3,5-Dimethyl-4-methoxyphenylboronic acid
3,5-Dimethyl-4-methoxyphenylboronic acid (CAS: 301699-39-8) is a substituted aryl boronic acid with the molecular formula (CH3)2C6H2OCH3B(OH)2 and a molecular weight of 180.01 g/mol. This organometallic compound serves as a versatile building block in organic synthesis, primarily utilised in cross-coupling reactions for the preparation of complex molecules. Its specific structure makes it valuable in the synthesis of biologically and pharmacologically active compounds.
- IUPAC
- 4-Methoxy-3,5-dimethylbenzeneboronic acid,4-Methoxy-3,5-dimethylphenylboronic acid
- Synonyms
- (CH3)2C6H2OCH3B(OH)24-Methoxy-3,5-dimethylbenzeneboronic acid4-Methoxy-3,5-dimethylphenylboronic acid

Biologically Active Molecule Synthesis
3,5-Dimethyl-4-methoxyphenylboronic acid is a key reactant in the preparation of molecules with significant biological and pharmacological activities, contributing to advancements in medicinal chemistry.
Suzuki and Stille Cross-Coupling Reactions
This boronic acid derivative is effectively employed as a coupling partner in Suzuki and Stille cross-coupling reactions, enabling the formation of carbon-carbon bonds critical for complex organic synthesis.
Mizoroki-Heck Arylation
The compound participates in Mizoroki-Heck arylation reactions, facilitating the introduction of aryl groups into organic structures.
Baeyer-Villiger Oxidation
It acts as a reactant in Baeyer-Villiger oxidation processes, a valuable transformation for the synthesis of esters and lactones.
Asymmetric Conjugate Addition
This boronic acid is utilised in Rhodium-catalyzed asymmetric conjugate addition reactions, offering stereoselective synthetic pathways.
| Molecular weight | 180.01 |
|---|---|
| Linear formula | (CH3)2C6H2OCH3B(OH)2 |
| Assay | ≥95% |
| Application | Reactant for:• Preparation of biologically and pharmacologically active molecules1,2• Suzuki and Stille cross-coupling reaction3• Mizoroki-Heck arylation4• Baeyer-Villiger oxidation5• Rhodium-catalyzed asymmetric conjugate addition reactions6 |
| Melting point | 235-242 °C(lit.) |
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.
What is 3,5-Dimethyl-4-methoxyphenylboronic acid used for?
+
3,5-Dimethyl-4-methoxyphenylboronic acid (CAS: 301699-39-8) is used as a reactant in the preparation of biologically and pharmacologically active molecules, and in various cross-coupling reactions such as Suzuki, Stille, and Mizoroki-Heck arylation, as well as Baeyer-Villiger oxidation and Rhodium-catalyzed asymmetric conjugate addition reactions.
What is the CAS number and chemical formula for 3,5-Dimethyl-4-methoxyphenylboronic acid?
+
The CAS number is 301699-39-8 and the linear formula is (CH3)2C6H2OCH3B(OH)2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,5-Dimethyl-4-methoxyphenylboronic acid with an assay of ≥95%. We do not represent this product as USP, BP, EP or other pharmacopoeia grades.
What are the safety considerations for handling 3,5-Dimethyl-4-methoxyphenylboronic acid?
+
3,5-Dimethyl-4-methoxyphenylboronic acid has a WGK (German water hazard class) of 3, indicating it is hazardous to aquatic life. Handle with appropriate personal protective equipment in a well-ventilated area.
Is 3,5-Dimethyl-4-methoxyphenylboronic acid available for export?
+
Yes, Tech Serve Solutions specialises in global supply and export of fine chemicals, including 3,5-Dimethyl-4-methoxyphenylboronic acid.
How can I request a quote or sample?
+
To request a quote or sample of 3,5-Dimethyl-4-methoxyphenylboronic acid, please contact our sales team through the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis