Description

(3Ar,5R,5As,8As,8Br)-5-Ethyl-2,2,7,7-Tetramethyltetrahydro-3Ah-Bis([1,3]Dioxolo)[4,5-B:4,5-D]Pyran is a complex, high-purity chiral compound with a unique fused bis-dioxolopyran structure. This compound is valued for its role as a sophisticated synthetic intermediate and building block in advanced organic synthesis. It is primarily sought by research and development teams in the pharmaceutical and fine chemical industries for applications in asymmetric synthesis, catalyst development, and the creation of novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block in the synthesis of potential active pharmaceutical ingredients (APIs), particularly for complex target molecules.
• Asymmetric Synthesis: Utilized in the development and study of stereoselective reactions due to its defined stereocenters and rigid framework.
• Ligand and Catalyst Development: Acts as a precursor or core structure for novel chiral ligands and organocatalysts used in enantioselective transformations.
• Fine Chemical Research: Employed in academic and industrial R&D for constructing complex natural product analogs and specialty chemicals.
• Material Science Precursor: Investigated for the synthesis of specialized organic frameworks and polymers with specific stereochemical properties.

Basic Information

Item	Details
Product Name	(3Ar,5R,5As,8As,8Br)-5-Ethyl-2,2,7,7-Tetramethyltetrahydro-3Ah-Bis([1,3]Dioxolo)[4,5-B:4,5-D]Pyran
CAS No.	117475-49-7
Molecular Formula	C15H22Br2O6
Molecular Weight	466.14 g/mol
Synonyms	5-Ethyl-2,2,7,7-tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4',5'-d]pyran; Tetrahydrobis(dioxolo)pyran derivative; CAS 117475-49-7; (3aR,5R,5aS,8aS,8bR)-5-Ethyl-2,2,7,7-tetramethyltetrahydro-3aH-[1,3]dioxolo[4,5-b][1,3]dioxolo[4,5-d]pyran; Brominated bis-dioxolane pyran.
EINECS	Contact for details

Quality Control

Every batch of (3Ar,5R,5As,8As,8Br)-5-Ethyl-2,2,7,7-Tetramethyltetrahydro-3Ah-Bis([1,3]Dioxolo)[4,5-B:4,5-D]Pyran is produced and analyzed under strict quality management protocols. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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