Description

1,3,2-Dioxaborolane, 2,2'-(5-Methoxy-1,3-Phenylene)Bis[4,4,5,5-Tetramethyl- is a high-purity, functionalized aryl bis(boronic ester) compound. This chemical is a critical advanced intermediate for constructing complex molecular architectures in pharmaceutical and materials science research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and organic electronics sectors for Suzuki-Miyaura cross-coupling reactions.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs) and drug candidates via palladium-catalyzed cross-coupling.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides requiring specific aryl-boron linkages.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for electron-transport materials and emissive layer components in display technology.
• Polymer & Materials Science: Enables the creation of conjugated polymers and organic semiconductors for flexible electronics and sensors.
• Ligand & Catalyst Development: Utilized in the synthesis of novel bidentate ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Chemical Biology & Probe Development: Acts as a versatile handle for bioconjugation and the synthesis of molecular probes for imaging and diagnostics.

Basic Information

Product Name	1,3,2-Dioxaborolane, 2,2'-(5-Methoxy-1,3-Phenylene)Bis[4,4,5,5-Tetramethyl-
CAS No.	1417036-51-1
Molecular Formula	C21H34B2O5
Molecular Weight	396.11 g/mol
Synonyms	5-Methoxy-1,3-phenylenebis(boronic acid) bis(pinacol ester); 1,3-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-methoxybenzene; 5-Methoxy-m-phenylenebis(boronic acid pinacol ester); 2,2'-(5-Methoxy-1,3-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane); 5-Methoxybenzene-1,3-diboronic acid bis(pinacol) ester; 3,5-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anisole; m-Anisole-3,5-diboronic acid pinacol ester
EINECS	Contact for details

Quality Control

Our high-purity boronic ester products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. We provide comprehensive analytical data including HPLC purity, NMR confirmation, and elemental analysis. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (argon or nitrogen) to prevent moisture absorption and decomposition. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.