Description

Spiro3,7-Dioxabicyclo4.1.0Heptane-4,2-2Hpyran, Tetrahydro-5-(Phenylmethoxy)-, (1.Alpha.,4.Alpha.,5.Beta.,6.Alpha.)- is a high-purity, specialized spirocyclic ether compound with the CAS registry number 191659-83-3. This advanced chemical intermediate is valued for its unique, rigid molecular scaffold, which is critical for imparting specific stereochemistry and structural complexity in synthetic pathways. It is primarily sought after by pharmaceutical R&D and fine chemical synthesis teams for developing novel active ingredients and complex organic molecules.

Application

• Pharmaceutical Intermediate: A key chiral building block in the synthesis of novel drug candidates, particularly in central nervous system (CNS) and antiviral research.
• Asymmetric Synthesis: Utilized as a sophisticated ligand or precursor in catalytic asymmetric reactions to produce enantiomerically pure compounds.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of advanced polymers with specific thermal or mechanical properties.
• Agrochemical Development: Employed in the research and synthesis of new-generation, high-efficacy crop protection agents with complex mode-of-action.
• Academic & Industrial R&D: Used in chemical research laboratories for methodological studies and the exploration of new synthetic routes involving spirocyclic frameworks.
• Flavor & Fragrance Chemistry: Potential intermediate for creating complex, proprietary aroma molecules due to its unique oxygenated bicyclic structure.

Basic Information

Product Name	Spiro3,7-Dioxabicyclo4.1.0Heptane-4,2-2Hpyran, Tetrahydro-5-(Phenylmethoxy)-, (1.Alpha.,4.Alpha.,5.Beta.,6.Alpha.)-
CAS No.	191659-83-3
Molecular Formula	C15H18O4
Molecular Weight	262.30 g/mol
Synonyms	(1α,4α,5β,6α)-Tetrahydro-5-(phenylmethoxy)spiro[3,7-dioxabicyclo[4.1.0]heptane-4,2'-[2H]pyran]; 5-(Benzyloxy)spiro[3,7-dioxabicyclo[4.1.0]heptane-4,2'-[2H]pyran], tetrahydro-, (1α,4α,5β,6α)-; Tetrahydro-5-(phenylmethoxy)spiro[3,7-dioxabicyclo[4.1.0]heptane-4,2'-[2H]pyran] (stereoisomer); Spirocyclic benzyloxy ether; CAS 191659-83-3.
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Each batch is characterized and tested using advanced analytical techniques including HPLC, GC, NMR, and chiral analysis to ensure high chemical and isomeric purity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality and regulatory documentation 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 (typically 15-25°C). The container should be kept tightly sealed in a dry environment to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral 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.