Category: bromides-buliding-blocks

The author of 《Side-Chain Polymers as Dopant-Free Hole-Transporting Materials for Perovskite Solar Cells-The Impact of Substituents’ Positions in Carbazole on Device Performance》 were Wu, Jianchang; Liu, Chang; Li, Bo; Gu, Fenglong; Zhang, Luozheng; Hu, Manman; Deng, Xiang; Qiao, Yuan; Mao, Yongyun; Tan, Wenchang; Tian, Yanqing; Xu, Baomin. And the article was published in ACS Applied Materials & Interfaces in 2019. Synthetic Route of C12H7Br2N The author mentioned the following in the article:

Side-chain polymers have the potential to be excellent dopant-free hole-transporting materials (HTMs) for perovskite solar cells (PSCs) because of their unique characteristics, such as tunable energy levels, high charge mobility, good solubility, and excellent film-forming ability. However, there has been less research focusing on side-chain polymers for PSCs. Here, two side-chain polystyrenes with triphenylamine substituents on carbazole moieties were designed and characterized. The properties of the side-chain polymers were tuned finely, including the photophys. and electrochem. properties and charge mobilities, by changing the positions of triphenylamine substituents on carbazole. Owing to the higher mobility and charge extraction ability, the polymer P2 with the triphenylamine substituent on the 3,6-positions of the carbazole unit showed higher performance with power conversion efficiency (PCE) of 18.45%, which was much higher than the PCE (16.78%) of P1 with 2,7-positions substituted. These results clearly demonstrated that side-chain polymers can act as promising HTMs for PSC applications and the performance of side-chain polymers could be optimized by carefully tuning the structure of the monomer, which provides a new strategy to design new kinds of side-chain polymers and obtain high-performance dopant-free HTMs. The experimental part of the paper was very detailed, including the reaction process of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Synthetic Route of C12H7Br2N)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Synthetic Route of C12H7Br2N

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Functionalized helical β-peptoids》 were Wellhofer, Isabelle; Frydenvang, Karla; Kotesova, Simona; Christiansen, Andreas M.; Laursen, Jonas S.; Olsen, Christian A.. And the article was published in Journal of Organic Chemistry in 2019. Computed Properties of C4H7BrO2 The author mentioned the following in the article:

Peptidomimetic foldamers adopting well-defined three-dimensional structures while being stable toward proteolysis are of interest in biomedical research, chem. biol., and biomimetic materials science. Despite their backbone flexibility, β-peptoids containing N-(S)-1-(1-naphthyl)ethyl (Ns1npe) side chains can fold into unique triangular prism-shaped helixes. We report herein the successful introduction of amino groups onto robustly folded β-peptoid helixes by construction and incorporation of novel chiral building blocks. This is the first example of an X-ray crystal structure of a linear β-peptoid containing more than one type of side chain. We thus present a unique foldamer design comprising a robustly folded core with functionalized side chains protruding perpendicular to the helical axis to provide a highly predictable display of functional groups. This work paves the way for development of β-peptoid foldamers with a desired function, such as catalytic properties or as scaffolds enabling polyvalent display. The experimental process involved the reaction of Methyl 3-bromopropanoate(cas: 3395-91-3Computed Properties of C4H7BrO2)

Methyl 3-bromopropanoate(cas: 3395-91-3) belongs to bromides. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact.Computed Properties of C4H7BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Selective synthesis of N-protected exo-spiro[oxirane-3,2′-tropanes]》 were Mandzhulo, Aleksandr; Vashchenko, Iryna; Gerasov, Andrii; Vovk, Mykhaylo; Rusanov, Eduard; Fetyukhin, Volodymyr; Lukin, Oleg; Shivanyuk, Alexander. And the article was published in Organic Chemistry Frontiers in 2019. HPLC of Formula: 1779-49-3 The author mentioned the following in the article:

N-Cbz- and N-Boc-protected exo-spiro[oxirane-3,2′-tropanes] were obtained in 62-75% yield via either epoxidation or hydroxybromination/dehydrobromination of the corresponding alkenes. Deprotection of the Cbz-exo-epoxide afforded the corresponding tropane containing an exo-oxirane fragment and a secondary amino group. In the experimental materials used by the author, we found Methyltriphenylphosphonium bromide(cas: 1779-49-3HPLC of Formula: 1779-49-3)

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.HPLC of Formula: 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,ACS Combinatorial Science included an article by de Pedro Beato, Eduardo; Priego, Julian; Gironda-Martinez, Adrian; Gonzalez, Fernando; Benavides, Jesus; Blas, Jesus; Martin-Ortega, Maria Dolores; Toledo, Miguel Angel; Ezquerra, Jesus; Torrado, Alicia. Formula: C7H5BrO2. The article was titled 《Mild and Efficient Palladium-Mediated C-N Cross-Coupling Reaction between DNA-Conjugated Aryl Bromides and Aromatic Amines》. The information in the text is summarized as follows:

DNA-encoded library technol. (ELT) has emerged in the pharmaceutical industry as a powerful tool for hit and lead generation. Over the last 10 years, a number of DNA-compatible chem. reactions have been published and used to synthesize libraries. Among the most commonly used reactions in medicinal chem. is the C-N bond formation, and its application to DNA-encoded library technol. affords an alternative approach to identify high-affinity binders for biol. relevant protein targets. Herein we report a newly developed Pd-promoted C-N cross coupling reaction between DNA-conjugated aryl bromides and a wide scope of arylamines in good to excellent yields. The mild reaction conditions should facilitate the synthesis of novel DNA-encoded combinatorial libraries. After reading the article, we found that the author used 4-Bromobenzoic acid(cas: 586-76-5Formula: C7H5BrO2)

4-Bromobenzoic acid(cas: 586-76-5) has been used to study the metabolic fate of 2-,3-and 4-bromo benzoic acids in rat hepatocytes incubation using high temperature liquid chromatography.Formula: C7H5BrO2 It was used in bromine-specific detection of the metabolites of 2-,3-and 4-bromobenzoic acid in the urine and bile of rats by inductively coupled plasma mass spectrometry.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,European Journal of Medicinal Chemistry included an article by Zhu, Yan; Sun, Nannan; Yu, Mingcheng; Guo, Huimin; Xie, Qiong; Wang, Yonghui. Recommanded Product: 3395-91-3. The article was titled 《Discovery of aryl-substituted indole and indoline derivatives as RORγt agonists》. The information in the text is summarized as follows:

A series of aryl-substituted indole and indoline derivatives were discovered as novel RORγt agonists by a scaffold-based hybridization of the reported RORγt agonists 1 and 2. SAR studies on the core structures, the RHS hydrophilic side chains and the LHS hydrophobic aryl groups of a hybrid compound 3 led to the identification of potent RORγt agonists with improved drug-like properties. Compound 14 represented a high potency lead with an EC50 of 20.8 ± 1.5 nM, the (S)-enantiomer (EC50 = 16.1 ± 4.5 nM) of which was 17 times more potent than the (R) counterpart (EC50 = 286 ± 30.4 nM) in RORγ dual FRET assay. The cell-based GAL4 reporter gene assay also suggested 14 as the most active compound which exhibited an EC50 of 247 ± 33.1 nM and a maximum activation percentage of 133%. Moreover, 14 showed high metabolic stability (t1/2 = 113 min) in mouse liver microsome and had improved aqueous solubility at pH 7.4 compared to the parent compounds Furthermore, 14 was found to be orally bioavailable and demonstrated excellent in vivo pharmacokinetics in mice. Present studies indicate that 14 deserves further investigation in tumor animal models as a potential candidate of RORγt agonist for cancer immunotherapy. In the experimental materials used by the author, we found Methyl 3-bromopropanoate(cas: 3395-91-3Recommanded Product: 3395-91-3)

Methyl 3-bromopropanoate(cas: 3395-91-3) belongs to bromides. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents.Recommanded Product: 3395-91-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,European Journal of Medicinal Chemistry included an article by Gao, Feng; Wang, Tengfei; Gao, Meixiang; Zhang, Xia; Liu, Zhuqing; Zhao, Shi Jia; Lv, Zao Sheng; Xiao, Jiaqi. Related Products of 629-03-8. The article was titled 《Benzofuran-isatin-imine hybrids tethered via different length alkyl linkers: Design, synthesis and in vitro evaluation of anti-tubercular and anti-bacterial activities as well as cytotoxicity》. The information in the text is summarized as follows:

The design and synthesis of twenty-two novel benzofuran-isatin-imine hybrids I [R1 = H, F, OCH3; X = (CH2)n; Y = NOCH3, NOC2H5, NNHC(S)NH2, NOH; R3 = H, OCH3, F; n = 1, 2, 3, 4] tethered through propylene, butylene, pentylene and hexylene, and for the evaluation of their in vitro anti-tubercular and anti-bacterial activities as well as cytotoxicity were reported. All benzofuran-isatin-imine hybrids exhibited considerable in vitro anti-TB (MIC: <0.016-0.218 μg/mL and 0.062-14.15 μg/mL against drug-sensitive and MDR MTB, resp.) and anti-bacterial (MIC: 0.25-64 μg/mL and 0.06-16 μg/mL against Gram-pos. and Gram-neg. strains, resp.) activities. All of them also showed acceptable cytotoxicity towards VERO (CC50: 8-128 μg/mL). The most active hybrid I (R1 = H; X = CH2CH2; Y = NOCH3; R3 = OCH3) (MIC: <0.016, 0.062 and 0.16 μg/mL, resp.) was >4.8 and >48 folds more potent than the first line anti-TB agents RIF and INH against both drug-sensitive MTB H37Rv and MDR-TB isolates, resp. Moreover, hybrid I (R1 = H; X = CH2CH2; Y = NOCH3; R3 = OCH3) also demonstrated promising anti-bacterial activities with MIC values of ≤1 μg/mL against the majority of the tested Gram-neg. and Gram-pos. pathogens, which was comparable to vancomycin (MIC: 0.5-4 μg/mL) and CPFX (MIC: 0.125-8 μg/mL) against Gram-pos. bacteria, but slightly less potent than CPFX (MIC: ≤0.03-0.5 μg/mL) against Gram-neg. bacteria. The results indicated that benzofuran-isatin-imine hybrids could act as candidates for the development of anti-TB and anti-bacterial agents. In the experiment, the researchers used 1,6-Dibromohexane(cas: 629-03-8Related Products of 629-03-8)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Related Products of 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

COA of Formula: C6H4BBrF3KOn September 15, 2006 ,《Linchpin Synthons: Metalation of Aryl Bromides Bearing a Potassium Trifluoroborate Moiety》 was published in Journal of Organic Chemistry. The article was written by Molander, Gary A.; Ellis, Noel M.. The article contains the following contents:

Aryl bromides bearing a potassium trifluoroborate moiety were subjected to lithium-halogen exchange at low temperature using a variety of alkyllithium reagents. A number of different electrophiles were evaluated in their reactions with the aryllithiums produced therein. Under carefully optimized conditions, potassium bromophenyl trifluoroborates afforded good to excellent yields of the corresponding alcs. (64-94% isolated yield) when aldehydes or ketones were used as the electrophilic partner. Esters were unfortunately found to be unreactive.potassium (3-bromophenyl)trifluoroborate(cas: 374564-34-8COA of Formula: C6H4BBrF3K) was used in this study.

potassium (3-bromophenyl)trifluoroborate(cas: 374564-34-8) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. COA of Formula: C6H4BBrF3K The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Understanding the Reshaping of Fluorinated Polyester Vitrimers by Kinetic and DFT Studies of the Transesterification Reaction》 was written by Lemouzy, Sebastien; Cuminet, Florian; Berne, Dimitri; Caillol, Sylvain; Ladmiral, Vincent; Poli, Rinaldo; Leclerc, Eric. HPLC of Formula: 401-55-8 And the article was included in Chemistry – A European Journal on August 26 ,2022. The article conveys some information:

Vitrimers are a third class of polymers gathering the mech. properties and solvent resistance of 3D thermosets and the reprocessability of thermoplastics. This unique behavior is due to the triggering of certain covalent exchange reactions that allow the network to rearrange upon application of a stimulus. The constitutive feature of vitrimers is the adoption of a glass-like viscosity during the rearrangement of the network, often due to an associative mechanism for the exchange reaction. Transesterification networks are one of the most studied type of vitrimers that usually require the incorporation of a catalyst, implying the associated drawbacks. Following up on a recent report on catalyst-free transesterification vitrimers in which the ester functions are particularly reactive thanks to the presence of fluorine atoms in α- or β-position, parallel DFT calculations and an exptl. kinetic study on model mols. are presented in order to quant. assess the effect of neighboring fluorinated groups on the transesterification reaction rate. The experimental part of the paper was very detailed, including the reaction process of Ethylbromofluoroacetate(cas: 401-55-8HPLC of Formula: 401-55-8)

Ethylbromofluoroacetate(cas: 401-55-8) is a member of organofluorine compounds. Organofluorine compounds, which have carbon-fluorine bonds, show unique features such as high thermal and chemical stability, high surface activity, no light-absorbing ability, high pharmacological effect, and so on. Owing to their specific characters, they are indispensable chemicals for industry and our daily lives.HPLC of Formula: 401-55-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis, labeling and biological evolution of new thiopyrano[2,3-b]pyridine derivatives as potential anticancer agents》 was written by Sofan, Mamdouh Abdel-Monem; Hamama, Wafaa Salama; El-Hawary, Ibrahim Ibrahim; Ibrahim, Ismail Taha; Zoorob, Hanafi Hassan. Product Details of 539-74-2This research focused onthiopyranopyridine preparation anticancer. The article conveys some information:

The new thiopyrano[2,3-b]pyridines could be synthesized from the nicotinonitrile derivative The cytotoxicity activity of the selected compounds I, II and III was tested against MCF-7 and HCT-116 cell lines. The compound I (TP5) exhibited significant inhibitory activity and displayed the most potent activity, more than II and III. The compound I with potent inhibitory activity in tumor growth inhibition would be a potential anticancer agent. In the light of this result, the labeled 125I-compound I (125I-TP5) was prepared and its cytotoxicity against ascites tumor in mice has been evaluated. The results show that compound I (TP5) may be potentially used as a radiopharmaceutical for tumor diagnosis when labeled with 125I. In addition to this study using Ethyl 3-bromopropanoate, there are many other studies that have used Ethyl 3-bromopropanoate(cas: 539-74-2Product Details of 539-74-2) was used in this study.

Ethyl 3-bromopropanoate(cas: 539-74-2) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis. Product Details of 539-74-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Identification and structure-activity relationship exploration of uracil-based benzoic acid and ester derivatives as novel dipeptidyl Peptidase-4 inhibitors for the treatment of type 2 diabetes mellitus》 was written by Li, Qing; Deng, Xiaoyan; Jiang, Neng; Meng, Liuwei; Xing, Junhao; Jiang, Weizhe; Xu, Yanjun. Recommanded Product: Methyl 3-(bromomethyl)benzoateThis research focused onuracil benzoic acid ester dipeptidyl peptidase inhibitor diabetes mellitus; Benzoic acid; DPP-4 inhibitor; Ester; SAR exploration; Type 2 diabetes. The article conveys some information:

Our previously reported carboxyl-containing DPP-4 inhibitors were highly potent but were poorly bioavailable. Esters of the carboxyl analogs exhibited a significant DPP-4 potency loss albeit with enhanced oral absorption. Herein, we described identification and structure-activity relationship (SAR) exploration of a novel series of benzoic acid and ester derivatives as low single-digit nanomolar DPP-4 inhibitors. Importantly, the esters displayed comparable activities to the acids counterparts. Mol. simulation revealed that ester adopts a similar binding mode to acid. Moreover, the selected esters and acids demonstrated high selectivity and low cytotoxicity, as well as good metabolic stability. And more importantly, the esters possessed excellent pharmacokinetic profiles for oral administration. The best compound ester 19b demonstrated long DPP-4 inhibition in vivo, and robustly improved the glucose tolerance in normal and db/db mice while ensuring glucose-lowering potency in chronic treatment. Our results supported that the compound 19b can be served as a potential candidate for the treatment of type 2 diabetes. In the experiment, the researchers used many compounds, for example, Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8Recommanded Product: Methyl 3-(bromomethyl)benzoate)

Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. The most pervasive is the naturally produced bromomethane.Recommanded Product: Methyl 3-(bromomethyl)benzoate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary