Description

3-Fluoro-1,5-Dioxaspiro[5.5]Undec-3-En-2-One is a high-value, fluorinated spirocyclic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique structure, featuring a fused spirocyclic lactone with a fluorine atom, makes it a versatile building block for constructing complex molecular architectures. This compound is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those requiring fluorinated spirocyclic motifs for enhanced metabolic stability and bioavailability.
• Agrochemical Research: Used in the development of new-generation pesticides and herbicides, where the fluorine atom and rigid spiro structure can improve activity and environmental profile.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers with unique thermal or optical properties.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex natural product analogs and other fine chemicals.
• Ligand and Catalyst Development: The oxygen-rich, rigid framework can be utilized to develop novel chiral ligands or organocatalysts for asymmetric synthesis.

Basic Information

Product Name	3-Fluoro-1,5-Dioxaspiro[5.5]Undec-3-En-2-One
CAS No.	134878-53-8
Molecular Formula	C9H11FO3
Molecular Weight	186.18 g/mol
Synonyms	3-Fluoro-1,5-dioxaspiro[5.5]undec-3-en-2-one; 3-Fluoro-1,5-dioxaspiro[5.5]undec-3-ene-2-one; 3-Fluoro-2H,5H-1,5-dioxaspiro[5.5]undec-3-en-2-one; Fluorinated Spirocyclic Lactone; Spiro[1,3-dioxane-5,2'-tricyclo[3.3.1.1³,⁷]decan]-4-one, 3-fluoro-; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for research and development. Every batch is characterized using advanced analytical techniques including NMR, HPLC, and GC-MS to confirm identity and purity. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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