Category: 1530-32-1

《Unlocking the 5-exo Pathway with the AuI-Catalyzed Alkoxycyclization of 1,3-Dien-5-ynes》 was published in Chemistry – A European Journal in 2020. These research results belong to Virumbrales, Cintia; Suarez-Pantiga, Samuel; Marin-Luna, Marta; Silva Lopez, Carlos; Sanz, Roberto. Recommanded Product: 1530-32-1 The article mentions the following:

The first general regio- and stereoselective 5-exo gold(I)-catalyzed alkoxycyclization of a specific class of 1,5-enynes such as 1,3-dien-5-ynes was described, despite 1,5-enynes being known to almost invariably proceed via endo cyclizations under gold-catalysis. The configuration of the terminal alkene in the starting 1,3-dien-5-yne played a crucial role on the regiochem. outcome of the reaction. A wide variety of interesting alkoxy-functionalized alkylidenecyclopentenes was synthesized from 1-monosubstituted (E)-1,3-dien-5-ynes. On the contrary, the corresponding Z isomers evolve affording formal 6-endo cyclization products. In addition, mechanistic exploration supports a highly stabilized carbocation as a key intermediate instead of a highly constrained cyclopropyl gold carbene from E isomers, and also accounts for the well differentiated reactivity observed between both E/Z geometrical isomers as well as for the stereochem. outcome of the reaction. In the experiment, the researchers used 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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Recommanded Product: 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Mandal, Tanumoy; Azim, Aznur; Das, Sanju; De Sarkar, Suman published an article in 2022. The article was titled 《Organophotoredox Catalyzed Stereoselective Nitration of Olefins with tert-Butyl Nitrite under Air》, and you may find the article in Asian Journal of Organic Chemistry.Application In Synthesis of Ethyltriphenylphosphonium bromide The information in the text is summarized as follows:

An efficient method for the E-selective synthesis of nitroolefins was developed by employing DDQ as the organophotoredox catalyst in combination with tert-BuONO (TBN) as a nitrating agent under visible-light irradiation This green transition metal-free approach utilizes aerial oxygen as the terminal oxidant and occurs at room temperature Following the established protocol, 41 different olefines containing broad diversity of substituents were nitrated in good to excellent yields. Mechanistic experiments and photophys. studies revealed the probable mechanism. In the experiment, the researchers used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application In Synthesis 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.Application In Synthesis of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Gao, Jihui; Jiao, Mingdong; Ni, Jie; Yu, Rongrong; Cheng, Gui-Juan; Fang, Xianjie published an article in 2021. The article was titled 《Nickel-Catalyzed Migratory Hydrocyanation of Internal Alkenes: Unexpected Diastereomeric-Ligand-Controlled Regiodivergence》, and you may find the article in Angewandte Chemie, International Edition.Synthetic Route of C20H20BrP The information in the text is summarized as follows:

A regiodivergent nickel-catalyzed hydrocyanation of a broad range of internal alkenes involving a chain-walking process is reported. When appropriate diastereomeric biaryl diphosphite ligands are applied, the same starting materials can be converted to either linear or branched nitriles with good yields and high regioselectivities. DFT calculations suggested that the catalyst architecture determines the regioselectivity by modulating electronic and steric interactions. In addition, moderate enantioselectivities were observed when branched nitriles were produced. After reading the article, we found that the author used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Synthetic Route 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.Synthetic Route of C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application In Synthesis of Ethyltriphenylphosphonium bromideIn 2020 ,《Influence of Small Molecular Property on Antibody Response》 was published in Journal of Agricultural and Food Chemistry. The article was written by Wen, Kai; Bai, Yuchen; Wei, Yujie; Li, Chenglong; Shen, Jianzhong; Wang, Zhanhui. The article contains the following contents:

Antibodies with high titer and affinity to small mols. are critical in the field of vaccines against drugs of abuse, antidotes to toxins, and immunoassays for compounds However, little is known regarding how properties of small mols. have influence and which mol. descriptors could indicate the degree of the antibody response. On the basis of our previous study, we designed and synthesized two groups of hapten mols. with varied hydrophobicity to investigate the relationship between the properties of the small mols. and the antibody response in terms of titer and affinity. We found that the magnitude of the antibody response was pos. correlated with the degree of mol. hydrophobicity and related descriptors. This study provides insight into the immunol. characteristics of small mols. themselves and useful clues to produce high-quality antibodies against small mols. After reading the article, we found that the author used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application In Synthesis 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. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Application In Synthesis of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Angewandte Chemie, International Edition included an article by Yi, Xiangli; Hu, Xile. Name: Ethyltriphenylphosphonium bromide. The article was titled 《Formal Aza-Wacker Cyclization by Tandem Electrochemical Oxidation and Copper Catalysis》. The information in the text is summarized as follows:

An approach to transform electrochem. generated organic radical intermediates into neutral products e.g., I by reaction with a metal catalyst was described. This approach combines electrochem. oxidation with Cu catalysis to effect formal aza-Wacker cyclization of internal alkenes e.g., crotyl N-phenylcarbamate. The Cu catalyst is essential for transforming secondary and primary alkyl radical intermediates into alkenes. A wide range of 5-membered N-heterocycles can be prepared under mild conditions. In the experiment, the researchers used many compounds, for example, 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

Liu, Xufang; Rong, Xianle; Liu, Shihan; Lan, Yu; Liu, Qiang published an article in 2021. The article was titled 《Cobalt-Catalyzed Desymmetric Isomerization of Exocyclic Olefins》, and you may find the article in Journal of the American Chemical Society.Application of 1530-32-1 The information in the text is summarized as follows:

Chiral cyclic olefins, 1-methylcyclohexenes, are versatile building blocks for the synthesis of pharmaceuticals and natural products. Despite the prevalence of these structural motifs, the development of efficient synthetic methods remains an unmet challenge. Herein the authors report a novel desym. isomerization of exocyclic olefins using a series of newly designed chiral cobalt catalysts, which enables a straightforward construction of chiral 1-methylcyclohexenes with diversified functionalities. The synthetic utility of this methodol. is highlighted by a concise and enantioselective synthesis of a natural product, β-bisabolene. The versatility of the reaction products is further demonstrated by multifarious derivatization. In addition to this study using Ethyltriphenylphosphonium bromide, there are many other studies that have used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application of 1530-32-1) 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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Application of 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electric Literature of C20H20BrPIn 2022 ,《Enantio- and Regioselective Ni-Catalyzed para-C-H Alkylation of Pyridines with Styrenes via Intermolecular Hydroarylation》 appeared in Journal of the American Chemical Society. The author of the article were Ma, Jun-Bao; Zhao, Xia; Zhang, Dongju; Shi, Shi-Liang. The article conveys some information:

Herein the first enantioselective para-C-H activation of pyridines through the use of a Ni-Al bimetallic catalyst system and N-heterocyclic carbene (NHC) ligand for intermol. hydroarylation of styrenes was described. The reaction proceeded in high to excellent enantioselectivities (up to 98.5:1.5 er) and high site-selectivities for both styrene and pyridine components (up to >98:2). Consequently, a broad range of enantioenriched 1,1-diarylalkanes containing pyridine moieties could be prepared in a single step with 100% atom economy. Computational studies supported a mechanism involving a ligand-to-ligand H-transfer (LLHT) and reductive elimination sequence, with LLHT being the rate- and enantioselectivity-determining step. DFT studies indicated that the π-π stacking interaction between the NHC aryl fragment and trans-styrenes was critical for high reactivity and enantiocontrol.Ethyltriphenylphosphonium bromide(cas: 1530-32-1Electric Literature of 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.Electric Literature of C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Hui-Yi; Yao, Ya-Hong; Chen, Ming; Ren, Zhi-Hui; Guan, Zheng-Hui published their research in Journal of the American Chemical Society in 2021. The article was titled 《Palladium-Catalyzed Markovnikov Hydroaminocarbonylation of 1,1-Disubstituted and 1,1,2-Trisubstituted Alkenes for Formation of Amides with Quaternary Carbon》.Application In Synthesis of Ethyltriphenylphosphonium bromide The article contains the following contents:

Hydroaminocarbonylation of alkenes is one of the most promising yet challenging methods for the synthesis of amides. Herein, we reported the development of a novel and effective Pd-catalyzed Markovnikov hydroaminocarbonylation of 1,1-disubstituted or 1,1,2-trisubstituted alkenes with aniline hydrochloride salts to afford amides bearing an α quaternary carbon. The reaction makes use of readily available starting materials, tolerates a wide range of functional groups, and provides a facile and straightforward approach to a diverse array of amides bearing an α quaternary carbon. Mechanistic investigations suggested that the reaction proceeded through a palladium hydride pathway. The hydropalladation and CO insertion are reversible, and the aminolysis is probably the rate-limiting step. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application In Synthesis 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.Application In Synthesis of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Meng, Lingpu; Yang, Jingjie; Duan, Mei; Wang, You; Zhu, Shaolin published an article in 2021. The article was titled 《Facile Synthesis of Chiral Arylamines, Alkylamines and Amides by Enantioselective NiH-Catalyzed Hydroamination》, and you may find the article in Angewandte Chemie, International Edition.Formula: C20H20BrP The information in the text is summarized as follows:

Regio- and enantioselective hydroarylamination, hydroalkylamination and hydroamidation of styrenes was developed by NiH catalysis with a simple bioxazoline ligand under mild conditions. A wide range of enantioenriched benzylic arylamines, alkylamines and amides was easily accessed by nitroarenes, hydroxylamines and dioxazolones, resp. as amination reagents. The chiral induction in these reactions was proposed to proceed through an enantiodifferentiating syn-hydronickellation step. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Formula: 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. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Formula: C20H20BrP

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Safety of Ethyltriphenylphosphonium bromideIn 2021 ,《Ruthenium Removal Using Silica-Supported Aromatic Isocyanides》 was published in Journal of Organometallic Chemistry. The article was written by Gregg, Zackary R.; Glickert, Elise; Xu, Ruoshui; Diver, Steven T.. The article contains the following contents:

New silica gel scavengers containing aromatic isocyanides have been synthesized and evaluated for Ru removal. A thiol-ene click reaction was used to attach the isocyanide precursor to a thiol-containing siloxane. Conventional methods for grafting to silica gel at elevated temperature resulted in significant hydrolysis of the isocyanide. A novel cleavage reaction was developed to quantitate the amount of surface-loaded isocyanide. Binding by the new materials was comparatively evaluated for a variety or Ru carbene catalysts. The optimal conditions were extended to two ring-closing metatheses (RCM). The residual Ru was determined by inductively coupled plasma mass spectrometry (ICP-MS). For facile RCM reactions, the UV data agreed with the ICP-MS results. However, more difficult RCM did not correlate well with the UV data. This was interpreted in terms of varying extent of catalyst decomposition In all cases, isocyanide scavenger reagents were found to be superior to commonly used silica gel-based metal scavengers. The experimental process involved the reaction of Ethyltriphenylphosphonium bromide(cas: 1530-32-1Safety 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. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Safety of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary