Description

2-(1-Cyclopentylvinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS NO 177949-94-9 is a high-purity, versatile boronic ester building block essential for modern synthetic chemistry. Its core value lies in enabling efficient, selective cross-coupling reactions, which are fundamental for constructing complex molecular architectures. This compound is a critical intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key reagent in Suzuki-Miyaura cross-couplings for synthesizing novel drug candidates, particularly in creating complex carbon-carbon bonds for small molecule APIs.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its structural motif can be incorporated to modulate biological activity.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for constructing advanced organic semiconductors and emissive layer materials in display and lighting technologies.
• Ligand and Catalyst Development: Employed in the synthesis of novel bidentate or tridentate ligands for transition metal catalysis.
• Polymer and Material Science: Acts as a functional monomer or cross-linking agent in the production of specialty polymers with tailored properties.
• Chemical Biology Probes: Utilized in the creation of bioconjugates and molecular probes for target identification and validation in drug discovery.

Basic Information

Product Name	2-(1-Cyclopentylvinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
CAS No.	177949-94-9
Molecular Formula	C₁₃H₂₃BO₂
Molecular Weight	222.13 g/mol
Synonyms	2-(1-Cyclopenten-1-yl)vinyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; (1-Cyclopentylvinyl)boronic acid pinacol ester; 2-(1-Cyclopent-1-en-1-ylvinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; Cyclopentylvinylboronic acid pinacol ester; Pinacol (1-cyclopentylvinyl)boronate; 1-Cyclopentylvinylboronic Acid Pinacol Ester; 177949-94-9
EINECS	Contact for details

Quality Control

Our 2-(1-Cyclopentylvinyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with the standards required for research and cGMP manufacturing environments.

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 compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥95.0%
Purity (GC)	≥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.