Description

2H-Pyran-2-Carbonyl Chloride, 3,4-Dihydro- (9Ci) is a reactive acid chloride derivative of dihydropyran, serving as a versatile and critical building block in advanced organic synthesis. Its primary value lies in its ability to introduce the dihydropyranoyl moiety, enabling the construction of complex molecular architectures with high efficiency. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the synthesis of novel drug candidates, including potential central nervous system (CNS) agents and anti-inflammatory compounds.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the dihydropyran structure contributes to biological activity.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for creating specialty polymers with tailored thermal or mechanical properties.
• Ligand and Catalyst Development: Serves as a precursor for synthesizing chiral ligands and organocatalysts used in asymmetric synthesis.
• Material Science Research: Employed in the development of organic electronic materials and liquid crystals.
• Fine Chemical Production: Integral for manufacturing flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	2H-Pyran-2-Carbonyl Chloride, 3,4-Dihydro- (9Ci)
CAS No.	114769-18-5
Molecular Formula	C6H7ClO2
Molecular Weight	146.57 g/mol
Synonyms	3,4-Dihydro-2H-pyran-2-carbonyl chloride; 3,4-Dihydro-2H-pyran-2-carbonyl chloride; Dihydro-2H-pyran-2-carbonyl chloride; 2H-Pyran-2-carbonyl chloride, 3,4-dihydro-; Tetrahydro-2H-pyran-2-carbonyl chloride (common misnomer); 3,4-Dihydro-2H-pyran-2-carboxylic acid chloride; 2-Oxo-3,4-dihydro-2H-pyran-6-carbonyl chloride (tautomeric form).
EINECS	Contact for details

Quality Control

Our 2H-Pyran-2-Carbonyl Chloride, 3,4-Dihydro- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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