Category: bromides-buliding-blocks

In 2019,Chemical Communications (Cambridge, United Kingdom) included an article by Guo, Lei; Xu, Chen; Wu, Ding-Chuan; Hu, Guang-Qi; Zhang, Hong-Hai; Hong, Kunlun; Chen, Su; Liu, Xiang. Recommanded Product: (Bromomethyl)cyclopropane. The article was titled 《Cascade alkylation and deuteration with aryl iodides via Pd/norbornene catalysis: an efficient method for the synthesis of congested deuterium-labeled arenes》. The information in the text is summarized as follows:

An efficient approach for the synthesis of congested deuterium-labeled arenes, e.g., I via cascade alkylation and deuteration with aryl iodides was disclosed. The adoption of sodium formate-d as a deuterium source was the key for achieving high deuterium incorporation >98%. In the experiment, the researchers used many compounds, for example, (Bromomethyl)cyclopropane(cas: 7051-34-5Recommanded Product: (Bromomethyl)cyclopropane)

(Bromomethyl)cyclopropane(cas: 7051-34-5) is used as a synthetic building block for the introduction of the cyclopropylmethyl group. It was also used in the synthesis of 1,4-dienes via iron-catalyzed cross-coupling with alkenyl Grignard reagents.Recommanded Product: (Bromomethyl)cyclopropane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Angewandte Chemie, International Edition included an article by Anamimoghadam, Ommid; Cooper, James A.; Nguyen, Minh T.; Guo, Qing-Hui; Mosca, Lorenzo; Roy, Indranil; Sun, Junling; Stern, Charlotte L.; Redfern, Louis; Farha, Omar K.; Stoddart, J. Fraser. Application In Synthesis of 1,4-Bis(bromomethyl)benzene. The article was titled 《Cyclotris(paraquat-p-phenylenes)》. The information in the text is summarized as follows:

Reported here is the synthesis, solid-state characterization, and redox properties of new triangular, threefold sym., viologen-containing macrocycles. Cyclotris(paraquat-p-phenylene) (CTPQT6+) and cyclotris(paraquat-p-1,4-dimethoxyphenylene) (MCTPQT6+) were prepared and their X-ray single-crystal (super)structures reveal intricate three-dimensional packing. MCTPQT6+ results in nanometer-sized channels, in contrast with its parent counterpart CTPQT6+ which crystallizes as a couple of polymorphs in the form of intercalated assemblies. In the solid state, MCTPQT3(.+) exhibits stacks between the 1,4-dimethoxyphenylene and bipyridinium radical cations, providing new opportunities for the manipulation and control of the recognition motif associated with viologen radical cations. These redox-active cyclophanes demonstrate that geometry-matching and weak intermol. interactions are of paramount importance in dictating the formation of their intricate solid-state superstructures. After reading the article, we found that the author used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Application In Synthesis of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Application In Synthesis of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Organic Chemistry Frontiers included an article by Koffi Teki, Dindet Steve-Evanes; Bil, Abed; Moreau, Vincent; Chagnault, Vincent; Fante, Bamba; Adjou, Ane; Kovensky, Jose. COA of Formula: C13H17BrO9. The article was titled 《Synthesis of multivalent S-glycoside analogs of a heparan sulfate sequence》. The information in the text is summarized as follows:

Glycosaminoglycans (GAGs) are involved in the regulation of a large number of biol. processes such as inflammation, cell signaling, angiogenesis, viral infection and coagulation. Unlike mols. isolated from tissues, pure mols., derived from organic synthesis, can prevent side effects and are very useful tools for understanding the structure-activity relationships of many biol. and pharmacol. activities. In our research group, we focus particularly on the synthesis of multivalent thioglycoside analogs. In this article, we report on the synthesis of new glycoclusters with thiodisaccharide units, S-analogs of heparan sulfate. The thiodisaccharide analog was obtained by nucleophilic displacement of a 4-triflate galactoside derivative, by an anomeric thiol of a glucuronic acid precursor. After modifying the aglycon part to introduce an azide, the thiodisaccharide was coupled to maltotriose scaffolds carrying one, two or three propargyl groups by CuAAC. After reading the article, we found that the author used (2R,3R,4S,5S,6S)-2-Bromo-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate(cas: 21085-72-3COA of Formula: C13H17BrO9)

(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.COA of Formula: C13H17BrO9

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2004,Curtin, Michael L.; Frey, Robin R.; Heyman, H. Robin; Sarris, Kathy A.; Steinman, Douglas H.; Holmes, James H.; Bousquet, Peter F.; Cunha, George A.; Moskey, Maria D.; Ahmed, Asma A.; Pease, Lori J.; Glaser, Keith B.; Stewart, Kent D.; Davidsen, Steven K.; Michaelides, Michael R. published 《Isoindolinone ureas: a novel class of KDR kinase inhibitors》.Bioorganic & Medicinal Chemistry Letters published the findings.HPLC of Formula: 76006-33-2 The information in the text is summarized as follows:

A series of substituted isoindolinone ureas was prepared and evaluated for enzymic and cellular inhibition of KDR kinase activity. Several of these analogs, such as I, are potent inhibitors of KDR both enzymically (<50 nM) and cellularly (≤100 nM). A 3D KDR/CDK2/MAP kinase overlay model with several structurally related tyrosine kinase inhibitors was used to predict the binding interactions of the isoindolinone ureas with the KDR active site. The experimental process involved the reaction of 3-Bromo-2-methylbenzoic acid(cas: 76006-33-2HPLC of Formula: 76006-33-2)

3-Bromo-2-methylbenzoic acid(cas: 76006-33-2) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.HPLC of Formula: 76006-33-2 Organobromine compounds have fallen under increased scrutiny for their environmental impact.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Cyclic peptides as selective substrates and suicide substrate precursors of trypsin-like proteinases》 were Boggetto, Nicole; Vilain, Anne Cecile; Montagne, Jean Jacuqes; Reboud-Ravaux, Michele; Mazaleyrat, Jean Paul; Xie, Juan; Wakselman, Michel. And the article was published in Bulletin de la Societe Chimique de France in 1994. SDS of cas: 88071-91-4 The author mentioned the following in the article:

Cyclopeptides of general formula c[P1-aB(CH2X)-Gly4], in which P1 is arginine or lysine and aB(CH2X) an ortho- or meta-aminobenzoic acid residue substituted in the para position to the nitrogen atom by a Me (X = H), a phenoxymethyl (X = OC6H5) or an acetoxymethyl (X = OCOCH3) group, have been evaluated as substrates and/or inhibitors of serine proteinases. These compounds are selective substrates of trypsin-like enzymes (urokinase, plasmin, thrombin). The presence of lysine or arginine at the P1 position induces a selective cleavage of the P1-P’1 anilide bond. The efficiency of the enzymic hydrolysis is generally higher for cyclopeptides containing a meta rather than an ortho-aminobenzoic acid residue. The arginine derivatives are more easily cleaved by urokinase (u-PA) than their lysine analogs. No hydrolysis is observed in the presence of t-PA. The compounds with X = OC6H5 or OCOCH3 are the most reactive substrates. In spite of the presence of the phenolate or acetate latent nucleofugal substituent, which could induce the formation of an electrophilic quinonium methide moiety, they fail to inactivate the studied proteases. However, substitution of X by better latent leaving groups makes these compounds immediate precursors of suicide substrates, in particular of urokinase, an enzyme involved in the process of metastasis. In the experiment, the researchers used Methyl 5-(bromomethyl)-2-nitrobenzoate(cas: 88071-91-4SDS of cas: 88071-91-4)

Methyl 5-(bromomethyl)-2-nitrobenzoate(cas: 88071-91-4) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.SDS of cas: 88071-91-4 The most pervasive is the naturally produced bromomethane.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Total Synthesis of (+)-Oxo-tomaymycin》 was written by Benedetti, Francoise; Perrin, Marc-Antoine; Bosc, Sebastien; Chouteau, Franck; Champion, Nicolas; Bigot, Antony. COA of Formula: C20H20BrPThis research focused ontomaymycin oxo total synthesis chemoselective reduction cyclization. The article conveys some information:

(+)-Oxo-tomaymycin (I), a naturally occurring substance of the pyrrolo-1,4-benzodiazepine family, was synthesized using a short and efficient route. The key construction of the seven-membered ring by amide bond formation was realized via a chemoselective Aryl-NO2 reduction using TiCl3 under acidic conditions, followed by a spontaneous cyclization. This synthesis was easily scaled up to 80 g, and it should be amenable to the production of larger quantities.Ethyltriphenylphosphonium bromide(cas: 1530-32-1COA of Formula: C20H20BrP) was used in this study.

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.COA of Formula: C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Maddirala, Amarendar Reddy; Klein, Roger; Pinkner, Jerome S.; Kalas, Vasilios; Hultgren, Scott J.; Janetka, James W. published an article on January 24 ,2019. The article was titled 《Biphenyl Gal and GalNAc FmlH Lectin Antagonists of Uropathogenic E. coli (UPEC): Optimization through Iterative Rational Drug Design》, and you may find the article in Journal of Medicinal Chemistry.Related Products of 1214323-39-3 The information in the text is summarized as follows:

The F9/Yde/Fml pilus, tipped with the FmlH adhesin, has been shown to provide uropathogenic Escherichia coli (UPEC) a fitness advantage in urinary tract infections (UTIs). Here, the authors used X-ray structure guided design to optimize our previously described ortho-biphenyl Gal and GalNAc FmlH antagonists by replacing the carboxylate with a sulfonamide. Other groups which can accept H-bonds were also tolerated. The authors pursued further modifications to the biphenyl aglycon resulting in significantly improved activity. Two of the most potent compounds (IC50 = 0.051 μM) and (IC50 = 0.034 μM), exhibited excellent metabolic stability in mouse plasma and liver microsomes but showed only limited oral bioavailability (<1%) in rats. Another compound also showed a good pharmacokinetic (PK) profile in mice after IP dosing with compound exposure above the IC50 for 6 h. These new FmlH antagonists represent new antivirulence drugs for UTIs. In addition to this study using 2-Bromo-3-(trifluoromethyl)phenol, there are many other studies that have used 2-Bromo-3-(trifluoromethyl)phenol(cas: 1214323-39-3Related Products of 1214323-39-3) was used in this study.

2-Bromo-3-(trifluoromethyl)phenol(cas: 1214323-39-3) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Related Products of 1214323-39-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 583-69-7On May 31, 2019, Li, Yang-Yang; Liu, Hong; Xu, Ying; Zhou, Ning-Yi published an article in International Biodeterioration & Biodegradation. The article was 《A two-component monooxygenase initiates a novel 2-bromo-4-nitrophenol catabolic pathway in newly isolated Cupriavidus sp. strain NyZ375》. The article mentions the following:

As a vital byproduct of chem. intermediates for pesticides and cytotoxin inhibitors, 2-bromo-4-nitrophenol (2B4NP) is toxic to aquatic life. However, bacterial cultures mineralizing 2B4NP have not been reported. In this study, Cupriavidus sp. strain NyZ375 was isolated from aromatics-polluted soil and identified by 16S rRNA gene sequencing. Via an oxidative pathway, it grows on 120μM 2B4NP as the only carbon source, releasing approx. equivalent amount of nitrite. Three genes (bnpABC) in a 4.8-kb DNA fragment from a draft genome was found to be responsible for the initial reactions in 2B4NP degradation BnpAB are the monooxygenase and flavin reductase components, resp., catalyzing the monooxygenation of 2B4NP to bromohydroquinone (BHQ, 63%) and 1,2,4-benzenetriol (BT, 37%) with concomitant nitrite release, in the presence of NADH and FAD. BnpC is a hydroxyquinol 1,2-dioxygenase catalyzing the ring-cleavage oxidation of BT to maleylacetate. The byproduct BHQ was not further degraded by strain NyZ375 but was not toxic to its growth at a concentration of 100μM. It can be tentatively concluded that BnpAB is evolutionary close to the 2,4,6-trichlorophenol monooxygenase TcpAX from Cupriavidus necator JMP134. The 2B4NP catabolism by this new isolate illustrates a pathway distinct from those of all identified 2-chloro-4-nitrophenol utilizers. In addition to this study using 2-Bromobenzene-1,4-diol, there are many other studies that have used 2-Bromobenzene-1,4-diol(cas: 583-69-7Product Details of 583-69-7) was used in this study.

2-Bromobenzene-1,4-diol(cas: 583-69-7) 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.Product Details of 583-69-7

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenylOn November 12, 2004 ,《A palladium(II)-clipped aromatic sandwich》 appeared in Angewandte Chemie, International Edition. The author of the article were Kumazawa, Kazuhisa; Yamanoi, Yoshinori; Yoshizawa, Michito; Kusukawa, Tukahiro; Fujita, Makoto. The article conveys some information:

A π-stacked host-guest system in which large aromatic guests are sandwiched by metal-clipped π-conjugated ligands was prepared by self-assembly. The ligand 1 is a roughly 2-nm-sized hexagonal planar mol. that consists of ten aromatic rings with 6 pyridyl donor sites at the periphery. Upon complexation with [(en)Pd(NO3)2] (en = ethylenediamine) this ligand is assembled to give large 2-dimensional receptors. In the presence of D3h-sym. guests (2) sandwich complexes [2⊂3]12+, where 312+ (the host) has a composition [{(ethylenediamine)Pd}6(1)2]12+. The guest mol. is wrapped by 2 ligands whose pyridyl donor sites are fully clipped by 6 {(en)Pd}2+ units at the rim of the structure. The experimental part of the paper was very detailed, including the reaction process of 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8Reference of 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl)

3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8) 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. Reference of 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Thermotropic Columnar Liquid Crystals Based on Wedge-Shaped Phenylphosphonic Acids》 was written by Kumar, K. R. Sunil; Gupta, Monika; Sakamoto, Takeshi; Kato, Takashi. Quality Control of 1-Bromo-3,4,5-trimethoxybenzeneThis research focused onwedge shaped phenylphosphonic acid thermotropic columnar liquid crystal. The article conveys some information:

Wedge-shaped phenylphosphonic acids with variation in the peripheral alkoxy chains have been synthesized. These derivatives show a hexagonal columnar liquid-crystalline behavior upon thermal treatment. These materials have potential to be used as efficient anisotropic proton conductors. In addition to this study using 1-Bromo-3,4,5-trimethoxybenzene, there are many other studies that have used 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Quality Control of 1-Bromo-3,4,5-trimethoxybenzene) was used in this study.

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.Quality Control of 1-Bromo-3,4,5-trimethoxybenzene1-Bromo-3,4,5-trimethoxybenzene can be used to synthesize analogs of HA14-1, which shows promising anticancer properties.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary