Description

2H-Pyran,3,4-Dihydro-2,2,6-Trimethyl-3-[(E)-(2-Methyl-2-Cyclopenten-1-Ylidene)Methyl]-,(3S)-(9Ci) is a high-purity, stereochemically defined organic compound valued for its unique structural framework. This molecule serves as a critical advanced intermediate or building block in the synthesis of complex target molecules, particularly in the fine chemical and pharmaceutical sectors. It is essential for research and development chemists and process engineers working on novel active ingredients, fragrances, and functional materials where precise stereochemistry and functional group compatibility are paramount.

Application

• Pharmaceutical Intermediate: A key chiral building block for the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), especially in therapeutic areas requiring complex polycyclic structures.
• Fragrance & Flavor Synthesis: Used in the research and development of high-value aroma chemicals, leveraging its terpene-like backbone to create unique olfactory profiles.
• Agrochemical Research: Serves as a sophisticated intermediate in the development of new generation pesticides and plant growth regulators with enhanced efficacy and selectivity.
• Material Science: Investigated as a monomer or precursor for specialty polymers, liquid crystals, or organic electronic materials due to its rigid, functionalized core.
• Organic Synthesis & Catalysis Research: Employed in methodological studies and as a test substrate for developing new asymmetric synthesis routes and catalytic transformations.

Basic Information

Product Name	2H-Pyran,3,4-Dihydro-2,2,6-Trimethyl-3-[(E)-(2-Methyl-2-Cyclopenten-1-Ylidene)Methyl]-,(3S)-(9Ci)
CAS No.	784201-52-1
Molecular Formula	C15H22O
Molecular Weight	218.33 g/mol
Synonyms	(3S)-3,4-Dihydro-2,2,6-trimethyl-3-[(1E)-2-methyl-2-cyclopenten-1-ylidene]methyl]-2H-pyran; (S)-3,4-Dihydro-2,2,6-trimethyl-3-[(E)-(2-methyl-2-cyclopenten-1-ylidene)methyl]-2H-pyran; (3S)-3-[(1E)-2-Methyl-1-cyclopenten-1-yl]methylene]-3,4-dihydro-2,2,6-trimethyl-2H-pyran; 2H-Pyran, 3,4-dihydro-2,2,6-trimethyl-3-[(1E)-(2-methyl-2-cyclopenten-1-ylidene)methyl]-, (3S)-; (S)-Dihydrotrimethylpyran cyclopentylidene derivative; Chiral dihydropyran intermediate; CAS 784201-52-1
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is characterized and tested using advanced analytical techniques including HPLC, GC, and NMR to ensure identity, purity, and stereochemical integrity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support development and scale-up projects with consistent quality, traceable documentation, and regulatory support packages as required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0% (Standard Grade)
Enantiomeric Purity (Chiral HPLC)	≥ 98.0% 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.