594823-67-3

Usage

Uses

Used in Pharmaceutical Synthesis:
3-Bromo-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-yl)benzene is used as a key intermediate in the synthesis of various pharmaceuticals for its ability to facilitate the formation of complex molecular structures through carbon-carbon bond formation.
Used in Agrochemical Development:
In the agrochemical industry, 3-Bromo-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-yl)benzene is utilized as a precursor in the development of new compounds designed to protect crops and enhance agricultural productivity.
Used in Advanced Material Production:
3-Bromo-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-yl)benzene is employed as a component in the production of advanced materials, where its structural features contribute to the creation of materials with specific properties for high-tech applications.
Used in Suzuki-Miyaura Cross-Coupling Reactions:
A significant application of 3-Bromo-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-yl)benzene lies in its role as a reagent in Suzuki-Miyaura cross-coupling reactions. It is used to forge carbon-carbon bonds, which are essential in constructing the molecular frameworks of a wide array of organic compounds.
Organic Chemistry Research:
3-Bromo-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-yl)benzene is also used as a subject of study in organic chemistry research, where its properties and reactions are explored to further understand and expand the field of organic synthesis.

Upstream product

• 591-19-5 m-Bromoaniline 
• 73183-34-3 bis(pinacol)diborane 
• 108-86-1 bromobenzene 
• 76-09-5 2,3-dimethyl-2,3-butane diol 
• 1359224-18-2 Me₂NTol*BCl₃ 
• 1350843-22-9 lutidine 
• 2890-88-2 (C₂H₅)3N*BCl₃ 
• 591-18-4 1-Bromo-3-iodobenzene 
• 33733-73-2 3-bromo-1-(methylthio)benzene 
• 89598-96-9 (3-bromophenyl)boronic acid 
• 2905-24-0 3-Bromobenzenesulfonyl chloride 
• 89520-70-7 sodium 3-bromobenzenesulfinate 
• 25015-63-8 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane 
• 585-76-2 m-bromobenzoic acid 

Downstream Products

• 857934-89-5 phenyl-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanol 
• 1256781-64-2 2-(2,5-dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 4373-60-8 2-(3-bromophenyl)pyridine 
• 668438-40-2 4-bromo-(2-(3-bromophenyl))pyridine 

Relevant academic research and scientific papers

Synthesis of arylboronates via the Pd-catalyzed desulfitative coupling reaction of sodium arylsulfinates with bis(pinacolato)diboron

The desulfitative borylation reaction of sodium arylsulfinates with bis(pinacolato)diboron or bis(neopentylglycolato)diboron under palladium catalysis has been developed, allowing selective C-B bond formation to give arylboronates with a range of functional groups in moderate to good yields under mild reaction conditions. A gram-scale preparation as well as the cascade Suzuki-Miyaura cross-coupling of arylboronates demonstrated the potential practical utility in organic synthesis.

Light- and Manganese-Initiated Borylation of Aryl Diazonium Salts: Mechanistic Insight on the Ultrafast Time-Scale Revealed by Time-Resolved Spectroscopic Analysis

Manganese-mediated borylation of aryl/heteroaryl diazonium salts emerges as a general and versatile synthetic methodology for the synthesis of the corresponding boronate esters. The reaction proved an ideal testing ground for delineating the Mn species responsible for the photochemical reaction processes, that is, involving either Mn radical or Mn cationic species, which is dependent on the presence of a suitably strong oxidant. Our findings are important for a plethora of processes employing Mn-containing carbonyl species as initiators and/or catalysts, which have considerable potential in synthetic applications.

Direct C?H Borylation of Arenes Catalyzed by Saturated Hydride-Boryl-Iridium-POP Complexes: Kinetic Analysis of the Elemental Steps

The saturated trihydride IrH3{κ3-P,O,P-[xant(PiPr2)2]} (1; xant(PiPr2)2=9,9-dimethyl-4,5-bis(diisopropylphosphino)xanthene) activates the B?H bond of two molecules of pinacolborane (HBpin) to give H2, the hydride-boryl derivatives IrH2(Bpin){κ3-P,O,P-[xant(PiPr2)2]} (2) and IrH(Bpin)2{κ3-P,O,P-[xant(PiPr2)2]} (3) in a sequential manner. Complex 3 activates a C?H bond of two molecules of benzene to form PhBpin and regenerates 2 and 1, also in a sequential manner. Thus, complexes 1, 2, and 3 define two cycles for the catalytic direct C?H borylation of arenes with HBpin, which have dihydride 2 as a common intermediate. C?H bond activation of the arenes is the rate-determining step of both cycles, as the C?H oxidative addition to 3 is faster than to 2. The results from a kinetic study of the reactions of 1 and 2 with HBpin support a cooperative function of the hydride ligands in the B?H bond activation. The addition of the boron atom of the borane to a hydride facilitates the coordination of the B?H bond through the formation of κ1- and κ2-dihydrideborate intermediates.

Borylation of Diazonium Salts by Highly Emissive and Crystalline Carbon Dots in Water

Efficient borylation reaction of diazonium salts in water is realized for the first time by using easily prepared, highly emissive and crystalline carbon dots. Electron-donating and electron-withdrawing groups on diazonium salts were well tolerated with moderate to good conversion efficiency. Compared with widely used metal complexes, organic dyes and quantum dots, the approach presented herein uses carbon dots, which are nontoxic and possess good biological and medicinal compatibility and high reactivity. Therefore, this approach presents a new prospective use for carbon dots in green chemistry.

Chemoselective Rhodium-Catalyzed Borylation of Bromoiodoarenes under Mild Conditions

A chemoselective rhodium-catalyzed borylation has been developed for the preparation of aryl boronate esters. The reaction proceeds under mild conditions with excellent selectivity for C-I bonds in bromoiodoarenes and exhibits broad functional group tolerance. This procedure can act as a complementary approach toward bifunctional arenes along with other metal-catalyzed borylations. Additionally, the reaction's utility in the preparation of monomers for metal-catalyzed cross-coupling polymerization is demonstrated.

Redox-Neutral Borylation of Aryl Sulfonium Salts via C-S Activation Enabled by Light

Reported here is a novel photoinduced strategy for the borylation of aryl sulfonium salts using bis(pinacolato)diboron as the boron source. This method exploits redox-neutral aryl sulfoniums to gain access to aryl radicals via C-S bond activation upon photoexcitation under transition-metal-free conditions. Therefore, it grants access to diverse arylboronate esters with good performance from easily available aryl sulfoniums accompanied by mild conditions, operational simplicity, and easy scalability.

Photocatalyzed borylation using water-soluble quantum dots

The synthesis of arylboronates by Sandmeyer-type reactions in the presence of water still remains a significant challenge. Herein, we report the use of water-soluble MPA-capped quantum dot (QD) photocatalysts for the borylation of diazonium salts in the presence of water. A biphasic system under mild acidic conditions remains critical to prevent decomposition and competitive disulphide bond formation. The present protocol offers a broader scope of substrates and borylating agents. Additionally, this catalytic system offers a significantly high turnover number (TON). The present methodology can effectively distinguish subtle reactivity differences between boronic acids and boronates. Mechanistic investigation suggests an excited-state electron transfer pathway.

Alcohol-initiated dediazoniation of aryldiazonium ions to aryl radicals: A simple and efficient route to arylboronates

A simple and efficient access to arylboronates was achieved with methanol-initiated borylation of aryldiazonium salts. Reduction of aryldiazonium ions by single electron transfer from methanol affords aryl radical species, which undergo a subsequent C?B bond formation with bis(pinacolato)diboron. This highly practical borylation process, which can be carried out on the gram-scale, enjoys operational simplicity as well as mild and catalyst-free conditions.

Radical Metal-Free Borylation of Aryl Iodides

A simple metal-free borylation of aryl iodides mediated by a fluoride sp 2 -sp 3 diboron adduct is described. The reaction conditions are compatible with various functional groups. Electronic effects of substituents do not affect the borylation while steric hindrance does. The reaction proceeds via a radical mechanism in which pyridine serves to stabilize the boryl radicals, generated in situ.

Isonicotinate Ester Catalyzed Decarboxylative Borylation of (Hetero)Aryl and Alkenyl Carboxylic Acids through N-Hydroxyphthalimide Esters

Decarboxylative borylation of aryl and alkenyl carboxylic acids with bis(pinacolato)diboron was achieved through N-hydroxyphthalimide esters using tert-butyl isonicotinate as a catalyst under base-free conditions. A variety of aryl carboxylic acids possessing different functional groups and electronic properties can be smoothly converted to aryl boronate esters, including those that are difficult to decarboxylate under transition-metal catalysis, offering a new method enabling use of carboxylic acid as building blocks in organic synthesis. Mechanistic analysis suggests the reaction proceeds through coupling of a transient aryl radical generated by radical decarboxylation with a pyridine-stabilized persistent boryl radical. Activation of redox active esters may proceed via an intramolecular single-electron-transfer (SET) process through a pyridine-diboron-phthalimide adduct and accounts for the base-free reaction conditions.