Category: bromides-buliding-blocks

A two-photon turn-on probe for glucose uptake was written by Lim, Chang Su;Chung, Chul;Kim, Hwan Myung;An, Myung Jin;Tian, Yu Shun;Chun, Hoon Jai;Cho, Bong Rae. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2012.HPLC of Formula: 166821-88-1 This article mentions the following:

The authors report a two-photon turn-on probe (AS1) that can be excited by 780 nm femto-second pulses and visualize glucose uptake and the changes in the intracellular glucose concentration in live cells and tissue by two-photon microscopy. In the experiment, the researchers used many compounds, for example, 2-(2-(Bromomethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 166821-88-1HPLC of Formula: 166821-88-1).

2-(2-(Bromomethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 166821-88-1) belongs to organobromine compounds. 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. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.HPLC of Formula: 166821-88-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Intramolecular Alkene-Alkene Coupling via Rh(III)-Catalyzed Alkenyl sp² C-H Functionalization: Divergent Pathways to Indene or α-Naphthol Derivatives was written by Maraswami, Manikantha;Diggins, Thomas;Goh, Jeffrey;Tio, Raymond;Ong, Wan Qing Renee;Hirao, Hajime;Loh, Teck-Peng. And the article was included in ACS Catalysis in 2021.Electric Literature of C10H11BrO2 This article mentions the following:

Highly selective synthesis of either indene or 1-naphthol derivatives through intramol. alkene-alkene cross-coupling is reported. The reaction works with different alkene pairs that couple to give the corresponding products in good to satisfactory yields. The indene products of authors reaction also allow further derivatization. The reaction pathway is dependent on alkene functionalities. In the experiment, the researchers used many compounds, for example, Ethyl (2-bromophenyl)acetate (cas: 2178-24-7Electric Literature of C10H11BrO2).

Ethyl (2-bromophenyl)acetate (cas: 2178-24-7) 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. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Electric Literature of C10H11BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Thiocarbonyl Surrogate via Combination of Potassium Sulfide and Chloroform for Dithiocarbamate Construction was written by Tan, Wei;Jansch, Niklas;Ohlmann, Tina;Meyer-Almes, Franz-Josef;Jiang, Xuefeng. And the article was included in Organic Letters in 2019.Application In Synthesis of 1-(2-Bromoethyl)-4-methoxybenzene This article mentions the following:

An efficient and practical thiocarbonyl surrogate via combination of potassium sulfide and chloroform was established. A variety of dithiocarbamates were afforded along with four new chem. bond formations in a one-pot reaction in which the thiocarbonyl motif was generated in situ. Furthermore, these readily accessed mols. showed promising activity against HDAC8, opening a potential gateway to discover a new type of nonhydroxamate and isoenzyme-selective HDAC inhibitors. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Application In Synthesis of 1-(2-Bromoethyl)-4-methoxybenzene).

1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) 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–bromine bond is electrophilic in nature. 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 In Synthesis of 1-(2-Bromoethyl)-4-methoxybenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthesis and structure-activity relationships of pyrazine-pyridine biheteroaryls as novel, potent, and selective vascular endothelial growth factor receptor-2 inhibitors was written by Kuo, Gee-Hong;Prouty, Catherine;Wang, Aihua;Emanuel, Stuart;DeAngelis, Alan;Zhang, Yan;Song, Fengbin;Beall, Lawrence;Connolly, Peter J.;Karnachi, Prahba;Chen, Xin;Gruninger, Robert H.;Sechler, Jan;Fuentes-Pesquera, Angel;Middleton, Steven A.;Jolliffe, Linda;Murray, William V.. And the article was included in Journal of Medicinal Chemistry in 2005.Synthetic Route of C6H5BrN2O2 This article mentions the following:

There is much evidence that direct inhibition of the kinase activity of vascular endothelial growth factor receptor-2 (VEGFR-2) will result in the reduction of angiogenesis and the suppression of tumor growth. Palladium-catalyzed C-C bond, C-N bond formation reactions were used to assemble various pyrazine-pyridine biheteroaryls as potent VEGFR-2 inhibitors. Among them, I [R = NH(CH₂)₄OH, NH(CH₂)₂NMe₂] exhibited the highest kinase selectivity against fibroblast growth factor receptor kinase, platelet-derived growth factor receptor kinase, and glycogen synthase kinase-3. All of these compounds showed good cellular potency to inhibit VEGF-stimulated proliferation of human umbilical vein endothelial cells (HUVEC) but with modest effects on the unstimulated growth of HUVEC. The low inhibition of these compounds to the growth of tumor cell lines, such as HeLa, HCT-116, and A375 further confirms that these VEGFR-2 inhibitors are not cytotoxic agents. The in vivo antitumor activity of I were demonstrated in the A375 human melanoma xenograft nude mice model. Mol. modeling (QSAR anal.) was conducted in an attempt to rationalize the observed structure-activity relationship. In the experiment, the researchers used many compounds, for example, 6-Amino-5-bromonicotinic acid (cas: 180340-69-6Synthetic Route of C6H5BrN2O2).

6-Amino-5-bromonicotinic acid (cas: 180340-69-6) 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. 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.Synthetic Route of C6H5BrN2O2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lewis Acid-Catalyzed Intramolecular [3+2] Cross-Cycloaddition of Donor-Acceptor Epoxides with Alkenes for Construction of Oxa-[n.2.1] Skeletons was written by Chen, Lu;Tian, Jun;Zhan, Yizhou;Ren, Jun;Wang, Zhong-Wen. And the article was included in Chinese Journal of Chemistry in 2019.COA of Formula: C8H4BrF3O This article mentions the following:

The first LA-catalyzed [3+2] intramol. cross-cycloaddition of GDA-epoxides with carbon-carbon double bonds was developed for construction of bridged oxa-[n.2.1] skeletons I [R¹ = H, 7-F, 7-Me, etc.; R² = R³ = Me, OMe]. In the experiment, the researchers used many compounds, for example, 2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7COA of Formula: C8H4BrF3O).

2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7) 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.COA of Formula: C8H4BrF3O

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Water enables an asymmetric cross reaction of α-keto acids with α-keto esters for the synthesis of quaternary isotetronic acids was written by Chen, Ping;Wang, Kai;Zhang, Boyu;Guo, Wengang;Liu, Yan;Li, Can. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2019.Name: 1-(2-Bromoethyl)-4-methoxybenzene This article mentions the following:

A water promoted asym. aldol/lactonization/enolization cascade reaction of α-keto acids R¹CH₂C(O)C(O)OH (R¹ = H, Me) and α-keto esters R²C(O)C(O)OC(CH₃)₃ [R² = 4-FC₆H₄(CH₂)₂, CH₂=CH(CH₂)₂, C₆H₅CH₂O(CH₂)₃, etc.] was developed, affording the first general protocol for the construction of chiral quaternary isotetronic acids I with excellent enantioselectivity. Theor. results indicate that intramol. ionized enamine intermediates stabilized by water generate zwitterionic transition states in a lower activation energy and higher face selectivity, resulting in high activity and chemo- and enantioselectivity. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Name: 1-(2-Bromoethyl)-4-methoxybenzene).

1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) 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. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Name: 1-(2-Bromoethyl)-4-methoxybenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthetic Control of Spectroscopic and Photophysical Properties of Triarylborane Derivatives Having Peripheral Electron-Donating Groups was written by Ito, Akitaka;Kawanishi, Kazuyoshi;Sakuda, Eri;Kitamura, Noboru. And the article was included in Chemistry – A European Journal in 2014.Application of 100189-84-2 This article mentions the following:

The spectroscopic and photophys. properties of triarylborane derivatives were controlled by the nature of the triarylborane core (trixylyl- or trianthrylborane) and peripheral electron-donating groups (N,N-diphenylamino or 9H-carbazolyl groups). The triarylborane derivatives with and without the electron-donating groups showed intramol. charge-transfer absorption/fluorescence transitions between the π orbital of the aryl group (π(aryl)) and the vacant p orbital on the boron atom (p(B), π(aryl)-p(B) CT), and the fluorescence color was tunable from blue to red by the combination of peripheral electron-donating groups and a triarylborane core. Detailed electrochem., spectroscopic, and photophys. studies of the derivatives, including solvent dependences of the spectroscopic and photophys. properties, demonstrated that the HOMO and LUMO of each derivative were determined primarily by the nature of the peripheral electron-donating group and the triarylborane core, resp. The effects of solvent polarity on the fluorescence quantum yield and lifetime of the derivatives were also tunable by the choice of the triarylborane core. In the experiment, the researchers used many compounds, for example, 2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2Application of 100189-84-2).

2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2) 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. Application of 100189-84-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Single-Handed Double Helix and Spiral Platelet Formed by Racemate of Dissymmetric Cages was written by Liu, Xiaoning;Shi, Zheng;Xie, Mingchen;Xu, Jianping;Zhou, Zhifan;Jung, Sinyeong;Cui, Guijia;Zuo, Yong;Li, Tao;Yu, Chunyang;Liu, Zhiqiang;Zhang, Shaodong. And the article was included in Angewandte Chemie, International Edition in 2021.Application of 96761-85-2 This article mentions the following:

Spontaneous deracemization has been used to sep. homochiral domains from the racemic system. However, homochirality can only be referred to when the scales of these domains and systems are specified. To clarify this, we report self-assembly of racemates of dissym. cages DC-1 (I) with a cone-shape propeller geometry, forming a centrosym. columnar crystalline phase (racemic at crystallog. level). Owing to their anisotropic geometry, the two enantiomers are packed in a frustrated fashion in this crystalline phase; single-handed double helixes are observed (single-handedness at supramol. level). The frustrated packing (layer continuity break-up) in turn facilitates screw dislocation during the crystal growth, forming left- or right-handed spiral platelets (symmetry-breaking at morphol. level), although each platelet is composed of DC-1 racemates. The symmetry correlation between DC-1 mols., the crystalline phase and spiral platelets, all exhibit C₃ symmetry. In the experiment, the researchers used many compounds, for example, 3,3”-Dibromo-5′-(3-bromophenyl)-1,1′:3′,1”-terphenyl (cas: 96761-85-2Application of 96761-85-2).

3,3”-Dibromo-5′-(3-bromophenyl)-1,1′:3′,1”-terphenyl (cas: 96761-85-2) 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. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Application of 96761-85-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

GC-Targeted C8-Linked Pyrrolobenzodiazepine-Biaryl Conjugates with Femtomolar in Vitro Cytotoxicity and in Vivo Antitumor Activity in Mouse Models was written by Rahman, Khondaker M.;Jackson, Paul J. M.;James, Colin H.;Basu, B. Piku;Hartley, John A.;de la Fuente, Maria;Schatzlein, Andreas;Robson, Mathew;Pedley, R. Barbara;Pepper, Chris;Fox, Keith R.;Howard, Philip W.;Thurston, David E.. And the article was included in Journal of Medicinal Chemistry in 2013.Category: bromides-buliding-blocks This article mentions the following:

DNA binding 4-(1-methyl-1H-pyrrol-3-yl)benzenamine (MPB) building blocks have been developed that span two DNA base pairs with a strong preference for GC-rich DNA. They have been conjugated to a pyrrolo[2,1-c][1,4]benzodiazepine (PBD) mol. to produce C8-linked PBD-MPB hybrids that can stabilize GC-rich DNA by up to 13-fold compared to AT-rich DNA. Some have subpicomolar IC₅₀ values in human tumor cell lines and in primary chronic lymphocytic leukemia cells, while being up to 6 orders less cytotoxic in the non-tumor cell line WI38, suggesting that key DNA sequences may be relevant targets in these ultrasensitive cancer cell lines. One conjugate, I (KMR-28-39), which has femtomolar activity in the breast cancer cell line MDA-MB-231, has significant dose-dependent antitumor activity in MDA-MB-231 (breast) and MIA PaCa-2 (pancreatic) human tumor xenograft mouse models with insignificant toxicity at therapeutic doses. Preliminary studies suggest that I may sterically inhibit interaction of the transcription factor NF-κB with its cognate DNA binding sequence. In the experiment, the researchers used many compounds, for example, Methyl 4-bromo-1-methyl-1H-pyrrole-2-carboxylate (cas: 1196-90-3Category: bromides-buliding-blocks).

Methyl 4-bromo-1-methyl-1H-pyrrole-2-carboxylate (cas: 1196-90-3) 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–bromine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Highly Regioselective Isoquinoline Synthesis via Nickel-Catalyzed Iminoannulation of Alkynes at Room Temperature was written by Sun, Jian-Guo;Zhang, Xiao-Yu;Yang, Hua;Li, Ping;Zhang, Bo. And the article was included in European Journal of Organic Chemistry in 2018.Category: bromides-buliding-blocks This article mentions the following:

A simple and cost-efficient nickel catalytic system for the annulation of 2-haloaldimines with alkynes to synthesize 3,4-disubstituted and 3-substituted isoquinolines at room temperature has been developed. The air-stable and inexpensive Ni(dppe)Cl₂ was employed as a precatalyst, and Et₃N was found to be an essential additive for obtaining high yields. By using this nickel catalytic system one-pot three-component direct synthesis of isoquinolines starting with simple 2-halobenzaldehydes, tert-butylamine, and alkynes were also achieved. These reactions occur in moderate to excellent yields with complete regioselectivity. Moreover, these reactions feature a broad substrate scope, easy scalability, operational simplicity, and excellent practicality. In the experiment, the researchers used many compounds, for example, 2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7Category: bromides-buliding-blocks).

2-Bromo-4-(trifluoromethyl)benzaldehyde (cas: 85118-24-7) belongs to organobromine compounds. 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. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary