Description

2-Cyclopenten-1-One, 3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)- CAS NO 1370008-65-3 is a high-value organoboron building block, specifically a boronic ester derivative of a functionalized cyclopentenone. This compound is critical for modern synthetic chemistry, enabling the precise construction of complex molecular architectures through cross-coupling reactions. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for the synthesis of novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key precursor in Suzuki-Miyaura cross-coupling reactions for constructing carbon-carbon bonds in drug discovery and development of active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides that require complex cyclic ketone structures.
• Material Science Research: Serves as a monomer or functionalization agent in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Chemical Biology Probes: Employed in the synthesis of tagged molecules and probes for studying biological pathways and protein interactions.
• Catalyst Ligand Synthesis: Acts as a starting material for creating sophisticated chiral or bidentate ligands used in asymmetric catalysis.
• Academic & Industrial R&D: A versatile reagent for methodological development in organic synthesis and scale-up process optimization.

Basic Information

Product Name	2-Cyclopenten-1-One, 3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-
CAS No.	1370008-65-3
Molecular Formula	C11H19BO3
Molecular Weight	210.08 g/mol
Synonyms	3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-cyclopenten-1-one; 3-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-cyclopenten-1-one; 2-Cyclopenten-1-one, 3-(tetramethyl-1,3,2-dioxaborolan-2-yl)-; 3-(Pinacolatoboryl)-2-cyclopenten-1-one; 3-Boronopinacolate-2-cyclopenten-1-one; Cyclopentenone pinacol boronic ester; 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclopent-2-en-1-one
EINECS	Contact for details

Quality Control

Our 2-Cyclopenten-1-One, 3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC analysis, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) with detailed specifications are provided for every shipment. We support cGMP compliance for pharmaceutical applications and can tailor purity grades 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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