Tag: 200-300

Ishikawa, Sekiha; Masuyama, Yoshikazu; Adachi, Takeshi; Shimonishi, Takeshi; Morimoto, Shotaro; Tanabe, Yoo published an article in 2021. The article was titled 《Synthesis of Naphthaleman Family Utilizing Regiocontrolled Benzannulation: Unique Molecules Composed of Multisubstituted Naphthalenes》, and you may find the article in ACS Omega.Category: bromides-buliding-blocks The information in the text is summarized as follows:

The naphthaleman family, a set of uniquely designed visual mol. structures comprising multisubstituted naphthalenes, I, wherein Yn = H, OMe, 3,4,5-(OMe)3, 1-naphthyl, was synthesized utilizing regiocontrolled benzannulation as a key step. The naphthaleman family possesses a common naphthalene body with a head comprising the 3,4-methylenedioxy group, sym. or unsym. right and left arms, and two alkynyl legs. The synthesis involves six C-C bond-forming reaction sequences. (i) syn-Stereoselective gem-dichlorocyclopropanation of Me angelate (86%). (ii) Acylation with ArMgBr (three examples, 60-91% yield). (iii) Stereocontrolled introduction of the 3,4-methylenedioxyphenyl group (three examples, 67-92% yield). (iv) Crucial regiocontrolled benzannulation to construct a common body segment (71-73% yield). (v) Two Suzuki-Miyaura cross-couplings to install the right or left arms (first-stage route: four examples, 77-93% and second-stage route: four examples, 42-90% yield). (vi) Double alkynylation to insert two legs (first-stage route: four examples, 61-77% yield and second-stage route: sole example, 83% yield). The four core members were produced through both first-stage and second-stage routes, with the second-stage approach demonstrating superiority over the first-stage approach. One of the members was alternatively synthesized by switching the installation order of the right and left arms, and identical twin members were produced by high-performance liquid chromatog. chiral separation The most stable conformations of two naphthaleman family members were calculated by Spartan software. In the part of experimental materials, we found many familiar compounds, such as 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Category: bromides-buliding-blocks)

1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8) is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.Category: bromides-buliding-blocks1-Bromo-3,4,5-trimethoxybenzene can be used to synthesize analogs of HA14-1, which shows promising anticancer properties.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Jichun; Pan, Shuojiong; Gao, Shiqian; Li, Tianyu; Xu, Huaping published their research in Biomaterials in 2021. The article was titled 《CO/chemosensitization/antiangiogenesis synergistic therapy with H2O2-responsive diselenide-containing polymer》.Recommanded Product: Bromopentacarbonylmanganese(I) The article contains the following contents:

Carbon monoxide (CO) therapy and antiangiogenesis therapy (AAT) are regarded as promising approaches for cancer treatment. However, the poor tumor targeting ability and inevitable side effects prevent their clin. application. In this study, we developed H2O2-responsive diselenide-containing micelles that combined CO therapy with chemosensitization therapy and AAT in a single system. Under the interaction of intratumoral H2O2, CO and gemcitabine (GEM) were released in situ from the micelles to reduce side effects, and CO significantly sensitized the chemotherapeutic effect of GEM by elevating the level of reactive oxygen species (ROS) in human gastric cancer AGS cells. Furthermore, diselenide bonds in the micelles were oxidized to seleninic acid in organic form, which suppressed the expressions of vascular endothelial growth factor (VEGF) and matrix metalloproteinase-2 (MMP-2) to realize AAT. This study provides an integrated solution to combine CO therapy with chemosensitization therapy and AAT together with good biocompatibility. In the experimental materials used by the author, we found Bromopentacarbonylmanganese(I)(cas: 14516-54-2Recommanded Product: Bromopentacarbonylmanganese(I))

Bromopentacarbonylmanganese(I)(cas: 14516-54-2) has many other uses. It is used in the formation of (eta6-arene)tricarbonylmanganese(I) by reacting with arene (arene= hexamethyl benzene, 1,2,4,5-tetramethyl benzene, mesitylene, p-xylene and toluene) in the presence silver salt.Recommanded Product: Bromopentacarbonylmanganese(I)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Zhao-Yang; Peng, Wei-Yu; Akram, Waseem; Lai, Jia-Wei; Zhang, Hao; Liu, Hai-Yang published their research in Heterocycles in 2021. The article was titled 《Copper corrole catalyzed esterification of C(sp3)-H with carboxylic acids via cross-dehydrogenative coupling reaction》.Name: 4-Bromobenzoic acid The article contains the following contents:

Copper corrole complex was firstly used as catalyst for oxidative esterification of un-reactive C(sp3)-H bond of cyclic ether and carboxylic acid via cross-dehydrogenative coupling (CDC) reaction using di-tert-Bu peroxide (DTBP) as oxidant. A wide range of carboxylic acids can react with cyclic ether with good to excellent yields, showing copper corrole is a new kind of promising catalyst for CDC reaction. Under gram-level test, the turnover number (TON) may achieve 8400 with 84% yield at only 0.01% catalyst loading, demonstrating its practical uses. The experimental process involved the reaction of 4-Bromobenzoic acid(cas: 586-76-5Name: 4-Bromobenzoic acid)

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.Name: 4-Bromobenzoic acid 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,Nano Letters included an article by Zhang, Lingling; Huang, Liping; Wu, Shanshan; Xu, Xin; Bao, Junhui; Shen, Bowen; Zhang, Liwei; Hou, Yu; Jin, Longyi; Chen, Tie; Yang, Zujin; Lee, Myongsoo; Ji, Hongbing; Huang, Zhegang. Reference of 1,4-Bis(bromomethyl)benzene. The article was titled 《Two-Dimensional Cationic Networks and Their Spherical Curvature with Tunable Opening-Closing》. The information in the text is summarized as follows:

Despite many cationic nanomaterials that have been developed for efficient adsorption of anionic pollutants, tailoring a stable shape with denser cations on the surface for advanced removal capability remains challenging. Here, a new strategy is presented for fabricating two-dimensional (2D) cationic laminas and their curvature based on crosslinking of 2D supramol. networks from hydrogen-bonded trimesic amide derivatives Owing to the distribution of most cations on the surface, two cationic nanostructures from crosslinking of supramol. networks show fast sorption kinetics for anionic pollutants. Notably, the removal capacity of the capsule-like curvature adsorbent is more than twice that of lamina adsorbent for sufficient space around cationic sites in hollow aperture. Moreover, the capsule-like adsorbent is triggered to open and spontaneously release the adsorbed pollutants upon the addition of halogen anions, which can be recovered by subsequent dialysis. Strategy of a capsule-like pocket with tunable opening-closing will provide a new insight for storage and adsorption. In addition to this study using 1,4-Bis(bromomethyl)benzene, there are many other studies that have used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Reference of 1,4-Bis(bromomethyl)benzene) was used in this study.

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.Reference of 1,4-Bis(bromomethyl)benzene The most pervasive is the naturally produced bromomethane.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

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

《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

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

Recommanded Product: 5-Bromobenzo[d][1,3]dioxoleIn 2020 ,《Palladium-catalyzed intermolecular transthioetherification of aryl halides with thioethers and thioesters》 was published in Chemical Science. The article was written by Li, Yahui; Bao, Gao; Wu, Xiao-Feng. The article contains the following contents:

A new palladium-catalyzed intermol. transthioetherification reaction of aryl halides with thioethers and thioesters was developed. The synthetic utility and practicality of this catalytic protocol were demonstrated in a wide range of successful transformations (>70 examples). This catalytic protocol was applicable in carbonylative coupling processes as well, and the first example of carbonylative methylthioesterification of aryl halides was achieved. Notably, this work also provided an approach to using natural products, such as methionine and selenomethionine, as the functional group sources. The experimental part of the paper was very detailed, including the reaction process of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Recommanded Product: 5-Bromobenzo[d][1,3]dioxole)

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.Recommanded Product: 5-Bromobenzo[d][1,3]dioxole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary