Description

(R)-3-Methoxydihydro-2H-Pyran-4(3H)-One is a chiral, non-racemic heterocyclic building block of significant synthetic utility. This compound is valued for its role as a key intermediate in the synthesis of complex molecules, particularly in the pharmaceutical and fine chemical industries. It is primarily sought after by research chemists and process development scientists for constructing active pharmaceutical ingredients (APIs), natural products, and other high-value chiral targets.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon for the development of novel therapeutic agents and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Used as a building block in stereoselective reactions to introduce the (R)-configured methoxy-dihydropyranone moiety.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Academic & Industrial Research: Employed in methodological studies and the discovery of new synthetic routes in organic chemistry.
• Agrochemical Synthesis: Potential intermediate in the development of chiral pesticides and herbicides.

Basic Information

Product Name	(R)-3-Methoxydihydro-2H-Pyran-4(3H)-One
CAS No.	851916-41-1
Molecular Formula	C6H10O3
Molecular Weight	130.14 g/mol
Synonyms	(R)-3-Methoxy-3,4-dihydro-2H-pyran-4-one; (R)-3-Methoxytetrahydro-4H-pyran-4-one; (R)-3-Methoxy-4H-pyran-4-one, dihydro-; (R)-3-Methoxydihydro-4H-pyran-4-one; (3R)-3-Methoxy-3,4-dihydro-2H-pyran-4-one; (R)-3-Methoxy-3,4-dihydro-2H-pyran-4-one; (R)-3-Methoxy-4H-pyran-4-one
EINECS	Contact for details

Quality Control

Our (R)-3-Methoxydihydro-2H-Pyran-4(3H)-One is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for advanced synthetic applications. A Certificate of Analysis (COA) detailing identity, purity, and chiral excess is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere for long-term storage to maintain optimal purity and stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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