Description

(3Ar,2'S,5S)-3Aα,7Aα-Dihydro-2',6-Dimethyl-3-Methylenespiro[Benzofuran-5(4H),1'-Cyclopentan]-2(3H)-One is a high-purity, structurally complex spirocyclic compound with significant synthetic utility. This advanced chemical intermediate is valued for its precise stereochemistry and functional group arrangement, which makes it a critical building block in sophisticated organic synthesis. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex molecular architectures.
• Agrochemical Research: Used in the development of advanced pesticides and herbicides, where its spirocyclic core can contribute to unique biological activity.
• Organic Synthesis: Serves as a versatile precursor for constructing complex natural product analogs and other specialty organic molecules in academic and industrial laboratories.
• Material Science Research: Potential intermediate for creating novel polymers or functional materials with specific optical or electronic properties.
• Catalyst & Ligand Development: The defined stereocenters and functional groups make it a candidate for developing new chiral catalysts or ligands for asymmetric synthesis.

Basic Information

Product Name	(3Ar,2'S,5S)-3Aα,7Aα-Dihydro-2',6-Dimethyl-3-Methylenespiro[Benzofuran-5(4H),1'-Cyclopentan]-2(3H)-One
CAS No.	94137-83-4
Molecular Formula	C16H22O2
Molecular Weight	246.34 g/mol
Synonyms	Spiro[benzofuran-5(4H),1'-cyclopentan]-2(3H)-one, 3aα,7aα-dihydro-2',6-dimethyl-3-methylene-, (3aR,2'S,5S)-; (3aR,2'S,5S)-3a,7a-Dihydro-2',6-dimethyl-3-methylenespiro[benzofuran-5(4H),1'-cyclopentan]-2(3H)-one; (3aR,2'S,5S)-3aα,7aα-Dihydro-2',6-dimethyl-3-methylenespiro[benzofuran-5(4H),1'-cyclopentan]-2(3H)-one; Spirocyclic benzofuranone derivative; CAS 94137-83-4
EINECS	Contact for details

Quality Control

Every batch of (3Ar,2'S,5S)-3Aα,7Aα-Dihydro-2',6-Dimethyl-3-Methylenespiro[Benzofuran-5(4H),1'-Cyclopentan]-2(3H)-One is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including chiral HPLC and NMR, to ensure high chemical and isomeric purity and batch-to-batch consistency. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 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.