Description

1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene is a high-purity, cis-configured bis-boronic ester derivative, a critical building block in advanced organic synthesis. This compound is valued for its role in facilitating efficient carbon-carbon bond formation, particularly in challenging cross-coupling reactions. It is primarily sought after by research institutions and manufacturers in the pharmaceutical and advanced materials sectors for developing novel active pharmaceutical ingredients (APIs) and functional organic molecules.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key reagent for constructing complex biaryl and conjugated systems in pharmaceutical intermediates.
• Pharmaceutical Research & Development: Used as a versatile synthon in the discovery and synthesis of new drug candidates and APIs.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for creating novel organic semiconductors and emissive layer materials.
• Polymer Chemistry: Employed in the synthesis of specialty polymers and functional materials with tailored properties.
• Agrochemical Synthesis: Utilized in the development of new, more effective active ingredients for crop protection.
• Material Science Research: Acts as a building block for metal-organic frameworks (MOFs) and other advanced porous materials.

Basic Information

Product Name	1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene
CAS No.	307531-75-5
Molecular Formula	C₁₉H₃₆B₂O₄
Molecular Weight	350.11 g/mol
Synonyms	1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-pentene (cis); cis-1-Pentene-1,2-diylbis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane); 1-cis-1,2-Bis(pinacolboronato)pentene; cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pent-1-ene; Pinacol (1Z)-1-pentene-1,2-diylbis(boronate); (Z)-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-pentene
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch of 1-cis-1,2-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pentene is analyzed using advanced techniques like NMR, HPLC, and GC to verify identity, purity, and isomeric composition. Certificates of Analysis (COA) with detailed specifications are available upon request, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C in a cool, dry place. This compound is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air, moisture, or elevated temperatures should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white solid or crystalline powder
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Area %)
Isomeric Purity (cis-isomer)	≥ 98%
Water Content (KF)	≤ 0.5%

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