Category: bromides-buliding-blocks

In 2018,Chen, Zhao; Liu, Gang; Pu, Shouzhi; Liu, Sheng Hua published 《Triphenylamine, carbazole or tetraphenylethylene-based gold(I) complexes: Tunable solid-state room-temperature phosphorescence and various mechanochromic luminescence characteristics》.Dyes and Pigments published the findings.Application In Synthesis of 3,5-Dibromoaniline The information in the text is summarized as follows:

Three novel gold(I) complexes based on triphenylamine, carbazole or tetraphenylethylene moiety were successfully designed and synthesized. Meanwhile, their structures were characterized by NMR spectroscopy and elemental anal. Their solid-state luminescence characteristics were surveyed by photoluminescence spectroscopy, and their distinct mech. stimulus-responsive behaviors in the solid state were also studied by photoluminescence spectroscopy. The solid-state phosphorescence and emission lifetimes of these mononuclear gold(I) complexes 1-3 could be tuned by introducing different fluorophores involving triphenylamine, carbazole or tetraphenylethylene. Also, luminogen 1 exhibited switchable mechanochromic luminescence behavior with color change from yellow to colorless, and the solid-state luminescence on-off mechanochromism between yellow-green and colorless of luminogen 2 could also be observed However, no mechanochromism phenomenon was observed for tetraphenylethene-containing luminogen 3. The powder x-ray diffraction results suggested that the unusual high-contrast mechanochromism characteristics of luminogens 1 and 2 could be attributed to a crystalline-to- amorphous morphol. transition. After reading the article, we found that the author used 3,5-Dibromoaniline(cas: 626-40-4Application In Synthesis of 3,5-Dibromoaniline)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Application In Synthesis of 3,5-Dibromoaniline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2016,Kundu, Subrata; Nagapradeep, N.; Mohapatra, Balaram; Biswas, Sourav; Verma, Sandeep; Chandrasekhar, Vadapalli published 《Organostannoxane-supported nucleobase arrays: synthesis and supramolecular structures of polymeric and molecular organotin complexes containing guanine, uracil and 2-aminopurine》.CrystEngComm published the findings.Name: Methyl 3-bromopropanoate The information in the text is summarized as follows:

The reaction of L1H {L1H = 3-(N9-guaninyl)propionic acid} with Me3SnCl or (n-Bu3Sn)2O afforded the 1D coordination polymers, [Me3Sn(L1)]n (1) and [n-Bu3Sn(L1)]n (2) resp. A reaction between L2H {L2H = 3-(N7-guaninyl)propionic acid} with Me3SnCl also afforded a 1D coordination polymer, [Me3Sn(L2)]n (3). A similar reaction between L3H [uracil-6-carboxylic acid] with (Ph3Sn)2O in a 2 : 1 ratio afforded a dimer [(n-Bu3SnL3)2·H2O] (4). A mononuclear compound [Me3Sn(L4)·H2O] (5) was obtained in a 1 : 1 reaction of 3-{N9-(2-aminopurinyl)}propanoic acid (L4H) with Me3SnCl. Complexes 1-5 show rich supramol. structures in the solid state as a result of several intermol. interactions. Thus, in the one-dimensional coordination polymer 3, triple hydrogen bonding (GG), between inter-chain guanine units has been observed Similarly a homo orotate quartet has been observed in 4 as a result of intermol. interactions. In the experiment, the researchers used Methyl 3-bromopropanoate(cas: 3395-91-3Name: Methyl 3-bromopropanoate)

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.Name: Methyl 3-bromopropanoate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Cheng, Ge; Zhao, Ling; Wang, Yuechuan published an article in Gaofenzi Xuebao. The title of the article was 《Synthesis and characterization of polyphenylene dendrimers containing terminal trimethylsilyl groups》.Electric Literature of C24H12Br6 The author mentioned the following in the article:

Polyphenylene dendrimers containing terminal trimethylsilyl groups have been synthesized by a phosphine-free palladium chloride-catalyzed Suzuki coupling of 1,3,5-tris(3′,5′-dibromophenyl)benzene with aryl boronic acids. These macromols. were characterized by Fourier transform IR (FTIR), NMR and matrix assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectra. Gel permeation chromatog. (GPC) indicated that the hydrodynamic radius of I, with trimethylsilyl (TMS) groups substituted at para-positions on its terminal benzene rings, was larger than that of its Me derivative, with trimethylsilyl groups substituted at meta-positions on its terminal benzene rings. X-ray powder diffraction patterns showed that dendrimer I was of a certain amount of crystallinity and the Me derivative dendrimer was amorphous.3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8Electric Literature of C24H12Br6) was used in this study.

3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8) 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. Electric Literature of C24H12Br6 Moreover, several studies demonstrate that the average proportion of bromine in drugs is significantly higher than that in natural products.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Ultrasensitive small molecule fluorogenic probe for human heparanase》 was written by Liu, Jun; Schleyer, Kelton A.; Bryan, Tyrel L.; Xie, Changjian; Seabra, Gustavo; Xu, Yongmei; Kafle, Arjun; Cui, Chao; Wang, Ying; Yin, Kunlun; Fetrow, Benjamin; Henderson, Paul K. P.; Fatland, Peter Z.; Liu, Jian; Li, Chenglong; Guo, Hua; Cui, Lina. Name: (2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetateThis research focused onultrasensitive fluorogenic probe human heparanase. The article conveys some information:

Heparanase (HPA) is a critical enzyme involved in the remodeling of the extracellular matrix (ECM), and its elevated expression has been linked with diseases such as various types of cancer and inflammation. The detection of heparanase enzymic activity holds tremendous value in the study of the cellular microenvironment, and search of mol. therapeutics targeting heparanase, however, no structurally defined probes are available for the detection of heparanase activity. Here we present the development of the first ultrasensitive fluorogenic small-mol. probe for heparanase enzymic activity via tuning the electronic effect of the substrate. The probe exhibits a 756-fold fluorescence turn-on response in the presence of human heparanase, allowing one-step detection of heparanase activity in real-time with a picomolar detection limit. The high sensitivity and robustness of the probe are exemplified in a high-throughput screening assay for heparanase inhibitors. In the experiment, the researchers used (2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate(cas: 21085-72-3Name: (2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate)

(2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate(cas: 21085-72-3) may be used for the synthesis of HMR1098-S-Glucuronide Methyl Ester, a new K-ATP-blocking agent being developed as a drug for prevention of sudden cardiac death.Name: (2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of oligophenylene dendrimer catalyzed by ligandless palladium chloride》 was written by Cheng, Ge; Wang, Yue-Chuan. Name: 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl And the article was included in Yingyong Huaxue on August 23 ,2000. The article conveys some information:

A dendritic oligophenylene in yield of 48% has been synthesized via cross-coupling reaction of Ph boronic acid with 1,3,5-tris(3,5-dibromophenyl)benzene catalyzed by the ligandless palladium chloride in mixture of water/toluene/THF in the presence of tetrabutylammonium bromide. The yield per coupling (y/c) was 88%. In addition to this study using 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl, there are many other studies that have used 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8Name: 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl) was used in this study.

3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8) 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. Name: 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl Moreover, several studies demonstrate that the average proportion of bromine in drugs is significantly higher than that in natural products.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Stereospecific Iron-Catalyzed Carbon (sp2)-Carbon (sp2) Cross-Coupling of Aryllithium with Vinyl Halides》 was written by Chen, Peng; Wang, Zhi-Yong; Peng, Xiao-Shui; Wong, Henry N. C.. Product Details of 2635-13-4This research focused onvinyl halide aryllithium prepare iron catalyst diastereoselective cross coupling; styrene preparation. The article conveys some information:

An efficient synthetic protocol involving iron-catalyzed cross-coupling of organolithium compounds with vinyl halides as key coupling partners. More than 30 examples were obtained with moderate to good yields and high stereoselectivities. The practicality of this method was evidenced by a gram-scale synthesis. In addition, a preliminary mechanistic investigation were also performed. In the experimental materials used by the author, we found 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Product Details of 2635-13-4)

Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.Product Details of 2635-13-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Palladium-Catalyzed Tandem Dehydrogenative [4 + 2] Annulation of Terminal Olefins with N-Sulfonyl Amides via C-H Activations》 was written by Sun, Manman; Chen, Weida; Xia, Xiangyu; Shen, Guodong; Ma, Yongmin; Yang, Jianguo; Ding, Hanfeng; Wang, Zhiming. Application of 586-76-5This research focused onvinyl heterocyclic compound preparation stereoselective green chem; terminal olefin sulfonyl amide tandem dehydrogenative annulation palladium catalyst. The article conveys some information:

A palladium-catalyzed tandem dehydrogenative [4 + 2] annulation of terminal olefins with N-sulfonyl amides via C(sp2)-H activation, allylic C(sp3)-H activation, and homoallylic C(sp3)-H elimination processes has been developed. Promoted by the DMSO ligand, various benzamides, heterocyclic arylamides, alkenyl carboxamides, and com. olefins are found to be efficient substrates to construct important heterocyclic compounds bearing a vinyl substituent with high E stereoselectivity. Using air as the terminal oxidant also provides a great advantage regarding environmental friendliness.4-Bromobenzoic acid(cas: 586-76-5Application of 586-76-5) was used in this study.

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. 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.Application of 586-76-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Dipolar HCP materials as alternatives to DMF solvent for azide-based synthesis》 was published in Green Chemistry in 2021. These research results belong to Gao, Feng; Bai, Rongxian; Li, Minghao; Gu, Yanlong. Electric Literature of C7H5Br2F The article mentions the following:

Hypercrosslinked polymers HCP-DMF and HCP-DMF-SO3H containing abundant and flexible DMF moieties were designed and synthesized. Benefitting from the solvation microenvironment provided by the pseudo-DMF moities, the polar HCPs manifested outstanding performances in the conversions of NaN3 to benzylic azides and 1,2,3-triazoles in EtOH (95%), resp., avoiding the use of risky DMF and improving the separation processes of the products. The experimental part of the paper was very detailed, including the reaction process of 4-Bromo-1-(bromomethyl)-2-fluorobenzene(cas: 76283-09-5Electric Literature of C7H5Br2F)

4-Bromo-1-(bromomethyl)-2-fluorobenzene(cas: 76283-09-5) belongs to organobromine compounds. 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. Electric Literature of C7H5Br2F

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Design, synthesis and fungicidal activity of 3,4-dichloroisothiazolocoumarin-containing strobilurins》 was written by Lv, You; Li, Kun; Gao, Wei; Hao, Zesheng; Wang, Weibo; Liu, Xiaoyu; Tang, Liangfu; Fan, Zhijin. Application In Synthesis of Ethylbromofluoroacetate And the article was included in Molecular Diversity on April 30 ,2022. The article conveys some information:

Twenty-one novel 3,4-dichloroisothiazolocoumarin-containing strobilurins I (R1 = H, F, Cl, Me, Et; R2 = H, 6-Me, 8-Me, 8-Cl), II were rationally designed and synthesized. Preliminary bioassay showed that compounds I (R1 = H, R2 = 8-Cl (III); R1 = Cl, R2 = 6-Me; R1 = Me, R2 = 6-Me) exhibited over 80% inhibitory rate against Sclerotinia sclerotiorum at 50μg/mL, compound III exhibited good activity against S. sclerotiorum with median effective concentration (EC50) of 4.08μ/mL, while the pos. control coumoxystrobin showed EC50 of 1.00μg/mL. In addition, compound I (R1 = H, R2 = 6-Me) showed better fungicidal activity with a lower EC50 value of 7.65μg/mL against Botrytis cinerea than that of pos. control trifloxystrobin with its EC50 value of 21.96μg/mL. In this study, it was indicated that 3,4-dichloroisothiazolocoumarin-containing strobilurins I, II were promising fungicide lead deserved for further study. After reading the article, we found that the author used Ethylbromofluoroacetate(cas: 401-55-8Application In Synthesis of Ethylbromofluoroacetate)

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.Application In Synthesis of Ethylbromofluoroacetate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application In Synthesis of 8-Bromooctanoic acidIn 2020 ,《Reflection absorption infrared spectroscopy characterization of SAM formation from 8-mercapto-N-(phenethyl)octanamide thiols with Phe ring and amide groups》 was published in Molecules. The article was written by Kuodis, Zenonas; Matulaitiene, Ieva; Spandyreva, Marija; Labanauskas, Linas; Stoncius, Sigitas; Lorka, Olegas Eicher; Sadzeviciene, Rita; Niaura, Gediminas. The article contains the following contents:

Multifunctional amide-containing self-assembled monolayers (SAMs) provide prospects for the construction of interfaces with required physicochem. properties and distinctive stability. In this study, we report the synthesis of amide-containing thiols with terminal phenylalanine (Phe) ring functionality (HS(CH2)7CONH(CH2)2C6H5) and the characterization of the formation of SAMs from these thiols on gold by reflection absorption IR spectroscopy (RAIRS). For reliable assignments of vibrational bands, ring deuterated analogs were synthesized and studied as well. Adsorption time induced changes in Amide-II band frequency and relative intensity of Amide-II/Amide-I bands revealed two-state sigmoidal form dependence with a transition inflection points at 2.2 ± 0.5 and 4.7 ± 0.5 min, resp. The transition from initial (disordered) to final (hydrogen-bonded, ordered) structure resulted in increased Amide-II frequency from 1548 to 1557 cm-1, which is diagnostic for a strongly hydrogen-bonded amide network in trans conformation. However, the lateral interactions between the alkyl chains were found to be somewhat reduced when compared with well-ordered alkane thiol monolayers.8-Bromooctanoic acid(cas: 17696-11-6Application In Synthesis of 8-Bromooctanoic acid) was used in this study.

8-Bromooctanoic acid(cas: 17696-11-6) acid is used in the synthesis of 8-(N-Methyl-4,4′-bipyridinyl)- octanoic acid. 8-Mercaptooctanoic acid was prepared from 8-bromooctanoic acid. And 8-Bromooctanoic Acid is a useful compound for sonodynamic therapy.Application In Synthesis of 8-Bromooctanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary