Description

Bicyclo[2.2.2]Oct-2-Ene, 5-Ethynyl- (9Ci) is a specialized strained bicyclic alkene derivative featuring an ethynyl substituent, offering a unique three-dimensional scaffold and reactive handles for advanced synthesis. This compound matters as a high-value chemical building block for constructing complex molecular architectures in pharmaceutical and materials research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly for creating complex, three-dimensional core structures.
• Agrochemical Research: Used in developing new active ingredients with unique steric and electronic properties for crop protection.
• Ligand & Catalyst Development: Acts as a backbone for creating novel ligands and organometallic catalysts in asymmetric synthesis.
• Polymer & Materials Science: Employed as a monomer or cross-linking agent for synthesizing specialty polymers with tailored thermal and mechanical properties.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic synthesis, including Diels-Alder and click chemistry reactions.
• Fine Chemical Synthesis: Utilized in the multi-step production of high-value, complex fine chemicals and flavors/fragrances.

Basic Information

Item	Details
Product Name	Bicyclo[2.2.2]Oct-2-Ene, 5-Ethynyl- (9Ci)
CAS No.	78512-35-3
Molecular Formula	C10H10
Molecular Weight	130.19 g/mol
Synonyms	5-Ethynylbicyclo[2.2.2]oct-2-ene; 5-Ethynyl-2,5-norbornadiene; 5-Ethynylbicyclo[2.2.2]oct-2-ene; 2,5-Norbornadiene, 5-ethynyl-; Bicyclo[2.2.2]oct-2-ene, 5-ethynyl-; 5-Ethynyl-2-norbornene (ambiguous); Ethynyl bicyclooctene; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our Bicyclo[2.2.2]Oct-2-Ene, 5-Ethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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