Category: 1530-32-1

In 2022,Dong, Yuyang; Shin, Kwangmin; Mai, Binh Khanh; Liu, Peng; Buchwald, Stephen L. published an article in Journal of the American Chemical Society. The title of the article was 《Copper Hydride-Catalyzed Enantioselective Olefin Hydromethylation》.Recommanded Product: 1530-32-1 The author mentioned the following in the article:

The enantioselective installation of a Me group onto a small mol. can result in the significant modification of its biol. properties. While hydroalkylation of olefins represents an attractive approach to introduce alkyl substituents, asym. hydromethylation protocols are often hampered by the incompatibility of highly reactive methylating reagents and a lack of general applicability. Herein, authors report an asym. olefin hydromethylation protocol enabled by CuH catalysis. This approach leverages Me tosylate as a Me source compatible with the reducing base-containing reaction environment, while a catalytic amount of iodide ion transforms the Me tosylate in situ into the active reactant, Me iodide, to promote the hydromethylation. This method tolerates a wide range of functional groups, heterocycles, and pharmaceutically relevant frameworks. D. functional theory studies suggest that after the stereoselective hydrocupration, the methylation step is stereoretentive, taking place through an SN2-type oxidative addition mechanism with Me iodide followed by a reductive elimination. The experimental process involved the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Recommanded Product: 1530-32-1)

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.Recommanded Product: 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vang, Zoua Pa; Reyes, Albert; Sonstrom, Reilly E.; Holdren, Martin S.; Sloane, Samantha E.; Alansari, Isabella Y.; Neill, Justin L.; Pate, Brooks H.; Clark, Joseph R. published their research in Journal of the American Chemical Society in 2021. The article was titled 《Copper-Catalyzed Transfer Hydrodeuteration of Aryl Alkenes with Quantitative Isotopomer Purity Analysis by Molecular Rotational Resonance Spectroscopy》.Name: Ethyltriphenylphosphonium bromide The article contains the following contents:

A copper-catalyzed alkene transfer hydrodeuteration reaction that selectively incorporates one hydrogen and one deuterium atom across an aryl alkene was described. The transfer hydrodeuteration protocol was selective across a variety of internal and terminal alkenes and was also demonstrated on an alkene-containing complex natural product analog. Beyond using 1H, 2H, and 13C NMR anal. to measure reaction selectivity, six transfer hydrodeuteration products were analyzed by mol. rotational resonance (MRR) spectroscopy. The application of MRR spectroscopy to the anal. of isotopic impurities in deuteration chem. was further explored through a measurement methodol. that was compatible with high-throughput sample anal. In the first step, the MRR spectroscopy signatures of all isotopic variants accessible in the reaction chem. were analyzed using a broadband chirped-pulse Fourier transform microwave spectrometer. With the signatures in hand, measurement scripts were created to quant. analyze the sample composition using a com. cavity enhanced MRR spectrometer. The sample consumption was below 10 mg with anal. times on the order of 10 min using this instrument-both representing order-of-magnitude reduction compared to broadband MRR spectroscopy. To date, these measurements represent the most precise spectroscopic determination of selectivity in a transfer hydrodeuteration reaction and confirm that product regioselectivity ratios of >140:1 were achievable under this mild protocol. In the part of experimental materials, we found many familiar compounds, such as Ethyltriphenylphosphonium bromide(cas: 1530-32-1Name: Ethyltriphenylphosphonium bromide)

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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Name: Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and inhibitory effect of cis-guggulsterone on lipopolysaccharide-induced production of nitric oxide in macrophages》 was written by Park, Jun Yeon; Lee, Jae Wook; Lee, Chang-Ho; Lee, Hae-Jeung; Kang, Ki Sung. Electric Literature of C20H20BrPThis research focused ontrans guggulsterone preparation antiinflammatory activity nitric oxide macrophage; COX-2; Guggulsterone; Inflammation; RAW264.7; iNOS. The article conveys some information:

Guggulsterone is a bioactive plant sterol naturally found in migratory plants. It exists in various forms, and its active compounds include the isomers cis-guggulsterone (I, E-GS) and trans-guggulsterone (Z-GS). In this study, the anti-inflammatory effects of these two isomeric pregnadienedione steroids were investigated against lipopolysaccharide-induced inflammatory reaction in RAW264.7 mouse macrophages. Our results showed that both guggulsterones inhibited the production of NO in macrophages treated with lipopolysaccharide, with IC50 values ranging from 3.0 to 6.7μM. E-GS exerted higher efficacy than Z-GS, and its anti-inflammatory effects was mediated through inhibition of iNOS and COX-2 expression. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Electric Literature of C20H20BrP)

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.Electric Literature of C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of Ethyltriphenylphosphonium bromideIn 2020 ,《Unprecedented Selectivity of Ruthenium Iodide Benzylidenes in Olefin Metathesis Reactions》 was published in Angewandte Chemie, International Edition. The article was written by Nechmad, Noy B.; Phatake, Ravindra; Ivry, Elisa; Poater, Albert; Lemcoff, N. Gabriel. The article contains the following contents:

The development of selective olefin metathesis catalysts is crucial to achieving new synthetic pathways. Herein, we show that cis-diiodo/sulfur-chelated ruthenium benzylidenes do not react with strained cycloalkenes and internal olefins, but can effectively catalyze metathesis reactions of terminal dienes. Surprisingly, internal olefins may partake in olefin metathesis reactions once the ruthenium methylidene intermediate has been generated. This unexpected behavior allows the facile formation of strained cis-cyclooctene by the RCM reaction of 1,9-undecadiene. Moreover, cis-1,4-polybutadiene may be transformed into small cyclic mols., including its smallest precursor, 1,5-cyclooctadiene, by the use of this novel sequence. Norbornenes, including the reactive dicyclopentadiene (DCPD), remain unscathed even in the presence of terminal olefin substrates as they are too bulky to approach the diiodo ruthenium methylidene. The exptl. results are accompanied by thorough DFT calculations In addition to this study using Ethyltriphenylphosphonium bromide, there are many other studies that have used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Reference of Ethyltriphenylphosphonium bromide) 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.Reference of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Zhongchao; Chen, Sijia; Tang, Fu; Guo, Kai; Liang, Xin-Ting; Huang, Jun; Yang, Zhen published their research in Journal of the American Chemical Society in 2021. The article was titled 《Total Synthesis of (+)-Cyclobutastellettolide B》.Quality Control of Ethyltriphenylphosphonium bromide The article contains the following contents:

A convenient enantioselective total synthesis of (+)-cyclobutastellettolide B (I) via a strategy that involves a diastereoselective Johnson-Claisen rearrangement, a regioselective cyclopropoxytrimethylsilane ring-opening reaction, and a Norrish-Yang cyclization is described. The results of computational and exptl. studies indicate that the regio- and stereoselectivity of the Norrish-Yang reaction are controlled by the C-H bond dissociation energy and restricted rotation of the C13-C14 bond. In the experiment, the researchers used many compounds, for example, Ethyltriphenylphosphonium bromide(cas: 1530-32-1Quality Control of Ethyltriphenylphosphonium bromide)

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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Quality Control of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application of 1530-32-1In 2022 ,《Catalytic, contra-Thermodynamic Positional Alkene Isomerization》 was published in Journal of the American Chemical Society. The article was written by Occhialini, Gino; Palani, Vignesh; Wendlandt, Alison E.. The article contains the following contents:

The discovery of a dual catalyst system that promotes contra-thermodn. positional alkene isomerization under photochem. irradiation, providing access to terminal alkene isomers, e.g., (2-methylallyl)benzene directly from conjugated, internal alkene, e.g., (2-methylpropenyl)benzene starting materials was reported. The utility of the method is demonstrated in the deconjugation of diverse electron-rich/electron-poor alkenes and through strategic application to natural product synthesis, e.g., (-)-nopinone. Mechanistic studies are consistent with a regiospecific bimol. homolytic substitution (SH2′) mechanism proceeding through an allyl-cobaloxime intermediate. The experimental process involved the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application of 1530-32-1)

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.Application of 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Mumford, Emily M.; Hemric, Brett N.; Denmark, Scott E. published an article in 2021. The article was titled 《Catalytic, Enantioselective Syn-Oxyamination of Alkenes》, and you may find the article in Journal of the American Chemical Society.Product Details of 1530-32-1 The information in the text is summarized as follows:

The chemo-, regio-, diastereo-, and enantioselective 1,2-oxyamination of alkenes R1CH=CHR2 (R1 = n-Pr, Ph, thiophen-3-yl, naphthalen-2-yl, etc.; R2 = i-Pr, (benzyloxy)methyl, (1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)methyl, etc.) using selenium(II/IV) catalysis with a chiral diselenides I (R = tert-Bu, Ph, adamantan-2-yl , naphthalen-2-yl) catalyst is reported. This method uses N-tosylamides R3C(O)NHTs (R3 = 2,6-dimethylphenyl, 2-bromophenyl, naphthalen-1-yl, etc.) to generate oxazoline products syn-II that are useful both as protected 1,2-amino alc. motifs and as chiral ligands. The reaction proceeds in good yields with excellent enantio- and diastereoselectivity for a variety of alkenes and pendant functional groups such as sulfonamides, alkyl halides, and glycol-protected ketones. Furthermore, the rapid generation of oxazoline products syn-II are demonstrated in the expeditious assembly of chiral PHOX ligands as well as diversely protected amino alcs. The results came from multiple reactions, including the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Product Details of 1530-32-1)

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.Product Details of 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Angelucci, Francesco; Cirillo, Davide; Bjoersvik, Hans-Rene published an article in 2022. The article was titled 《Imidazole Backbone Functionalization with Olefin Cross-Metathesis》, and you may find the article in European Journal of Organic Chemistry.Related Products of 1530-32-1 The information in the text is summarized as follows:

A selective and high-rate Ru-catalyzed cross-metathesis reaction of alkenes with vinylimidazole was disclosed. Cross-metathesis was known to operate less efficiently on N-heterocycles, but through optimization by means of statistical exptl. design and multiple regression, optimal reaction conditions were identified that allowed for consistent high-yields without the need of overly complicated set-ups or additives. The method was tested on a series of terminal alkene reagents with a variety of different functional groups and it provides the corresponding target mols. in good to high yields. The results came from multiple reactions, including the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Related Products of 1530-32-1)

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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Related Products of 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Swart, Marthinus R.; Twigge, Linette; Erasmus, Elizabeth; Marais, Charlene; Bezuidenhoudt, Barend C. B. published an article in 2021. The article was titled 《Olefin Metathesis, p-Cresol, and the Second Generation Grubbs Catalyst: Fitting the Pieces》, and you may find the article in European Journal of Inorganic Chemistry.Name: Ethyltriphenylphosphonium bromide The information in the text is summarized as follows:

P-Cresol as additive to the Grubbs second generation catalyst (GII) allows the cross-metathesis of acrylates with prop-1-en-1-ylbenzenes under conditions that only give the prop-1-en-1-ylbenzene self-metathesis product in the absence of cresol. NMR and IR spectroscopy, MALDI-TOF MS and XPS supported the formation of a ruthenium benzylidene with hydrogen bonds between p-cresol and the chloride ligands of GII. XPS furthermore confirmed p-cresol to increase the binding energies of the GII Ru 3d5/2, 3d3/2, 3p3/2 and 3p1/2 photoelectron lines, whereas 1H NMR spectroscopy indicated the carbene carbon and hydrogen to be shielded. It is thus postulated that p-cresol allows for more facile interaction between electron-deficient compounds and the ruthenium benzylidene by decreasing the electron d. on the metal center and increasing the electron d. on the carbene. Safety: toxic thallium compounds In the part of experimental materials, we found many familiar compounds, such as Ethyltriphenylphosphonium bromide(cas: 1530-32-1Name: Ethyltriphenylphosphonium bromide)

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.Name: Ethyltriphenylphosphonium bromide

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