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Introduction

3-Biphenylboronic acid, also known as 3-phenylbenzeneboronic acid, is a valuable chemical compound with the CAS number 5122-95-2. It finds extensive use in organic synthesis and related fields due to its unique structure and properties. Below is a detailed overview of this compound, presented in a table format for clarity.

Aspect	Details
CAS Number	5122-95-2
Molecular Formula	C12H11BO2
Molecular Weight	198.03 g/mol
Boiling Point	411.0±38.0°C at 760 mmHg
Density	1.18 g/cm³
Melting Point	193-198°C
Appearance	White solid
Solubility	Insoluble in water, soluble in DMSO and methanol
Storage Conditions	0-6°C, protected from light, in a well-ventilated, dry place, sealed
Acidity Coefficient (pKa)	8.30±0.10
Applications	Organic synthesis, pharmaceuticals, agrochemicals, liquid crystals
Safety Information	Hazard statements: R36/37/38. Safety phrases: S26. S37/S39
Suppliers	Multiple suppliers available, offering various package sizes

Chemical Properties

3-Biphenylboronic acid has a molecular formula of C12H11BO2 and a molecular weight of 198.03 g/mol. Its boiling point is 411.0±38.0°C at 760 mmHg, and its density is 1.18 g/cm³. The compound has a melting point of 193-198°C and appears as a white solid. It is insoluble in water but soluble in DMSO and methanol. The compound should be stored at 0-6°C, protected from light, in a well-ventilated, dry place, and sealed. Its acidity coefficient (pKa) is 8.30±0.10.

Applications

This compound is widely used in organic synthesis as a versatile reagent for introducing biphenyl and boronic acid moieties into different molecules. It is particularly useful in metal-catalyzed cross-coupling reactions, such as the Suzuki-Miyaura reaction. Additionally, 3-biphenylboronic acid is used in the preparation of pharmaceuticals, agrochemicals, and liquid crystals. Its ability to form boronate esters also makes it an important intermediate in various organic reactions.

Safety Information

When handling 3-biphenylboronic acid, it is important to follow proper safety procedures. The compound is classified as an irritant to the eyes, respiratory system, and skin (R36/37/38). Appropriate precautions, such as wearing protective clothing, gloves, and eyewear, should be taken. In case of contact with eyes, immediate rinsing with plenty of water and seeking medical advice are recommended (S26).

Suppliers

Several suppliers offer 3-biphenylboronic acid in various package sizes, including 1g, 5g, 10g, 25g, 50g, 100g, 500g, 1kg, and 5kg. This allows researchers to purchase the quantity that best suits their needs.

Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.

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