Category: chlorides-buliding-blocks

A Strained Ion Pair Permits Carbon Dioxide Fixation at Atmospheric Pressure by C-H H-Bonding Organocatalysis was written by Xu, Jiaxi;Xian, Anmei;Li, Zhenjiang;Liu, Jingjing;Zhang, Zhihao;Yan, Rui;Gao, Luoyu;Liu, Bo;Zhao, Lili;Guo, Kai. And the article was included in Journal of Organic Chemistry in 2021.Synthetic Route of C4H12ClN The following contents are mentioned in the article:

The cycloadditions of carbon dioxide into epoxides to afford cyclic carbonates by H-bond donor (HBD) and onium halide (X) cocatalysis have emerged as a key strategy for CO₂ fixation. However, if the HBD is also a halide receptor, the two will quench each other, decreasing the catalytic activity. Here, we propose a strained ion pair tris(alkylamino)cyclopropenium halide (TAC·X), in which TAC repels X. TAC possesses a pos. charged cyclopropenium core that makes the vicinal C-H or N-H a nonclassical HBD. The interionic strain within TAC·X makes TAC a more electrophilic HBD, allowing it to activate the oxygen of the epoxide and making X more nucleophilic and better able to attack the methylene carbon of the epoxide. NMR titration spectra and computational studies were employed to probe the mechanism of the cycloaddition of CO₂ to epoxides reactions under the catalysis of TAC·X. The ¹H and ¹³C{¹H}NMR titration spectra of the catalyst with the epoxide substrate unambiguously confirmed H-bonding between TAC and the epoxide. DFT computational studies identified the transition states in the ring-opening of the epoxide (TS1) and in the ring-closure of the cyclic carbonate (TS2). This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Synthetic Route of C4H12ClN).

Tetramethylammonium chloride (cas: 75-57-0) 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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Synthetic Route of C4H12ClN

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

Genome-based discovery and total synthesis of janustatins, potent cytotoxins from a plant-associated bacterium was written by Ueoka, Reiko;Sondermann, Philipp;Leopold-Messer, Stefan;Liu, Yizhou;Suo, Rei;Bhushan, Agneya;Vadakumchery, Lida;Greczmiel, Ute;Yashiroda, Yoko;Kimura, Hiromi;Nishimura, Shinichi;Hoshikawa, Yojiro;Yoshida, Minoru;Oxenius, Annette;Matsunaga, Shigeki;Williamson, R. Thomas;Carreira, Erick M.;Piel, Jorn. And the article was included in Nature Chemistry in 2022.Product Details of 7447-41-8 The following contents are mentioned in the article:

Host-associated bacteria are increasingly being recognized as underexplored sources of bioactive natural products with unprecedented chem. scaffolds. A recently identified example is the plant-root-associated marine bacterium Gynuella sunshinyii of the chem. underexplored order Oceanospirillales. Its genome contains at least 22 biosynthetic gene clusters, suggesting a rich and mostly uncharacterized specialized metabolism Here, in silico chem. prediction of a non-canonical polyketide synthase cluster has led to the discovery of janustatins, structurally unprecedented polyketide alkaloids with potent cytotoxicity that are produced in minute quantities. A combination of MS and two-dimensional NMR experiments, d. functional theory calculations of 13C chem. shifts and semiquant. interpretation of transverse rotating-frame Overhauser effect spectroscopy data were conducted to determine the relative configuration, which enabled the total synthesis of both enantiomers and assignment of the absolute configuration. Janustatins feature a previously unknown pyridodihydropyranone heterocycle and an unusual biol. activity consisting of delayed, synchronized cell death at subnanomolar concentrations [graphic not available: see fulltext] This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Product Details of 7447-41-8).

Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Product Details of 7447-41-8

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

Efficient Asymmetric Synthesis of Ethyl (S)-4-Chloro-3-hydroxybutyrate Using Alcohol Dehydrogenase SmADH31 with High Tolerance of Substrate and Product in a Monophasic Aqueous System was written by Yang, Zeyu;Ye, Wenjie;Xie, Youyu;Liu, Qinghai;Chen, Rong;Wang, Hualei;Wei, Dongzhi. And the article was included in Organic Process Research & Development in 2020.Application of 638-07-3 The following contents are mentioned in the article:

Bioredns. catalyzed by alc. dehydrogenases (ADHs) play an important role in the synthesis of chiral alcs. However, the synthesis of Et (S)-4-chloro-3-hydroxybutyrate [(S)-CHBE], an important drug intermediate, has significant challenges concerning high substrate or product inhibition toward ADHs, which complicates its production Herein, we evaluated a novel ADH, SmADH31, obtained from the Stenotrophomonas maltophilia genome, which can tolerate extremely high concentrations (6 M) of both substrate and product. The coexpression of SmADH31 and glucose dehydrogenase from Bacillus subtilis in Escherichia coli meant that as much as 660 g L^-1 (4.0 M) Et 4-chloroacetoacetate was completely converted into (S)-CHBE in a monophasic aqueous system with a >99.9% ee value and a high space-time yield (2664 g L^-1 d^-1). Mol. dynamics simulation shed light on the high activity and stereoselectivity of SmADH31. Moreover, five other optically pure chiral alcs. were synthesized at high concentrations (100-462 g L^-1) as a result of the broad substrate spectrum of SmADH31. All these compounds act as important drug intermediates, demonstrating the industrial potential of SmADH31-mediated bioredns. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Application of 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Application of 638-07-3

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

Synergetic effect between Pd²⁺ and Ir⁴⁺ species promoting direct ethane dehydrogenation into ethylene over bimetallic PdIr/AC catalysts was written by Zhang, Ling;Sun, Jikai;Jiang, Shuchao;He, Huijie;Ren, Guoqing;Zhai, Dong;Tu, Rui;Zhai, Shengliang;Yu, Tie. And the article was included in Catalysis Science & Technology in 2022.Electric Literature of Cl4Na2Pd The following contents are mentioned in the article:

This work reported an efficient PdIr/activated carbon (PdIr/AC) catalyst and its application during direct ethane dehydrogenation (EDH) into ethane. The XRD and HADDF-STEM results revealed Pd/Ir nano-particles and atomically dispersed Pd²⁺ and Ir⁴⁺ species simultaneously. The activity tests demonstrated that Ir species showed higher C₂H₄ selectivity than Pd species and the co-presence of Pd/Ir could further improve the catalytic stability and inhibit carbon deposition over the bimetallic Pd/Ir catalyst. Nevertheless, raising the reaction temperature from 500°C to 600°C boosted coking including carbon nanotubes (CNTs) and carbon particles. XPS results of Pd7Ir2/AC-B after Ar or H₂ pretreatment proved that the active sites are Pd²⁺/Ir⁴⁺ species. The simulation results exposed the reaction pathway over Ir⁴⁺/Pd²⁺ species, and ethane dehydrogenation was the rate-determining step over the PdIr/AC sample; meanwhile, the synergetic effect between Pd²⁺ and Ir⁴⁺ increased their TOF (C₂H₄). Finally, a deactivation mechanism was also proposed to examine the coking over various metal species. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Electric Literature of Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Electric Literature of Cl4Na2Pd

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

Novel chalcone-conjugated, multi-flexible end-group coumarin thiazole hybrids as potential antibacterial repressors against methicillin-resistant Staphylococcus aureus was written by Hu, Yuanyuan;Hu, Chunfang;Pan, Guangxing;Yu, Congwei;Ansari, Mohammad Fawad;Yadav Bheemanaboina, Rammohan R.;Cheng, Yu;Zhou, Chenghe;Zhang, Jiaheng. And the article was included in European Journal of Medicinal Chemistry in 2021.Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate The following contents are mentioned in the article:

The increasing resistance of methicillin-resistant Staphylococcus aureus (MRSA) to antibiotics has led to a growing effort to design and synthesize novel structural candidates of chalcone-conjugated, multi-flexible end-group coumarin thiazole hybrids with outstanding bacteriostatic potential. Bioactivity screening showed that hybrid 5i, which was modified with methoxybenzene, exerted a significant inhibitory activity against MRSA (MIC = 0.004 mM), which was 6 times better than the anti-MRSA activity of the reference drug norfloxacin (MIC = 0.025 mM). Compound 5i neither conferred apparent resistance onto MRSA strains even after multiple passages nor triggered evident toxicity to human hepatocyte LO2 cells and normal mammalian cells (RAW 264.7). Mol. docking showed that highly active mol. 5i might bind to DNA gyrase by forming stable hydrogen bonds. In addition, mol. electrostatic potential surfaces were developed to explain the high antibacterial activity of the target compounds Furthermore, preliminary mechanism studies suggested that hybrid 5i could disrupt the bacterial membrane of MRSA and insert itself into MRSA DNA to impede its replication, thus possibly becoming a potential antibacterial repressor against MRSA. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Application In Synthesis of Ethyl 4-chloro-3-oxobutanoate

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

New scaffolds of inhibitors targeting the DNA binding of NF-κB was written by Kobayashi, Takanobu;Tanuma, Sei-ich;Kino, Katsuhito;Miyazawa, Hiroshi. And the article was included in Integrative Molecular Medicine in 2016.Safety of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine The following contents are mentioned in the article:

Nuclear factor-kappa B (NF-κB) has numerous pathophysiol. functions and is therefore considered a suitable target in the search for drugs to treat many diseases, including cancers and inflammatory diseases. We previously reported a novel triazine-based NF-κB inhibitor, 4,6-dichloro-N-phenyl-1,3,5-triazin-2-amine (NI241), which directly inhibits binding of NF-κB to DNA. We predicted the mode of binding between NI241 and p50 (a member of NF-κB family) using in silico docking simulations. Here, we searched for new NF-κB inhibitors using structure-based virtual screening (SBVS), a computational method widely used to identify candidate compounds in drug discovery. In the present study, we performed SBVS with the docking simulation program Glide and selected 33 compounds from our virtual chem. library. Subsequently, we investigated the NF-κB inhibitory effects of these compounds using electrophoretic mobility shift assays. We identified two compounds that inhibited the DNA binding of p50. Although these compounds were less effective than NI241 as NF-κB inhibitors, they have new scaffold structures and provide clues that will aid future efforts to identify novel compounds that specifically inhibit the binding of NF-κB to DNA. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Safety of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Safety of 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine

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

The modification of wool with reactive hydrophobes was written by Lewis, D. M.;Pailthorpe, M. T.. And the article was included in Journal of the Society of Dyers and Colourists in 1984.COA of Formula: C9H6Cl2N4 The following contents are mentioned in the article:

Of 7 reactive hydrophobic compounds synthesized and applied as aqueous dispersions to wool by pad-dry-steam or exhaustion procedures, 2 imparted significant disperse dye affinity to the wool, namely 6-anilino-2,4-dichloro-s-triazine (I) [2272-40-4] and 6-(1-naphthylamino)-2,4-dichloro-s-triazine (II) [30369-88-1]. For I a weight gain of 12.7% was achieved by exhaustion and 11% by padding. The ISO2 washfastness rating for the dyes examined increased from <1 to 4 and there was a slight improvement in lightfastness. With II a weight gain of 8.9% was achieved with the standard exhaustion recipe. While washfastness rating were satisfactory, II had an adverse effect on lightfastness of the dyes. I-treated wool had an affinity for disperse dyes equivalent to that of benzoylated wool of similar weight gain; however, the application of I caused significantly less yellowing than the benzoylation process. Thus, 100% wool and 60:40 wool-polyester blends were dyed satisfactory with disperse dyes in the presence of I to achieve good washfastness ratings. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4COA of Formula: C9H6Cl2N4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.COA of Formula: C9H6Cl2N4

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

Synthesis of ethyl (R)-4-chloro-3-hydroxybutyrate by immobilized cells using amino acid-modified magnetic nanoparticles was written by Lu, Yuan;Dai, Hongqian;Shi, Hanbing;Tang, Lan;Sun, Xingyuan;Ou, Zhimin. And the article was included in Process Biochemistry (Oxford, United Kingdom) in 2020.Formula: C6H9ClO3 The following contents are mentioned in the article:

Fe₃O₄-Arg was selected as the optimal carrier due to its high activity recovery of immobilized cells in the preparation of Fe₃O₄-Arg-Cells. The optimal immobilization conditions for the preparation of Fe₃O₄-Arg-Cells were 30°C, 4 h, pH 7, and 3 g dry yeast. The activity recovery of immobilized cells reached 76.8%. For a batch reduction in a shaker in an alternating magnetic field, Fe₃O₄-Arg-Cells were used as a catalyst to gain Et (R)-4-chloro-3-hydroxybutyrate ((R)-CHBE). For further improvement in reduction productivity, a continuous reduction in the magnetic fluidized bed reactor system (MFBRS) was completed. Under their optimal transformation conditions, it took 24 h for Fe₃O₄-Arg-Cells to complete the conversion of Et 4-chloro-3-oxobutanoate (COBE) (0.8553 mol/L) in the shaker and only 8 h for the batch reduction in an alternating magnetic field. Continuous reduction in MFBRS provided new ideas for the efficient production of (R)-CHBE; 1.5882 mol/L (10 mL) of COBE can be completely converted in 6 h. The conversion and enantiomeric excess (e.e.) of (R)-CHBE were 100% and above 99.9% resp., in the three reaction systems mentioned above. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Formula: C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) 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.Formula: C6H9ClO3

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

A recovery strategy of Sm, Co for waste SmCo magnets by fatty acid based ionic liquids was written by Chen, Qianwen;Ni, Shuainan;Ai, Guanghua;Zhang, Tao;Sun, Xiaoqi. And the article was included in Minerals Engineering in 2020.Related Products of 5137-55-3 The following contents are mentioned in the article:

Cleaner and lower-cost recovery and separation of samarium(III) and cobalt(II) from waste SmCo magnets can effectively alleviate supply risks of the strategic metals. Based on this goal, a family of renewable, low-cost, biocompatible, non-toxic fatty acid-based ionic liquids (FAILs), including [N1888][DA], [N1888][LA] and [N1888][PA] were synthesized and developed for the separation of Sm(III)/Co(II) from samarium-cobalt simulated solution The effect factors, i.e. equilibrium time, FAIL molar concentration, salting-out agent concentration and initial pH of aqueous solution were investigated. The extraction mechanism was proposed to be ion association by slope anal. and FT-IR. Under the optimized extraction conditions, a higher purity CoCl₂ (99.5%) product was obtained by a simple extraction-stripping-washing process with the consumption of Na₂C₂O₄ and NH₃·H₂O. The produced salty wastewater with lower concentration from the process could be recycled. Sm2O3 with a purity of 99% were obtained by roasting the Sm₂(C₂O₄)₃ at 800°C for two hours. The whole process was simple and sustainable, illustrating its potential for industrial applications. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Related Products of 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Related Products of 5137-55-3

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

Bent-core liquid crystal-functionalised flexible polymer substrates for liquid crystal alignment was written by Sivaranjini, B.;Ganesh, V.;Umadevi, S.. And the article was included in Liquid Crystals in 2020.HPLC of Formula: 95-88-5 The following contents are mentioned in the article:

A transparent flexible polymer film is chem. functionalised with a bent-core liquid crystal (BCLC) compound for effective alignment of the bulk BCLC sample at the substrate-LC interface. The surface attachment was achieved via a simple procedure which involved pre-treatment of the polymer film (com. name: over head projector film) using piranha solution followed by chem. attaching the BCLC compound through silane condensation reaction. Surface characterization of the unmodified and BC-modified flexible films was carried out through XPS, attenuated total reflectance fourier transform IR (ATR-FTIR) spectroscopy, contact angle (CA) and at. force microscopy (AFM) techniques. The BC-modified flexible substrates are analyzed for their efficiency to orient the bulk LC sample. Remarkably, the chem. modified polymer substrates are highly efficient in vertically aligning both the BC and rod-like LC samples at the substrate-LC interface, in comparison to their unmodified counterparts. The described method is simple, reproducible, surface modified substrates are highly stable and more importantly reusable. The demonstrated method for the alignment of BCLCs advances a step forward towards the realization of applications proposed for these fascinating compounds This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5HPLC of Formula: 95-88-5).

4-Chlororesorcinol (cas: 95-88-5) 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.HPLC of Formula: 95-88-5

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