Description

cis-1,2-Diborono-1,2-Diphenylethylene, Dipinacol Ester is a high-value organoboron reagent featuring a protected diboronic ester functional group. This compound is critical for enabling advanced cross-coupling reactions, particularly in the synthesis of complex organic molecules and functional materials. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: Serves as a key diboron source for the efficient synthesis of biaryl and conjugated systems.
• Pharmaceutical Intermediate Synthesis: Used in the construction of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Employed in the development of novel herbicides, fungicides, and insecticides.
• Organic Light-Emitting Diode (OLED) Materials: A precursor for creating advanced organic semiconductors and emissive layers.
• Polymer Chemistry: Facilitates the synthesis of specialty polymers with tailored electronic or mechanical properties.
• Academic & Industrial R&D: A versatile building block for methodological development and discovery chemistry.

Basic Information

Product Name	cis-1,2-Diborono-1,2-Diphenylethylene, Dipinacol Ester
CAS No.	221006-76-4
Molecular Formula	C24H30B2O4
Molecular Weight	404.11 g/mol
Synonyms	(Z)-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-diphenylethene; (Z)-1,2-Diphenyl-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethene; cis-1,2-Bis(pinacolatoboryl)-1,2-diphenylethylene; (Z)-1,2-Bis(pinacolatoboryl)-1,2-diphenylethylene; cis-Stilbene Bis(boronic Acid Pinacol Ester); (Z)-Stilbene-1,2-bis(boronic Acid Pinacol Ester); cis-1,2-Diphenyl-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethylene
EINECS	Contact for details

Quality Control

Our cis-1,2-Diborono-1,2-Diphenylethylene, Dipinacol Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards, and specifications can be tailored to meet specific project requirements.

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). This material is light-sensitive and should be handled under an inert atmosphere when appropriate to maintain stability.

Specification

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

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