C₂₅H₂₀N₂O₂)₂]SbF₆ (6), and [Ag(C₂₅H₂₀N₂O₂)₂]SbF₆ (7), and one seven-membered cobaltacycle-containing complex, Co(C₂₅H₂₀N₂O₂)₂(EtOH)₂ (2), were obtained through self-assembly based on these three new fulvene ligands. L2-L3 and compounds 1-7 were fully characterized by IR spectroscopy, elemental anal., and single-crystal x-ray diffraction. The coordination chem. of new fulvene ligands is versatile. They can bind metal ions not only through the terminal N-donors and fulvene C atoms into organometallic coordination polymers but also through the two chelating carbonyl groups into unusual seven-membered metallo-ring supramol. complexes. In the solid state, ligands L1-L3 are luminescent. A blue-shift in the emission was observed between the free ligand L1 and the one incorporated into Co(II)-containing complex 2, and a red shift in the emission was observed between the free ligand L3 and the one incorporated into Ag(I)-containing polymeric compounds 6 and 7. In the experiment, the researchers used many compounds, for example, 3-Cyanobenzoyl chloride (cas: 1711-11-1Computed Properties of C8H4ClNO).

3-Cyanobenzoyl chloride (cas: 1711-11-1) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Computed Properties of C8H4ClNO

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Construction of Dihydropyrido[2,3-d]pyrimidine Scaffolds via Aza-Claisen Rearrangement Catalyzed by N-Heterocyclic Carbenes was written by Dzieszkowski, Krzysztof;Baranska, Izabela;Rafinski, Zbigniew. And the article was included in Journal of Organic Chemistry in 2020.Quality Control of 1-(Chloromethyl)-3-methylbenzene This article mentions the following:

N-Heterocyclic carbenes (NHCs) catalyzing aza-Claisen rearrangement of α,β-unsaturated enals with cyclic vinylogous amides under oxidative conditions generating potentially biol. active dihydropyridinone-fused uracils have been developed. This strategy represents a unique NHC-activation-based path with the use of 6-aminouracils as stable α,β-diEWG cyclic vinylogous amides for the efficient synthesis of bicyclic N-unprotected lactams similar to those in many useful drugs. In the experiment, the researchers used many compounds, for example, 1-(Chloromethyl)-3-methylbenzene (cas: 620-19-9Quality Control of 1-(Chloromethyl)-3-methylbenzene).

1-(Chloromethyl)-3-methylbenzene (cas: 620-19-9) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Quality Control of 1-(Chloromethyl)-3-methylbenzene

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics