Author: Jessica.F

The kinetics of the reactions of picryl chloride with some substituted anilines. Part 6. 4-Substituted and 3,4-disubstituted anilines was written by Emokpae, Thomas A.;Eguavoen, Osa;Khalil-Ur-Rahman;Hirst, Jack. And the article was included in Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999) in 1980.Safety of 3,4-Dibromoaniline This article mentions the following:

Arrhenius parameters were determined for the reactions of picryl chloride in MeCN with substituted anilines: 4-RC₆H₄NH₂ (R = F, Cl, Br, iodo, Me, OMe), 3,4-R₂C₆H₃NH₂ (R = Cl, Br, Me, OMe), 4,3-R(O₂N)C₆H₃NH₂ (R = F, Cl, Me), 3,4-R(MeO)C₆H₃NH₂ (R = F, Cl, Br, iodo), 3,4-F(O₂N)C₆H₃NH₂ and 3,4,5-(MeO)₃C₆H₂NH₂. In the 3,4-disubstituted series the effect of 2 Me groups on the free energy of activation is strictly additive, but for the rest the measured rate constants are greater than those calculated on the assumption of additivity. The results are rationalized in terms of the positions of the transition states on the reaction coordinate. In the experiment, the researchers used many compounds, for example, 3,4-Dibromoaniline (cas: 615-55-4Safety of 3,4-Dibromoaniline).

3,4-Dibromoaniline (cas: 615-55-4) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Safety of 3,4-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Functionalized N-Heterocyclic Carbene Monolayers on Gold for Surface-Initiated Polymerizations was written by Choi, Yunsoo;Park, Chul Soon;Tran, Hung-Vu;Li, Chien-Hung;Crudden, Cathleen M.;Lee, T. Randall. And the article was included in ACS Applied Materials & Interfaces in 2022.COA of Formula: C15H29BrO2 This article mentions the following:

Although N-heterocyclic carbenes (NHCs) are superior to thiol adsorbates in that they form remarkably stable bonds with gold, the generation of NHC-based self-assembled monolayers (SAMs) typically requires a strong base and an inert atm., which limits the utility of such films in many applications. Herein, we report the development and use of bench-stable NHC adsorbates, benzimidazolium methanesulfonates, for the direct formation of NHC films on gold surfaces under an ambient atm. at room temperature without the need for extraordinary precautions. The generated NHC SAMs were fully characterized using ellipsometry, XPS, polarization modulation IR reflection-absorption spectroscopy (PM-IRRAS), and contact angle measurements, and they were compared to analogous SAMs generated from an NHC bicarbonate adsorbate. Based on these findings, a unique radical initiator 浼?锠?bidentate azo-terminated NHC adsorbate, NHC15AZO[OMs], was designed and synthesized for the preparation of SAMs on gold surfaces with both NHC headgroups bound to the surface. The adsorbate mols. in NHC15AZO SAMs can exist in a hairpin or a linear conformation depending on the concentration of the adsorbate solution used to prepare the SAM. These conformations were studied by a combination of ellipsometry, XPS, PM-IRRAS, and scanning tunneling microscopy using gold nanoparticles (AuNPs) as a tag material. Moreover, the potential utility of these unique radical-initiating NHC films as surface-initiated polymerization platforms was demonstrated by controlling the thickness of polystyrene brush films grown from azo-terminated NHC monolayer surfaces simply by adjusting the reaction time of the photoinitiated radical polymer growth process. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2COA of Formula: C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. COA of Formula: C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Palladium-Catalyzed Regioselective Synthesis of 1-Hydroxycarbazoles Under Aerobic Conditions was written by Youn, So Won;Kim, Young Ho;Jo, Yoon Hyung. And the article was included in Advanced Synthesis & Catalysis in 2019.Recommanded Product: 192810-12-1 This article mentions the following:

A palladium-catalyzed aerobic C-H amidation of N-Ts-2-amino-3′-hydroxylbiaryls was developed to afford a diverse range of 1-hydroxycarbazoles with high regioselectivity and efficiency. This protocol benefits from operational simplicity, robustness, and sustainability using ambient air as the sole terminal oxidant. Further elaboration of the products obtained from this process provides facile access to various carbazole alkaloids including carbazolequinones and biscarbazoles. A mechanism involving dual directing group-assisted regioselective C-H activation at the more sterically hindered C2′-position of 2-amino-3′-hydroxylbiaryls is proposed. In the experiment, the researchers used many compounds, for example, Methyl 3-bromo-5-hydroxybenzoate (cas: 192810-12-1Recommanded Product: 192810-12-1).

Methyl 3-bromo-5-hydroxybenzoate (cas: 192810-12-1) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Recommanded Product: 192810-12-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Mechanochemical Aliphatic Iodination (and Bromination) by Cascaded Cyclization was written by Bal, Ankita;Kumar Dinda, Tarun;Mal, Prasenjit. And the article was included in Asian Journal of Organic Chemistry in 2022.Category: bromides-buliding-blocks This article mentions the following:

Herein, the synthesis of oxazoline derivatives I [Ar = Ph, 4-MeC₆H₄, 3-BrC₆H₄, etc.] from N-allyl benzamides via mechanochem. cascaded cyclization and halogenation using N-iodo- and N-bromosuccinimides, resp., as bifunctional reagents was demonstrated. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Category: bromides-buliding-blocks).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Azide-Modified Membrane Lipids: Synthesis, Properties, and Reactivity was written by Lindner, Sindy;Gruhle, Kai;Schmidt, Rico;Garamus, Vasil M.;Ramsbeck, Daniel;Hause, Gerd;Meister, Annette;Sinz, Andrea;Drescher, Simon. And the article was included in Langmuir in 2017.Computed Properties of C15H29BrO2 This article mentions the following:

In the present work, we describe the synthesis and the temperature-dependent behavior of photoreactive membrane lipids as well as their capability to study peptide-lipid interactions. The modified phospholipids contained an azide group either in the middle part or at the end of an alkyl chain and also differed in the linkage (ester vs. ether) of the 2nd alkyl chain. The temperature-dependent aggregation behavior of the azidolipids was studied using differential scanning calorimetry (DSC), FTIR spectroscopy, and SAXS. Aggregate structures were visualized by stain and cryo-transmission electron microscopy (TEM) and were further characterized by dynamic light scattering (DLS). We showed that the position of the azide group and the type of linkage of the alkyl chain at the sn-2 position of the glycerol influenced the type of aggregates formed as well as their long-term stability: azidolipids P10AzSPC and r12AzSHPC showed the formation of extrudable liposomes, which were stable in size during storage. In contrast, azidolipids that carry a terminal azido moiety either formed extrudable liposomes, which showed time-dependent vesicle fusion (P15AzPdPC), or self-assembled in large sheet-like, non-extrudable aggregates (r15AzPdHPC) where the lipid mols. were arranged in an interdigitated orientation at temperatures below the T_m (L_{灏?/sub>I phase). Finally, a P10AzSPC:DMPC mixture was used for photochem.-induced crosslinking experiments with a transmembrane peptide (WAL-peptide) to demonstrate the applicability of the azidolipids for the anal. of peptide/lipid interactions. The efficiency of photocrosslinking was monitored by attenuated total reflection IR spectroscopy and mass spectrometry. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Computed Properties of C15H29BrO2).}

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Computed Properties of C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Access to Planar Chiral Ferrocenes via N-Heterocyclic Carbene-Catalyzed Enantioselective Desymmetrization Reactions was written by Lv, Xiaokang;Xu, Jun;Sun, Cuiyun;Su, Fen;Cai, Yuanlin;Jin, Zhichao;Chi, Yonggui Robin. And the article was included in ACS Catalysis in 2022.Application of 28322-40-9 This article mentions the following:

Ferrocene-derived dicarbaldehydes bearing pro-chiral planes are desymmetrized under the catalysis of chiral N-heterocyclic carbene organic catalysts. The reaction features selective activation and reaction of one of the aldehyde moieties of the ferrocene derivative while leaving the other aldehyde unit untouched. The authors’ reaction affords enantiomerically enriched planar chiral ferrocene products obtained that are amenable for further transformations. Preliminary application studies show encouraging results when the authors’ products are explored for catalysis in chem. synthesis and for antimicrobial utilities in pesticide development. In the experiment, the researchers used many compounds, for example, Isopentyltriphenylphosphonium bromide (cas: 28322-40-9Application of 28322-40-9).

Isopentyltriphenylphosphonium bromide (cas: 28322-40-9) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Application of 28322-40-9

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Construction of Chiral 2-Substituted Octahydroindoles from Cyclic Ketones and Nitroolefins Bearing only One 浼?Substituent was written by Han, Yong;Zheng, Bo;Peng, Yungui. And the article was included in Advanced Synthesis & Catalysis in 2015.Computed Properties of C9H11BrO This article mentions the following:

A dual catalytic system was developed following the screening of a series of chiral primary amine catalysts and chiral phosphoric acid catalysts for the Michael addition of cyclic ketones to nitroolefins bearing only one 浼?substituent. The resulting 绾?nitro ketones, which contain a substituent on the carbon connected to the nitro group, were formed in excellent yields (>80%) with high levels of stereoselectivity (up to 94:6 dr and 98% ee) when the reaction was performed in benzene at 0鎺?with 10 mol% of the optimal amine/phosphoric acid combination (1:1) as a catalyst. Subsequent reduction of the nitro group followed by intramol. reductive amination afforded optically active cis-octahydroindole analogs bearing a non-functional substituent at their 2-position. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Computed Properties of C9H11BrO).

1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon閳ユ彽romine bond is electrophilic, i.e. alkyl bromides are alkylating agents. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Computed Properties of C9H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Design, Synthesis, and Pharmacological Evaluation of Fused 灏?Homophenylalanine Derivatives as Potent DPP-4 Inhibitors was written by Jiang, Tao;Zhou, Yuren;Chen, Zhuxi;Sun, Peng;Zhu, Jianming;Zhang, Qiang;Wang, Zhen;Shao, Qiang;Jiang, Xiangrui;Li, Bo;Chen, Kaixian;Jiang, Hualiang;Wang, Heyao;Zhu, Weiliang;Shen, Jingshan. And the article was included in ACS Medicinal Chemistry Letters in 2015.Recommanded Product: 1-(Bromomethyl)-4-fluoro-2-nitrobenzene This article mentions the following:

Dipeptidyl peptidase-4 (DPP-4) inhibitors are accepted as a favorable class of agents for the treatment of type 2 diabetes. Herein, a series of fused 灏?homophenylalanine derivatives as novel DPP-4 inhibitors was designed, synthesized, and evaluated for their inhibitory activities against DPP-4. Most of them displayed excellent DPP-4 inhibitory activities and good selectivity. Among them, 9aa, 18a, and 18m also showed good efficacy in an oral glucose tolerance test (OGTT) in ICR mice. Moreover, when dosed 8 h prior to glucose challenge, 18m showed significantly greater potency than sitagliptin. It thus provides potential candidates for the further development into potent drugs targeting DPP-4. In the experiment, the researchers used many compounds, for example, 1-(Bromomethyl)-4-fluoro-2-nitrobenzene (cas: 76437-44-0Recommanded Product: 1-(Bromomethyl)-4-fluoro-2-nitrobenzene).

1-(Bromomethyl)-4-fluoro-2-nitrobenzene (cas: 76437-44-0) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Recommanded Product: 1-(Bromomethyl)-4-fluoro-2-nitrobenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis of oxadiazole-2-oxide analogues as potential antischistosomal agents was written by Rai, Ganesha;Thomas, Craig J.;Leister, William;Maloney, David J.. And the article was included in Tetrahedron Letters in 2009.Electric Literature of C9H6BrFO2 This article mentions the following:

The synthesis of a series of 4,5-disubstituted furoxans, 1,2,5-oxadiazole-2-oxides I (e.g., R¹ = 4-F, 3-CF₃, etc) was described. These compounds were prepared in an effort to probe the SAR around the Ph substituent and oxadiazole core for studies toward thioredoxin-glutathione reductase (TGR) inhibition and antischistosomal activity. In the experiment, the researchers used many compounds, for example, 3-Bromo-4-fluorocinnamic acid (cas: 160434-49-1Electric Literature of C9H6BrFO2).

3-Bromo-4-fluorocinnamic acid (cas: 160434-49-1) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Electric Literature of C9H6BrFO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nickel-Catalyzed Electroreductive Syntheses of Triphenylenes Using ortho-Dihalobenzene-Derived Benzynes was written by Li, Zhao-Ming;Shuai, Bin;Ma, Cong;Fang, Ping;Mei, Tian-Sheng. And the article was included in Chinese Journal of Chemistry in 2022.HPLC of Formula: 615-55-4 This article mentions the following:

Electrochem. nickel-catalyzed syntheses of triphenylenes e.g., I, by a reductive trimerization of ortho-dibromobenzenes e.g.., 5,6-dibromoindane or ortho-bromoarylsulfurofluoridates e.g., 2-bromo-4-fluorophenyl sulfurofluoridate, or by reductive cross-coupling of ortho-dibromobenzenes to 2,2′-diiodobiphenyls, were described. The former provides a practical means for the construction of triphenylene derivatives e.g., ,I in up to 87% isolated yield at room temperature For 1,2-dihalo-3-methylbenzenes and related ortho-trisubstituted substrates, trimerizations proceed with high substrate-controlled regioselectivity for the non-C3h sym. triphenylene isomer. In the experiment, the researchers used many compounds, for example, 3,4-Dibromoaniline (cas: 615-55-4HPLC of Formula: 615-55-4).

3,4-Dibromoaniline (cas: 615-55-4) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.HPLC of Formula: 615-55-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary