Description

1,7-Dioxaspiro5.5Undecane, 5-Methoxy-3-(Phenylmethoxy)-, (3.Alpha.,5.Alpha.,6.Beta.)- is a high-purity, stereochemically defined spirocyclic compound of significant interest in advanced organic synthesis. Its complex, functionalized structure makes it a valuable chiral building block and key intermediate for the development of novel active pharmaceutical ingredients (APIs), agrochemicals, and specialty fragrances. This product is essential for research and development chemists and process scale-up teams in the pharmaceutical, fine chemical, and flavor & fragrance industries seeking to introduce specific stereochemistry and molecular complexity into their target molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the multi-step synthesis of complex drug candidates, particularly those targeting neurological and metabolic disorders.
• Agrochemical Research: Used as a precursor in the development of new-generation pesticides and herbicides with enhanced specificity and lower environmental impact.
• Flavor & Fragrance Chemistry: Acts as a building block for creating novel, proprietary aroma molecules with unique olfactory profiles for high-end perfumery and flavoring agents.
• Academic & Industrial R&D: Employed in methodological studies and catalysis research for developing new synthetic routes to spirocyclic and oxygenated heterocycles.
• Material Science Precursor: Investigated for the synthesis of specialized monomers that can impart specific rigidity and functionality into advanced polymers.

Basic Information

Product Name	1,7-Dioxaspiro5.5Undecane, 5-Methoxy-3-(Phenylmethoxy)-, (3.Alpha.,5.Alpha.,6.Beta.)-
CAS No.	191659-91-3
Molecular Formula	C17H24O4
Molecular Weight	292.37 g/mol
Synonyms	(3α,5α,6β)-5-Methoxy-3-(phenylmethoxy)-1,7-dioxaspiro[5.5]undecane; 5-Methoxy-3-(benzyloxy)-1,7-dioxaspiro[5.5]undecane (stereoisomer); 3α,5α,6β-Isomer of 5-Methoxy-3-benzyloxy-1,7-dioxaspiro[5.5]undecane; Spirocyclic ketal ether; Benzyl-protected spiroketal derivative.
EINECS	Contact for details

Quality Control

Every batch of our 1,7-Dioxaspiro5.5Undecane, 5-Methoxy-3-(Phenylmethoxy)-, (3.Alpha.,5.Alpha.,6.Beta.)- is manufactured under strict quality management systems. We employ advanced analytical techniques including HPLC, GC, NMR, and chiral analysis to ensure identity, purity, and stereochemical integrity. Certificates of Analysis (COA) detailing all critical parameters are provided with each shipment and are available upon request.

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). This compound may be sensitive to prolonged exposure to moisture and air; for long-term storage, consider an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity	≥ 98.0% ee (by chiral HPLC or GC)
Melting Point	Contact for details
Loss on Drying	≤ 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.