Description

cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)stilbene is a high-purity, functionalized stilbene derivative featuring two pinacol boronate ester groups, making it a versatile and valuable intermediate in advanced organic synthesis. Its primary value lies in its role as a key building block for Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex, conjugated organic frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries developing novel electronic materials, OLEDs, and bioactive molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical building block for synthesizing novel drug candidates, especially those requiring conjugated aromatic systems.
• Organic Electronic Materials: Used in the synthesis of organic semiconductors, hole-transport materials, and emitters for OLED (Organic Light-Emitting Diode) devices.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for creating advanced polymers with specific optical or electronic properties.
• Agrochemical Research: Employed in the development of new active ingredients with tailored molecular structures.
• Liquid Crystal and Dye Synthesis: A key precursor for creating dyes, pigments, and liquid crystal compounds with extended conjugation.
• Academic & R&D: A valuable reagent for methodological studies in cross-coupling chemistry and materials science research.

Basic Information

Product Name	cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)stilbene
CAS No.	173603-23-1
Molecular Formula	C28H38B2O4
Molecular Weight	460.22 g/mol
Synonyms	(Z)-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethene-1,2-diyl)dibenzene; cis-Stilbene-1,2-diylbis(pinacolboronate); cis-1,2-Di(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)stilbene; (Z)-1,2-Diphenyl-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethene; cis-1,2-Bis(pinacolboronato)stilbene; cis-Stilbene-1,2-diboronic acid bis(pinacol ester); (Z)-Stilbene-1,2-diylbis(boronic acid pinacol ester)
EINECS	Contact for details

Quality Control

Our cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)stilbene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) and handle it in a dry environment to prevent degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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