Description

Exo-4-(5'-Norbornen-2'-Yl)-3-Buten-2-One is a specialized, high-purity organic compound featuring a reactive norbornene moiety conjugated to a butenone group. This unique structure makes it a valuable building block and intermediate in advanced organic synthesis, particularly for creating complex molecular architectures. It is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise, high-quality intermediates for developing new active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), leveraging its reactive olefin and ketone functionalities.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, where the norbornene system can impart specific biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the production of specialty polymers, resins, and functional materials via ring-opening metathesis polymerization (ROMP) or other addition reactions.
• Organic Synthesis & Catalysis: Employed as a versatile dienophile in Diels-Alder reactions and as a ligand precursor in organometallic chemistry and catalyst design.
• Fine Chemical Production: Utilized in the multistep synthesis of complex flavors, fragrances, and other high-value fine chemicals.
• Academic & Industrial R&D: A critical reagent for methodological development and exploring new chemical spaces in research laboratories.

Basic Information

Product Name	Exo-4-(5'-Norbornen-2'-Yl)-3-Buten-2-One
CAS No.	94020-84-5
Molecular Formula	C11H12O
Molecular Weight	160.21 g/mol
Synonyms	4-(5-Norbornen-2-yl)-3-buten-2-one (exo); 3-Buten-2-one, 4-(5-norbornen-2-yl)-, exo-; exo-4-(Norborn-5-ene-2-yl)but-3-en-2-one; 2-Norbornene-5-acetyl ethylene; Norbornenyl butenone; Bicyclo[2.2.1]hept-5-ene-2-acetyl ethylene (exo)
EINECS	Contact for details

Quality Control

Our Exo-4-(5'-Norbornen-2'-Yl)-3-Buten-2-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high chemical purity and consistent isomeric composition. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, ensuring traceability and compliance with your internal quality standards and research 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). Due to its sensitivity to light and propensity for oxidation, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0% (Area %)
Isomeric Purity (exo)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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