Description

Bicyclo[2.2.1]Hept-2-Ene-1-Carbonyl Chloride (9Ci) is a highly reactive and versatile acid chloride derivative of norbornene, serving as a critical building block in advanced organic synthesis. Its value lies in its strained bicyclic structure and functional group, enabling the efficient introduction of the norbornene moiety into complex molecules under mild conditions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to create novel active ingredients, ligands, and functional materials with tailored properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a rigid, lipophilic norbornene scaffold.
• Agrochemical Synthesis: Used to construct novel herbicide and pesticide molecules, leveraging its structural rigidity for enhanced biological activity and environmental stability.
• Polymer & Material Science: Serves as a functional monomer or cross-linking agent in the production of specialty polymers, resins, and advanced materials like ROMP (Ring-Opening Metathesis Polymerization) substrates.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for Diels-Alder reactions, amide couplings, and other transformations to create complex, polycyclic organic compounds.
• Ligand & Catalyst Development: Acts as a starting material for synthesizing chiral ligands and organometallic catalysts used in asymmetric synthesis.
• Fine Chemical Production: Intermediate in the manufacture of dyes, flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	Bicyclo[2.2.1]Hept-2-Ene-1-Carbonyl Chloride (9Ci)
CAS No.	15023-40-2
Molecular Formula	C8H9ClO
Molecular Weight	156.61 g/mol
Synonyms	2-Norbornene-1-carbonyl chloride; Bicyclo[2.2.1]hept-2-ene-1-carbonyl chloride; 5-Norbornene-2-carbonyl chloride; 1-Chlorocarbonyl-2-norbornene; Norborn-2-ene-1-carbonyl chloride; 2,3-Didehydrobicyclo[2.2.1]heptane-1-carbonyl chloride; 1-Carboxy-2-norbornene acid chloride
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for purity and consistency. Each batch is characterized using advanced analytical techniques, including GC, HPLC, NMR, and IR spectroscopy, to verify identity and quantify impurities. Certificates of Analysis (COA) detailing all relevant specifications are available upon request. We adhere to a cGMP-compliant quality management system to support our customers in regulated markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong bases, oxidizers, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acid Chloride Content	≥ 95.0%
Related Substances (GC)	≤ 3.0% total

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