Description

7-Oxabicyclo[2.2.1]hept-5-ene-2-carbonyl chloride (9Ci) is a highly reactive and versatile bicyclic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its unique oxanorbornene structure makes it an invaluable precursor for constructing complex molecular architectures with precise stereochemistry. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to introduce functionalized bicyclic frameworks into target molecules.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in creating constrained, bridged ring systems that mimic bioactive conformations.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, where its rigid structure can enhance biological activity and environmental stability.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for synthesizing specialty polymers with unique thermal and mechanical properties, such as epoxy resins and high-performance coatings.
• Ligand & Catalyst Development: Employed in the synthesis of chiral ligands and organocatalysts for asymmetric synthesis, leveraging its potential for further functionalization.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry, including Diels-Alder reactions and ring-opening metathesis polymerizations (ROMP).
• Fine Chemical Production: Intermediate in the multi-step synthesis of complex flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	7-Oxabicyclo[2.2.1]hept-5-ene-2-carbonyl chloride (9Ci)
CAS No.	84752-05-6
Molecular Formula	C7H7ClO2
Molecular Weight	158.58 g/mol
Synonyms	5-Norbornene-2-carbonyl chloride, 1,4-epoxy-; 1,4-Epoxy-5-norbornene-2-carbonyl chloride; 7-Oxabicyclo[2.2.1]hept-5-ene-2-carbonyl chloride; 2-Carbonylchloride-7-oxabicyclo[2.2.1]hept-5-ene; Oxabicycloheptenecarbonyl chloride; Bicyclo[2.2.1]hept-5-ene-2-carbonyl chloride, 1,4-epoxy-; 5-Norbornene-2-carbonyl chloride, 1,4-epoxy- (9CI)
EINECS	Contact for details

Quality Control

Our 7-Oxabicyclo[2.2.1]hept-5-ene-2-carbonyl chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 95.0% (Standard Grade)
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Report and comply with agreed limits

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