4,4′-Biphenyldiboronic acid bis(neopentyl) ester

CAS 5487-93-4C22H28B2O4Chemical Synthesis

4,4′-Biphenyldiboronic acid bis(neopentyl) ester (CAS: 5487-93-4) is an organoboron compound with a molecular weight of 378.08 g/mol. It serves as a valuable building block in organic synthesis, particularly in cross-coupling reactions. This compound finds utility in the development of advanced materials, including those for organic electronics, due to its biphenyl core and reactive boronate ester functionalities.

IUPAC: 4,4′-Bis-(5,5-dimethyl-[1,3,2]dioxaborinane-2-yl)-biphenyl
Synonyms: 4,4′-Bis-(5,5-dimethyl-[1,3,2]dioxaborinane-2-yl)-biphenyl

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4,4′-Biphenyldiboronic acid bis(neopentyl) ester (C22H28B2O4) — chemical structure, CAS 5487-93-4; Chemistry, fine chemical supplied by Tech Serve Solutions

Aryl Boronate EstersBoronate EstersChemical SynthesisMaterials ScienceOrganometallic ReagentsSynthetic Intermediates

01 /Applications

Organic Synthesis

Utilised as a key intermediate in Suzuki-Miyaura coupling reactions for the formation of carbon-carbon bonds. It enables the construction of complex organic molecules and conjugated systems.

Materials Science

Applied in the synthesis of novel polymers and organic semiconductors. Its structure is conducive to creating materials with specific electronic and optical properties for advanced applications.

Organic Electronics

A precursor for organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs), and organic photovoltaics (OPVs). It contributes to the development of next-generation electronic devices.

02 /Properties

Molecular weight	378.08
Empirical formula	C22H28B2O4
Assay	97%
Melting point	241-245 °C

03 /Safety & handling

GHS hazard pictogram: Environmental hazard (GHS09) — Environmental hazard

Warning

Hazard statements

H400Very toxic to aquatic life

Precautionary statements

P273Avoid release to the environment

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Transport (UN / ADR)	UN 3077 9 / PGIII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	N
Risk statements (R)	50/53
Safety statements (S)	60-61

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

5487-93-4

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 4,4′-Biphenyldiboronic acid bis(neopentyl) ester used for?

This compound is primarily used as a building block in organic synthesis, especially for cross-coupling reactions, and in materials science for creating organic electronic materials.

What is the CAS number and formula for 4,4′-Biphenyldiboronic acid bis(neopentyl) ester?

The CAS number is 5487-93-4, and its empirical formula (Hill notation) is C22H28B2O4.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 4,4′-Biphenyldiboronic acid bis(neopentyl) ester with an assay of 97%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP.

How should 4,4′-Biphenyldiboronic acid bis(neopentyl) ester be handled?

This compound is hazardous to the aquatic environment. Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, and avoid release into the environment. It is classified with GHS09 symbol, warning signal word, and H400 hazard statement.