Description

1,3,2-Dioxaborolane, 4,4,5,5-Tetramethyl-2-(4-Pentenyl)- is a high-purity, pentenyl-substituted cyclic boronic ester, a versatile intermediate in modern synthetic chemistry. This compound is valued for its role as a key building block in cross-coupling reactions, enabling the efficient construction of complex molecular architectures. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and advanced materials sectors for applications in Suzuki-Miyaura coupling and other catalytic transformations.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) via Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides requiring specific boronic ester functionalities.
• Advanced Material Development: Serves as a monomer or precursor in the creation of organic electronic materials, such as polymers for OLEDs and organic photovoltaics.
• Chemical Research & Development: A versatile reagent in academic and industrial labs for constructing complex organic molecules and exploring new catalytic methodologies.
• Ligand and Catalyst Preparation: Utilized in the synthesis of specialized ligands and organometallic catalysts.
• Polymer Modification: Enables the functionalization of polymer chains through its reactive boronate group for tailored material properties.

Basic Information

Product Name	1,3,2-Dioxaborolane, 4,4,5,5-Tetramethyl-2-(4-Pentenyl)-
CAS No.	157735-10-9
Molecular Formula	C11H21BO2
Molecular Weight	196.10 g/mol
Synonyms	4-Pentenylboronic Acid Pinacol Ester; 2-(4-Pentenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4-Penten-1-ylboronic Acid Pinacol Ester; 4-PentenylBPin; 4-Penten-1-yl-Bpin; Pinacol 4-Pentenylboronate; (4-Pentenyl)Pinacolborane
EINECS	Contact for details

Quality Control

Our 1,3,2-Dioxaborolane, 4,4,5,5-Tetramethyl-2-(4-Pentenyl)- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for prolonged storage or after opening to maintain stability and purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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