Description

Dispiro[3.1.4.1]Undecane-2-Carbonyl Chloride (7Ci) is a specialized spirocyclic acid chloride building block of significant interest in advanced organic synthesis. Its unique, rigid polycyclic structure makes it a valuable precursor for constructing complex molecular architectures with precise stereochemistry. This high-purity intermediate is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel drug candidates, particularly those requiring complex, three-dimensional scaffolds.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its spirocyclic core can impart unique biological activity.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of specialty polymers with tailored thermal or mechanical properties.
• Ligand and Catalyst Development: Employed to create sophisticated chiral ligands and organocatalysts for asymmetric synthesis.
• Chemical Biology Probes: Utilized to synthesize molecular probes for studying biological systems and protein interactions.
• Academic & Industrial R&D: A critical reagent for methodological studies in organic chemistry and the exploration of new chemical spaces.

Basic Information

Product Name	Dispiro[3.1.4.1]Undecane-2-Carbonyl Chloride (7Ci)
CAS No.	91561-69-2
Molecular Formula	C11H13ClO
Molecular Weight	196.67 g/mol
Synonyms	Dispiro[3.1.4.1]undecane-2-carbonyl chloride; 2-Carboxybicyclo[2.2.1]heptane-7-spiro-3'-(1',2'-dioxolane)-2-carbonyl chloride; 7-Oxadispiro[3.1.4.1]dodecane-8-carbonyl chloride; Bicyclo[2.2.1]heptane-7-spiro-3'-(1',2'-dioxolane)-2-carbonyl chloride; (7Ci) labeled Dispiro undecane carbonyl chloride; Spirocyclic acid chloride 91561-69-2.
EINECS	Contact for details

Quality Control

Our Dispiro[3.1.4.1]Undecane-2-Carbonyl Chloride (7Ci) is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) detailing batch-specific results are provided and available upon request to support your quality assurance protocols.

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 and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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