Tag: 200-300

Rh(III)-catalyzed oxidative C-H activation/domino annulation of anilines with 1,3-diynes: a rapid access to blue-emitting tricyclic N,O-heteroaromatics was written by Qian, Shengyou;Pu, Xingwen;Chang, Guanjun;Huang, Ying;Yang, Yudong. And the article was included in Organic Letters in 2020.Safety of tert-Butyl (4-chlorophenyl)carbamate This article mentions the following:

Disclosed herein is a rhodium-catalyzed oxidative C-H activation/domino annulation of N-Boc-anilines with 1,3-diynes for the construction of tricyclic N,O-heteroaromatics This reaction features easily available substrates, mild reaction conditions, high regioselectivity, mono/diannulation selectivity, and intra/intermol. annulation selectivity. Moreover, this synthetic protocol enables the rapid assembly of a library of blue-emitting mols. with high quantum yields, among of which two fluorophores with pure blue-emission in toluene are discovered. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6Safety of tert-Butyl (4-chlorophenyl)carbamate).

tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Safety of tert-Butyl (4-chlorophenyl)carbamate

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

Design and bio-evaluation of indole derivatives as potent Kv1.5 inhibitors was written by Guo, Xiaoke;Yang, Qian;Xu, Jing;Zhang, Li;Chu, Hongxi;Yu, Peng;Zhu, Yingying;Wei, Jinglian;Chen, Weilin;Zhang, Yaozhong;Zhang, Xiaojin;Sun, Haopeng;Tang, Yiqun;You, Qidong. And the article was included in Bioorganic & Medicinal Chemistry in 2013.COA of Formula: C10H13ClO3S This article mentions the following:

Atrial fibrillation (AF) is one of the common arrhythmias that threaten human health. Kv1.5 potassium channel is reported as an efficacious and safe target for the treatment of AF. In this paper, we designed and synthesized three series of compounds through modifying the lead compound RH01617 that was screened out by the pharmacophore model we reported earlier. All of the compounds were evaluated by the whole-patch lamp technol. and most of them possessed potent inhibitory activities against Kv1.5. Two of the compounds were evaluated for the target selectivity as well as the pharmacodynamic effects in an isolated rat model. Due to the promising pharmacol. behavior, one compound deserves further pharmacodynamic and pharmacokinetic evaluations. In the experiment, the researchers used many compounds, for example, 4-Butoxybenzene-1-sulfonyl chloride (cas: 1138-56-3COA of Formula: C10H13ClO3S).

4-Butoxybenzene-1-sulfonyl chloride (cas: 1138-56-3) 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.COA of Formula: C10H13ClO3S

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

Potent Reductants via Electron-Primed Photoredox Catalysis: Unlocking Aryl Chlorides for Radical Coupling was written by Cowper, Nicholas G. W.;Chernowsky, Colleen P.;Williams, Oliver P.;Wickens, Zachary K.. And the article was included in Journal of the American Chemical Society in 2020.SDS of cas: 18437-66-6 This article mentions the following:

We describe a new catalytic strategy to transcend the energetic limitations of visible light by electrochem. priming a photocatalyst prior to excitation. This new catalytic system is able to productively engage aryl chlorides with reduction potentials hundreds of millivolts beyond the potential of Na⁰ in productive radical coupling reactions. The aryl radicals produced via this strategy can be leveraged for both carbon-carbon and carbon-heteroatom bond-forming reactions. Through direct comparison, we illustrate the reactivity and selectivity advantages of this approach relative to electrolysis and photoredox catalysis. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6SDS of cas: 18437-66-6).

tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) 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.SDS of cas: 18437-66-6

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

The role of CuO/TS-1, ZnO/TS-1, and Fe₂O₃/TS-1 on the desalination performance and antifouling properties of thin-film nanocomposite reverse osmosis membranes was written by Bakhodaye Dehghanpour, Safoura;Parvizian, Fahimeh;Vatanpour, Vahid. And the article was included in Separation and Purification Technology in 2022.Related Products of 4422-95-1 This article mentions the following:

The thin-film nanocomposite reverse osmosis (TFN-RO) membranes were prepared by the introduction of hydrophilic nanoparticles into the polyamide (PA) layer to improve desalination performance. First, the hydrothermal method was used to synthesize titanium silicate-1 (TS-1) as a base additive for the fabrication of the TFN-RO membrane. Since the particle size has a significant effect on its dispersion in the membrane matrix, changing the nucleation rate of TS-1 precursor solution with a simple method conducted to reduce the size of TS-1. Then metal oxide composites were prepared via the wet impregnation method. FESEM and AFM analyses were performed to investigate the surface alteration of the membranes due to the introduction of nanoparticles. The results showed that the surface of the TFN membranes was smoother than the unmodified one. To assess the changes in membrane properties after incorporating additives, the water contact angle, and zeta potential were measured. Compared to TFC, the 0.02TS1-Fe-TFN membrane had a ∼ 30% increase in pure water flux. Meanwhile, the rejection of NaCl increased from ∼ 95% to ∼ 99%. The probing of antifouling performance using bovine albumin serum (BSA) and humic acid (HA) contaminants also showed that due to reduced roughness, the modified membranes had higher fouling resistance than TFC. Also, the TFN membranes exhibited good long-term and pH stability. In the experiment, the researchers used many compounds, for example, Trimesoylchloride (cas: 4422-95-1Related Products of 4422-95-1).

Trimesoylchloride (cas: 4422-95-1) 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.Related Products of 4422-95-1

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

NX···Y halogen bonds. Comparison with NH···Y H-bonds and CX···Y halogen bonds was written by Nepal, Binod;Scheiner, Steve. And the article was included in Physical Chemistry Chemical Physics in 2016.SDS of cas: 14070-51-0 This article mentions the following:

Quantum calculations examine how the NH···Y H-bond compares to the equivalent NX···Y halogen bond, as well as to comparable CH/CX donors. Succinimide and saccharin, and their corresponding halogen-substituted derivatives, are chosen as the prototype NH/NX donors, paired with a wide range of electron donor mols. The NH···Y H-bond is weakened if the bridging H is replaced by Cl, and strengthened by I; a Br halogen bond is roughly comparable to a H-bond. The lone pairs of the partner mol. are stronger electron donors than are π-systems. Whereas Coulombic forces represent the largest fraction of the attractive force in the H-bonds, induction energy is magnified in the halogen bonds, surpassing electrostatics in several cases. Mutation of NH/NX to CH/CX weakens the binding energy to roughly half its original value, while also lengthening the intermol. distances by 0.3-0.8 Å. In the experiment, the researchers used many compounds, for example, 2-Chlorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (cas: 14070-51-0SDS of cas: 14070-51-0).

2-Chlorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (cas: 14070-51-0) 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.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.SDS of cas: 14070-51-0

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

Synthesis and potent antimicrobial activity of some novel methyl or ethyl 1H-benzimidazole-5-carboxylates derivatives carrying amide or amidine groups was written by Oezden, Seckin;Atabey, Dilek;Yildiz, Sulhiye;Goeker, Hakan. And the article was included in Bioorganic & Medicinal Chemistry in 2005.SDS of cas: 16588-16-2 This article mentions the following:

A series of benzimidazole-5-carboxylic acid alkyl ester derivatives, e.g., I, carrying amide or amidine substituted Me or Ph groups at the position C-2 were synthesized and evaluated for antibacterial and antifungal activities against S. aureus, methicillin resistant S. aureus (MRSA), S. faecalis, methicillin resistant S. epidermidis (MRSE), E. coli and C. albicans. The results showed that all simple acetamides were essentially inactive, while aromatic amides and amidines have potent antibacterial activities. The aromatic amidine derivatives exhibited the best inhibitory activity with 1.56-0.39 μg/mL MIC values against MRSA and MRSE. In the experiment, the researchers used many compounds, for example, Ethyl 4-chloro-3-nitrobenzoate (cas: 16588-16-2SDS of cas: 16588-16-2).

Ethyl 4-chloro-3-nitrobenzoate (cas: 16588-16-2) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. 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.SDS of cas: 16588-16-2

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

New phorbol ester derivatives as potent anti-HIV agents was written by Li, Qi-Run;Cheng, Yung-Yi;Zhao, Lei;Huang, Xiao-Lei;Jiang, Xiao-Gang;Cui, Ya-Dong;Morris-Natschke, Susan L.;Goto, Masuo;Chen, Chin-Ho;Lee, Kuo-Hsiung;Chen, Dao-Feng;Zhang, Jian. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2021.Recommanded Product: (Chloromethanetriyl)tribenzene This article mentions the following:

Tigliane esters show many biol. activities, including anti-HIV-1 activity. Our aim in this study was to establish structure-anti-HIV activity relationships for four series of tigliane-type diterpenoids. We synthesized and evaluated 29 new phorbol ester derivatives for anti-HIV activity and for cytotoxicity against human tumor cell lines. Among them, three derivatives, two phorbol-13-monoesters (5d and 5e) and a phorbol-12,13-diester (6a), showed significant anti-HIV activity. We found that better anti-HIV activity was often associated with a shorter acyl ester at C-13. Particularly, compounds with a Ph ring in the ester side chain exhibited excellent anti-HIV activity and had good safety indexes. Due to its significant anti-HIV potency with a high selectivity index, phorbol-12,13-dicinnamoate (6a) was chosen as the potential candidate for further preclin. trials. In the experiment, the researchers used many compounds, for example, (Chloromethanetriyl)tribenzene (cas: 76-83-5Recommanded Product: (Chloromethanetriyl)tribenzene).

(Chloromethanetriyl)tribenzene (cas: 76-83-5) 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. 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).Recommanded Product: (Chloromethanetriyl)tribenzene

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

Sodium iodide as a novel, chemoselective and highly efficient catalyst for N-tert-butoxy carbonylation of amines at room temperature was written by Periyasamy, Senthil;Subbiah, Selvaraj. And the article was included in Journal of Chemical and Pharmaceutical Research in 2016.COA of Formula: C11H14ClNO2 This article mentions the following:

Com. available sodium iodide was found to be one of the best catalyst and practically an efficient protocol for the protection of various structurally and electronically divergent aryl and aliphatic amines using (BOC)₂O at room temperature was presented. The reported method is chemoselective and the products isolated in high yields. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6COA of Formula: C11H14ClNO2).

tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) 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.COA of Formula: C11H14ClNO2

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

In vivo and in vitro reconstitution of unique key steps in cystobactamid antibiotic biosynthesis was written by Gross, Sebastian;Schnell, Bastien;Haack, Patrick A.;Auerbach, David;Mueller, Rolf. And the article was included in Nature Communications in 2021.Reference of 76-83-5 This article mentions the following:

Abstract: Cystobactamids are myxobacteria-derived topoisomerase inhibitors with potent anti-Gram-neg. activity. They are formed by a non-ribosomal peptide synthetase (NRPS) and consist of tailored para-aminobenzoic acids, connected by a unique α-methoxy-L-isoasparagine or a β-methoxy-L-asparagine linker moiety. We describe the heterologous expression of the cystobactamid biosynthetic gene cluster (BGC) in Myxococcus xanthus. Targeted gene deletions produce several unnatural cystobactamids. Using in vitro experiments, we reconstitute the key biosynthetic steps of linker formation and shuttling via CysB to the NRPS. The biosynthetic logic involves a previously uncharacterized bifunctional domain found in the stand-alone NRPS module CysH, albicidin biosynthesis and numerous BGCs of unknown natural products. This domain performs either an aminomutase (AM) or an amide dehydratase (DH) type of reaction, depending on the activity of CysJ which hydroxylates CysH-bound L-asparagine. Furthermore, CysQ O-methylates hydroxyl-L-(iso)asparagine only in the presence of the AMDH domain. Taken together, these findings provide direct evidence for unique steps in cystobactamid biosynthesis. In the experiment, the researchers used many compounds, for example, (Chloromethanetriyl)tribenzene (cas: 76-83-5Reference of 76-83-5).

(Chloromethanetriyl)tribenzene (cas: 76-83-5) 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. 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 76-83-5

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

Selective Defluoroallylation of Trifluoromethylarenes was written by Luo, Chaosheng;Bandar, Jeffrey S.. And the article was included in Journal of the American Chemical Society in 2019.Computed Properties of C7H4ClF3O2S This article mentions the following:

The authors report a fluoride-initiated coupling reaction between trifluoromethylarenes and allylsilanes to access allylated α,α-difluorobenzylic compounds This method’s utility is demonstrated through a 30 mmol scale reaction, a sequential allylation/derivatization protocol and multiple examples of site-selective trifluoromethylarene allylation. Initial mechanistic studies suggest a base-induced single electron transfer pathway is responsible for the high efficiency and selectivity of this novel C-F substitution process. In the experiment, the researchers used many compounds, for example, 3-(Trifluoromethyl)benzene-1-sulfonyl chloride (cas: 777-44-6Computed Properties of C7H4ClF3O2S).

3-(Trifluoromethyl)benzene-1-sulfonyl chloride (cas: 777-44-6) 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 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.Computed Properties of C7H4ClF3O2S

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