Category: 111-24-0

Quality Control of 1,5-Dibromopentane. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Chemically stable poly(meta-terphenyl piperidinium) with highly conductive side chain for alkaline fuel cell membranes. Author is Lu, Chuanrui; Long, Chuan; Li, Yunxi; Li, Ziming; Zhu, Hong.

Poly(arylene piperidine)s (PAPs) backbones, which do not contain unstable ether bonds, was synthesized by one-pot, metal-free superacid-catalyzed polymerization for anion exchange membranes (AEMs) preparation Meta-terphenyl as a monomer of polymer to regulate the morphol. and properties of AEM was also used due to its spatially torsional configuration instead of the recently reported linear structure of meta-terphenyl. Long flexible hydrophilic chains were grafted onto poly(meta terphenyl piperidinium) (m-PTP) backbone to form four cationic functionalized side chains, promoting efficient transfer of OH- and optimizing the hydrophilic/hydrophobic microphase separation structure. The resulting AEM shows a high ion conductivity of 164 mS/cm (m-PTP-TFPE-21) at 80°C. Furthermore, stable piperidine cation and long alkyl spacer chain contributed to the excellent alkali stability of m-PTP-TFPE-TQA membrane which shows only 11.67% and 12.73% degradation in ion conductivity and IEC, resp., after soaking in 2 M NaOH at 80°C for 1500 h. The peak power d. of the H2/O2 single cell using m-PTP-TFPE-14 is 269 mW/cm2 at a c.d. of 540 mA/cm2 at 80°C.

Here is just a brief introduction to this compound(111-24-0)Quality Control of 1,5-Dibromopentane, more information about the compound(1,5-Dibromopentane) is in the article, you can click the link below.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Formula: C5H10Br2. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Synthesis and biological evaluation of thiazolidinedione derivatives of chalcones and flavones as antihyperglycemic and antidyslipidemic agents. Author is Satyanarayana, Mavurapu; Shukla, Poonam; Tripathi, Brajendra K.; Tiwari, Priti; Srivastava, Arvind K.; Pratap, Ram.

A series of chalcone and flavone derivatives I [R1 = 4-MeOC6H4, 1,3-benzodioxol-5-yl; n = 2, 3] II [R = 3,5-di-OCH2Ph, 3,4-di-OCH2Ph, 3,4,5-tri-MeO, 3,4-di-MeO, 3,5-di-MeO; n = 1, 2] based on 2,4-thiazolidinedione had been synthesized and evaluated for in vivo antihyperglycemic activity in sucrose loaded (SLM) and streptozotocin (STZ) induced diabetic animal models and also for antidyslipidemic activity in the triton model. Compounds II [R = 3,4,5-tri-MeO, 3,4-di-MeO, 3,5-di-MeO; n = 2] exhibited potent blood glucose-lowering activity in both SLM and STZ models. Compounds I [R1 = 1,3-benzodioxol-5-yl; n = 3], and II [R = 3,4,5-tri-MeO, 3,4-di-MeO, 3,5-di-MeO; n = 1, 2] showed moderate lipid-lowering activity. The selected most potent compounds I [R1 = 1,3-benzodioxol-5-yl; n = 3] and II [R = 3,4,5-tri-MeO; n = 2] were also studied in db/db mice for both antihyperglycemic and antidyslipidemic activity.

Here is just a brief introduction to this compound(111-24-0)Formula: C5H10Br2, more information about the compound(1,5-Dibromopentane) is in the article, you can click the link below.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 111-24-0, is researched, SMILESS is BrCCCCCBr, Molecular C5H10Br2Journal, Indian Journal of Heterocyclic Chemistry called Microwave-assisted synthesis of quinazolines linked with 1,8-naphthalimide, chromene derivatives and their antimicrobial activity, Author is Ashok, D.; Ramakrishna, Katta; Nagaraju, Nalaparaju; Dharavath, Ravinder; Reddy, M. Ram; Sarasija, M., the main research direction is quinazoline preparation antibacterial antifungal green chem microwave.SDS of cas: 111-24-0.

The synthesis of several quinazolines containing 1,8-naphthalimide and chromene moieties under conventional and microwave irradiation methods has been reported. The microwave irradiation gave higher yields, shorter reaction time as compared to conventional heating method using green solvents, eco-friendly reaction conditions. Furthermore, the titled compounds were screened for their in vitro antimicrobial activity against bacterial strains such as Staphylococcus aureus, Bacillus subtilis, Klebsiella pneumoniae, and Escherichia coli as well as fungi such as Aspergillus niger, Aspergillus flavus, and Fusarium oxysporum. Compounds exhibited promising antimicrobial activity.

Here is just a brief introduction to this compound(111-24-0)SDS of cas: 111-24-0, more information about the compound(1,5-Dibromopentane) is in the article, you can click the link below.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Ionic polyureas-a novel subclass of poly(ionic liquid)s for CO2 capture》. Authors are Morozova, Sofia M.; Lozinskaya, Elena I.; Sardon, Haritz; Suarez-Garcia, Fabian; Vlasov, Petr S.; Vaudemont, Regis; Vygodskii, Yakov S.; Shaplov, Alexander S..The article about the compound:1,5-Dibromopentanecas:111-24-0,SMILESS:BrCCCCCBr).SDS of cas: 111-24-0. Through the article, more information about this compound (cas:111-24-0) is conveyed.

The growing concern for climate change and global warming has given rise to investigations in various research fields, including one particular area dedicated to the creation of solid sorbents for efficient CO2 capture. In this work, a new family of poly(ionic liquid)s (PILs) comprising cationic polyureas (PURs) with tetrafluoroborate (BF4) anions has been synthesized. Condensation of various diisocyanates with novel ionic diamines and subsequent ion metathesis reaction resulted in high molar mass ionic PURs (Mw = 12 ÷ 173 x 103 g/mol) with high thermal stability (up to 260 °C), glass transition temperatures in the range of 153-286 °C and remarkable CO2 capture (10.5-24.8 mg/g at 0 °C and 1 bar). The CO2 sorption was found to be dependent on the nature of the cation and structure of the diisocyanate. The highest sorption was demonstrated by tetrafluoroborate PUR based on 4,4′-methylene-bis(cyclohexyl isocyanate) diisocyanate and aromatic diamine bearing quinuclidinium cation (24.8 mg/g at 0 °C and 1 bar). It is hoped that the present study will inspire novel design strategies for improving the sorption properties of PILs and the creation of novel effective CO2 sorbents.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Electric Literature of C5H10Br2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about 3,28-Diacetoxylup-20(29)-ene-30-oic acid and its ω-bromoalkyl esters. Author is Ponomaryov, D. V.; Grigor’eva, L. R.; Nemtarev, A. V.; Tsepaeva, O. V.; Mironov, V. F.; Gnezdilov, O. I.; Antipin, I. S..

A convenient procedure was developed for the synthesis of 3β,28-diacetoxylup-20(29)-en-30-oic acid I (R = H) via oxidation of 3β,28-di-O-acetylbetulin with selenium dioxide in aqueous ethanol on heating, followed by oxidation of 3β,28-diacetoxylup-20(29)-en-30-al thus formed with sodium chlorite in tert-Bu alc. The alkylation of the acid with 1,3-dibrompropane and 1,5-dibromopentane in boiling acetonitrile in the presence of potassium carbonate afforded the corresponding ω-bromoalkyl esters I [R = (CH2)3Br, (CH2)5Br] in high yields.

Compound(111-24-0)Electric Literature of C5H10Br2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1,5-Dibromopentane), if you are interested, you can check out my other related articles.

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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Xue, Jiandang; Liu, Xin; Zhang, Junfeng; Yin, Yan; Guiver, Michael D. published an article about the compound: 1,5-Dibromopentane( cas:111-24-0,SMILESS:BrCCCCCBr ).Formula: C5H10Br2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:111-24-0) through the article.

The knowledge that N-spirocyclic quaternary ammonium (QA) cations appear to have good alk. stability has triggered the quest to incorporate these into anion exchange membranes (AEMs) with the anticipation of high operating stability in alk. fuel cells. Herein, a series of poly(2,6-dimethyl-1,4-phenylene oxide)s (PPOs) incorporating spirocyclic 3,6-diazaspiro[5.5]undecane (DSU) cation/cation strings are synthesized by a two-step quaternization strategy. The properties of DSU-based single-cation and double-cation AEMs (PPO-SDSU and PPO-DDSU, resp.) are discussed and the effect of introducing heterocyclic quaternary piperidinium (Qpip) on spirocyclic DSU cation strings is investigated. Ionic clusters of larger size scattering are observed by at. force microscopy for PPO-SDSU membranes, suggesting the dominant effect of polar tertiary nitrogen atom on the formation of ion cluster. The well-connected hydrophilic domains contributed to further increasing the water uptake and hydroxide conductivity of the AEMs. As a result, the PPO-SDSU membrane with ion exchange capacity (IEC) of 1.91 meq/g shows the highest hydroxide conductivity (31.9 mS/cm) with 76% water uptake and 9.6% linear dimensional swelling at 20 °C. Alk. stability tests imply that the presence of Qpip in DSU cation strings alleviates the degradation of spirocyclic QA from SN2 substitution, due to increased steric hindrance, but other considerations must address the potentially detrimental effect of Hofmann elimination on spirocyclic QA and PPO backbone scission, arising from the electron withdrawing effect of Qpip. Although hydroxide conductivity and IEC values were better retained for PPO-DDSU membranes, the inferior alk. stability of the benzylic attached Qpip counteracted the overall stability enhancement anticipated for incorporating spirocyclic DSU cations. These results may provide valuable insights toward more effective mol. designs and new synthetic pathways to AEMs incorporating base-stable N-spirocyclic QA.

Compound(111-24-0)Formula: C5H10Br2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(1,5-Dibromopentane), if you are interested, you can check out my other related articles.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Electric Literature of C5H10Br2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Hybrid bromobismuthates: Synthesis, thermal stability and crystal structure of multicharged 3-ammoniopyridinium derivatives. Author is Kotov, Vitalii Yu.; Buikin, Petr A.; Simonenko, Nikolay P.; Ilyukhin, Andrey B..

Five new derivatives of 3-ammoniopyridine, namely, 1,1′-(1,4-phenylenebis(methylene))bis (3-ammoniopyridinium) bromobismuthate-bromide [(3-NH3Py)2XK][BiBr6]Br·H2O (1), 3-amino-1-(3-(3-ammoniopyridin-1-ium-1-yl)propyl)pyridin-1-ium bromobismuthate [(3-NH2Py)(3-NH3Py)C3][BiBr6]·1.5H2O (2), 1,1′-(butane-1,1′-diyl)bis(3-ammoniopyridinium) bromobismuthate [(3-NH3Py)2C4][Bi2Br10] (3) and bromide [(3-NH3Py)2C4]Br4·2H2O (4), and 3-amino-1-(5-(3-ammoniopyridin-1-ium-1-yl)pentyl)pyridin-1-ium bromobismuthate [(3-NH2Py)(3-NH3Py)C5][BiBr6]·H2O (5), were successfully obtained from concentrated HBr solutions and characterized by single crystal X-Ray diffraction, XRD, DRS, and TG/DTA methods. All compounds are unstable and decompose slowly in humid air. According to DFT calculations the protonation of the amino group results in the increase of the electron affinity of the organic cation and leads to changes in the structure of the aminopyridine fragment of the cation. The C-NHn bond length values in 3-aminopyridinium (<1.40 Å) and in 3-ammoniopyridinium (≥1.44 Å) derivatives allows to uniquely determine the protonation degree of the N atom. From this literature《Hybrid bromobismuthates: Synthesis, thermal stability and crystal structure of multicharged 3-ammoniopyridinium derivatives》,we know some information about this compound(111-24-0)Electric Literature of C5H10Br2, but this is not all information, there are many literatures related to this compound(111-24-0).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

COA of Formula: C5H10Br2. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about The one-pot synthesis of butyl-1H-indol-3-alkylcarboxylic acid derivatives in ionic liquid as potent dual-acting agent for management of BPH. Author is Zeng, Li-Yan; Yang, Fubiao; Chen, Kaixuan; Zeng, Yunong; Jiang, Zhenzhou; Liu, Shuwen; Xi, Baomin.

Based on the SAR of both α1-AR antagonists and 5α-reductase (5AR) inhibitors, the dual-acting agent 4-(1-(4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl)-1H-indol-3-yl)butanoic acid was designed against BPH and synthesized by two steps of N-alkylation. One-pot protocol towards 4-(1-(4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl)-1H-indol-3-yl)butanoic acid was newly developed. With IL [C6min]Br as solvent, the yield of 4-(1-(4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl)-1H-indol-3-yl)butanoic acid was increased to 75.1% from 16.0% and the reaction time was shortened in 1.5 h from 48 h. 25 derivatives structurally based on arylpiperazine and indolyl butyric acid with alkyl linker were prepared The protocol was extended to get another 14 derivatives wherein O-alkylation was involved, and applied to the synthesis of biol. efficient mols. DPQ and Aripiprazole. Expectedly, 4-(1-(4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl)-1H-indol-3-yl)butanoic acid exhibited dual inhibition of α1-AR and 5α-reductase, and exhibited no obvious cytotoxicity against human cells. The pharmacokinetic properties of 4-(1-(4-(4-(2-methoxyphenyl)piperazin-1-yl)butyl)-1H-indol-3-yl)butanoic acid was also determined

From this literature《The one-pot synthesis of butyl-1H-indol-3-alkylcarboxylic acid derivatives in ionic liquid as potent dual-acting agent for management of BPH》,we know some information about this compound(111-24-0)COA of Formula: C5H10Br2, but this is not all information, there are many literatures related to this compound(111-24-0).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Rational synthesis, structural characterization, theoretical studies, antibacterial activity and selective dye absorption of new silver coordination polymers generated from a flexible bis (imidazole-2-thione) ligand, the main research direction is silver pentadienyl bisdihydroimidazolethione coordination polymer preparation luminescence thermal stability; bactericide luminescence band gap silver pentadienyl bisdihydroimidazolethione coordination polymer; crystal structure silver pentadienyl bisdihydroimidazolethione coordination polymer.Quality Control of 1,5-Dibromopentane.

Herein, a competition between the different anions with different size, shape and coordination ability was used for the synthesis of three silver(I)-coordination polymers (Ag-CPs) was investigated. In this study, three 3D-supra-mol. coordination compounds namely, [Ag2L(NO3)2]n (1), {[Ag2L][PF6]2}n (2) and [AgLBr]n (3) (L = 1,1′-(1,5-pentadienyl)bis-(1,3-dihydro-3-methyl-1H-imidazole-2-thione)) were synthesized and fully characterized via a single crystal X-ray diffraction, powder X-ray diffraction (PXRD), elemental anal. (CHN), FT-IR spectra and thermo gravimetric anal. (TGA). Structural anal. revealed that the counter ions have a notable impact in directing the conformation and coordination mode of ligand, but they have no effect on the structural dimension of the polymers. Furthermore, by increasing the coordination ability of the anions, the coordination geometry of the AgI centers change, from a distorted linear (for 2) to a distorted square pyramidal coordination geometry (for 1). The chains are further stabilized by the intermol. C-H···O and C-H···N for 1, P-F…H-C for 2, C-H···Br and C-H···N interactions for 3 to form a 3D non-covalent lattice network structure. In contrast to 1 and 3, polymer 2 exhibits a large capacity and selectivity to adsorb dye from aqueous solutions Sorption kinetic was investigated by three kinetic models. The electronic band structure and the projection densities of states (PDOS) of compounds 1 and 3 were investigated by means of DFT-D3. The results demonstrated that both compounds are non-magnetic and show a semiconducting character with a direct band gap of ∼3 eV. All of the synthesized compounds, possess antibacterial activity against the selected strain of Gram- neg. (Escherichiacoli, Pseudomonas aeruginosa) and Gram- pos. (Staphylococcus aureus, Bacillus subtilis) bacteria.

From this literature《Rational synthesis, structural characterization, theoretical studies, antibacterial activity and selective dye absorption of new silver coordination polymers generated from a flexible bis (imidazole-2-thione) ligand》,we know some information about this compound(111-24-0)Quality Control of 1,5-Dibromopentane, but this is not all information, there are many literatures related to this compound(111-24-0).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Reference of 1,5-Dibromopentane. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Design, synthesis and biological evaluation of rasagiline-clorgyline hybrids as novel dual inhibitors of monoamine oxidase-B and amyloid-β aggregation against Alzheimer’s disease. Author is Xie, Sai-Sai; Liu, Jing; Tang, Chunli; Pang, Chengyun; Li, Qing; Qin, Yuelian; Nong, Xiaojie; Zhang, Zhipeng; Guo, Jie; Cheng, Maojun; Tang, Weizhong; Liang, Ningsheng; Jiang, Neng.

A series of rasagiline-clorgyline hybrids was designed, synthesized and investigated in vitro for their inhibition of monoamine oxidase and amyloid-β aggregation. Most of compounds were found to be selective and highly potent hMAO-B inhibitors showing IC50 values in the nanomolar, and exhibited a moderate inhibition of amyloid-β aggregation. 7-((5-(methyl(prop-2-yn-1-yl)amino) pentyl)oxy)chroman-4-one (6j) was the most interesting compound identified in this research, endowed with higher hMAO-B potency (IC50 = 4 nM) and selectivity (SI > 25000) compared to the reference selective inhibitor rasagiline (IC50 = 141 nM, SI > 355), and exhibited good inhibitory activity against Aβ1-42 aggregation (40.78%, 25μM). Kinetic and mol. modeling studies revealed that 7-((5-(methyl(prop-2-yn-1-yl)amino) pentyl)oxy)chroman-4-one was a competitive reversible inhibitor for hMAO-B. Moreover, compound 7-((5-(methyl(prop-2-yn-1-yl)amino) pentyl)oxy)chroman-4-one displayed low toxicity and good neuroprotective effects in SH-SY5Y cell assay, and could penetrate the blood-brain barrier according to the parallel artificial membrane permeability assay. Pharmacokinetics assay revealed that 7-((5-(methyl(prop-2-yn-1-yl)amino) pentyl)oxy)chroman-4-one possessed good pharmacokinetic profiles after i.v. and oral administrations. Overall, these results highlighted that 7-((5-(methyl(prop-2-yn-1-yl)amino) pentyl)oxy)chroman-4-one was an effective and promising multitarget agent against Alzheimer’s disease.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis