Tag: 300-400

One-Pot Synthesis of Arylboronic Acids and Aryl Trifluoroborates by Ir-Catalyzed Borylation of Arenes was written by Murphy, Jaclyn M.;Tzschucke, C. Christoph;Hartwig, John F.. And the article was included in Organic Letters in 2007.Quality Control of Potassium 3,5-dibromophenyltrifluoroborate The following contents are mentioned in the article:

The synthesis of arylboronic acids and aryl trifluoroborates in a one-pot sequence by Ir-catalyzed borylation of arenes is reported. To prepare the arylboronic acids, the Ir-catalyzed borylation is followed by oxidative cleavage of the boronic ester with NaIO₄ and to prepare the aryltrifluoroborate, the Ir-catalyzed borylation is followed by displacement of pinacol by KHF₂. These two-step sequences give products that are more reactive toward subsequent chem. than the initially formed pinacol boronates. This study involved multiple reactions and reactants, such as Potassium 3,5-dibromophenyltrifluoroborate (cas: 929626-21-1Quality Control of Potassium 3,5-dibromophenyltrifluoroborate).

Potassium 3,5-dibromophenyltrifluoroborate (cas: 929626-21-1) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. 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.Quality Control of Potassium 3,5-dibromophenyltrifluoroborate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Effective Na⁺ fluorescent sensing by new podand-type receptor connecting two pyrene units and diphenyl ether was written by Nishimura, Yukihiro;Takemura, Tetsuo;Arai, Sadao. And the article was included in ARKIVOC (Gainesville, FL, United States) in 2009.Reference of 80480-15-5 The following contents are mentioned in the article:

A new podand-type receptor for Na⁺ detection was synthesized by connecting two 1-pyrenecarbonylmethyl groups with two hydroxy groups of 2,2′-dihydroxydiphenyl ether. With the addition of Na⁺ at 20-200 μM, the increasing monomer emission (423 nm) and the decreasing excimer emission (524 nm) of pyrene were observed In contrast with the receptor, the fluorescence spectra of the corresponding compound obtained from 2,2′-dihydroxydiphenylmethane are only slightly affected by the addition of Na⁺. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Reference of 80480-15-5).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) 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). The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Reference of 80480-15-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Solid-Phase S-Alkylation Promoted by Molecular Sieves was written by Calce, Enrica;Leone, Marilisa;Mercurio, Flavia Anna;Monfregola, Luca;De Luca, Stefania. And the article was included in Organic Letters in 2015.Safety of 2-Bromo-1-(pyren-1-yl)ethanone The following contents are mentioned in the article:

A solid-phase S-alkylation procedure to introduce chem. modification on the cysteine sulfhydryl group of a peptidyl resin is reported. The reaction is promoted by activated mol. sieves and consists of a solid-solid process, since both the catalyst and the substrate are in a solid state. The procedure was revealed to be efficient and versatile, particularly when used in combination with the solution S-alkylation approach, allowing for the introduction of different mol. diversities on the same peptide mol. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Safety of 2-Bromo-1-(pyren-1-yl)ethanone).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. 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.Safety of 2-Bromo-1-(pyren-1-yl)ethanone

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Quantitative Synthesis and Formation of Cyclopenta[cd]pyrene 3,4-Oxide under Simulated Atmospheric Conditions was written by Murray, Robert W.;Singh, Megh. And the article was included in Chemical Research in Toxicology in 1995.Product Details of 80480-15-5 The following contents are mentioned in the article:

Cyclopenta[cd]pyrene 3,4-oxide has been synthesized in a one-step, quant. reaction using dimethyldioxirane. The oxide, or its thermal rearrangement products cyclopenta[cd]pyren-3(4H)-one and cyclopenta[cd]pyren-4(3H)-one, is formed from cyclopenta[cd]pyrene(I) under simulated environmental conditions. In one case these products are formed when I is adsorbed on model particulates and then exposed to the reaction products of tetramethylethylene and ozone in the gas phase. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Product Details of 80480-15-5).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) 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). 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.Product Details of 80480-15-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

An efficient and convenient transformation of α-haloketones to α-hydroxyketones using cesium formate was written by Wong, Fung Fuh;Chang, Po-Wei;Lin, Hui-Chang;You, Bang-Jau;Huang, Jiann-Jyh;Lin, Shao-Kai. And the article was included in Journal of Organometallic Chemistry in 2009.Name: 2-Bromo-1-(pyren-1-yl)ethanone The following contents are mentioned in the article:

A new safe and convenient transformation has been developed. In the presence of cesium formate in dry MeOH solution, α-haloketones underwent direct conversion reaction to afford α-hydroxyketone in excellent yields. Furthermore, this methodol. can be extended and applied in 2-chloro-N-(1,3-diphenyl-1H-pyrazol-5-yl)acetamide, 2-chloro-N-(2,6-dimethylphenyl)acetamide, 1-(bromomethylsulfonyl)benzene, and N-(bromomethyl)phthalimide to give the corresponding products in moderate to excellent yields. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Name: 2-Bromo-1-(pyren-1-yl)ethanone).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) 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). 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.Name: 2-Bromo-1-(pyren-1-yl)ethanone

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Base-Promoted Domino Reaction of 5-Substituted 2-Nitrosophenols with Bromomethyl Aryl Ketones: A Transition-Metal-Free Approach to 2-Aroylbenzoxazoles was written by Aljaar, Nayyef;Malakar, Chandi C.;Conrad, Juergen;Beifuss, Uwe. And the article was included in Journal of Organic Chemistry in 2015.Computed Properties of C18H11BrO The following contents are mentioned in the article:

The reaction of 5-substituted 2-nitrosophenols with bromomethyl aryl ketones and related compounds employing K₂CO₃ as a base in refluxing THF and DMF at 80 °C, resp., delivers 2-aroylbenzoxazoles in a single step with yields up to 85%. The new method involves an intermol. nucleophilic substitution followed by intramol. 1,2-addition and elimination. It allows an efficient and practical access to 2-aroylbenzoxazoles under transition-metal-free conditions. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Computed Properties of C18H11BrO).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. 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.Computed Properties of C18H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Preparation of water dispersible carbon nanotubes using photoinduced hyperbranched copolymerization and noncovalent interactions was written by Un, Merve;Temel, Gokhan. And the article was included in European Polymer Journal in 2018.Category: bromides-buliding-blocks The following contents are mentioned in the article:

Amine containing methacrylic-based hyperbranched copolymers were prepared according to type II photoinitiation methodol. in the presence of a com. available photoinitiator. Several feed ratios of 2-(diethylamino)ethyl methacrylate and Me methacrylate monomers were used to obtain copolymers with varying branching densities. Resulting copolymers were easily modified using pyrene functional compound via Menschutkin quaternization reaction. Subsequently, pyrene possessing hyperbranched copolymers were attached onto multiwalled carbon nanotube surface by π-π stacking strategy. Gel permeation chromatog., thermal gravimetric anal. and UV spectroscopy were utilized to analyze structures and mol. weight values of modified copolymers and precursors. Dispersion experiments of resulting copolymers/CNT were also carried out in organic and aqueous media in different pH values. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Category: bromides-buliding-blocks).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) 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. 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.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Thiazoline-pyrene selective and sensitive fluorescence “turn-on” sensor for detection of Cu²⁺ was written by Wang, Jing;Liang, Jing;Liu, Xu;Xiao, Han;Dong, Fuping;Wang, Yilin;Shu, Xin;Huang, Furong;Liu, Hai-Bo. And the article was included in Spectrochimica Acta in 2019.SDS of cas: 80480-15-5 The following contents are mentioned in the article:

A thiazoline and pyrene containing sensor 1 (I) was synthesized via 1-pot reaction and used as a highly selective and sensitive fluorescence turn-on sensor for Cu²⁺ detection, via the fluorescence enhancement of pyrene monomer emission. The 2:1 stoichiometry of 1 and Cu²⁺ was calculated from Job’s plots based on fluorescent titrations, and the complexation of 1 with Cu²⁺ was also supported by mass spectra, FTIR spectra, ¹H NMR spectra and d. functional theory anal. The fluorescence intensity of 1 at 389 nm and 410 nm increased significantly upon the addition of Cu²⁺. Limit of detection and association constant value of 1-Cu²⁺ were calculated using standard deviations and linear fittings, resp. 1 Was active for Cu²⁺ detection in the wide pH range of 2.0-11.0. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5SDS of cas: 80480-15-5).

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. 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.SDS of cas: 80480-15-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Efficient violet non-doped organic light-emitting device based on a pyrene derivative with novel molecular structure was written by Wang, Zhi-Qiang;Liu, Chuan-Lin;Zheng, Cai-Jun;Wang, Wei-Zhou;Xu, Chen;Zhu, Mei;Ji, Bao-Ming;Li, Fan;Zhang, Xiao-Hong. And the article was included in Organic Electronics in 2015.Product Details of 1890136-54-5 The following contents are mentioned in the article:

A novel pyrene derivative 1,6-bis[2-(3,5-diphenylphenyl)phenyl]pyrene (DPPP) was successfully designed and synthesized. X-ray anal. shows the pyrene core in this compound is fully protected by the introduced 3,5-diphenylphenyl groups, resulting no π-π stacking between pyrene units, and the dihedral angle between pyrene ring and adjacent benzene ring is as large as 80.1°. This structure character leads to DPPP achieving a violet emission both in solution and as a thin solid film. Furthermore, DPPP exhibits high thermal properties due to its non-coplanar structure and large mol. size. The non-doped electroluminescence device employing DPPP as emitting layer shows a stable and efficient violet emission with a maximum external quantum efficiency of 2.2% and a CIE coordinate of (0.16, 0.04), which is remarkable in reported violet devices. This study involved multiple reactions and reactants, such as 2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5Product Details of 1890136-54-5).

2-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl (cas: 1890136-54-5) 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. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Product Details of 1890136-54-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Cross-Dehydrogenative Coupling (CDC) as Key-Transformations to Various D-π-A Organic Dyes: C-H/C-H Synthetic Study Directed toward Dye-Sensitized Solar Cells Applications was written by Ciou, Yan-Syun;Lin, Po-Han;Li, Wei-Ming;Lee, Kun-Mu;Liu, Ching-Yuan. And the article was included in Journal of Organic Chemistry in 2017.Formula: C18H11BrFN The following contents are mentioned in the article:

A variety of push-pull type organic dyes are facilely synthesized through the most atom-economical C-H/C-H dehydrogenative coupling reactions. After comprehensive synthetic optimizations, a broad substrate scope is achieved and functional groups, such as ester, ketone, nitrile, nitro, and triazene are well tolerated. The sensitive aldehyde group required for the conversion into anchoring groups for DSSCs applications is also compatible under present oxidant-containing reaction conditions. Based on this optimum C-H/C-H coupling approach, three new organic sensitizers are readily prepared and submitted to solar cell device fabrications, giving the power conversion efficiency (PCE) up to 4.85%. This work constitutes the first example that connects high atom-efficiency C-H/C-H green catalysis with dye-sensitized solar cell applications. This study involved multiple reactions and reactants, such as 3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0Formula: C18H11BrFN).

3-Bromo-9-(4-fluorophenyl)-9H-carbazole (cas: 922721-30-0) 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. 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.Formula: C18H11BrFN

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary