(1R,5S)-3-Oxabicyclo[3.3.0]oct-6-en-2-one

CAS 128946-78-1C7H8O2Chemical Synthesis

(1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one (CAS: 128946-78-1), with a molecular formula of C7H8O2 and a molecular weight of 124.14 g/mol, is a chiral building block. This lactone is valuable in organic synthesis, particularly for asymmetric synthesis applications. Its specific stereochemistry makes it a useful intermediate for constructing complex molecular architectures. Tech Serve Solutions supplies this compound for research and development purposes.

IUPAC: (3aS,6aR)-3,3a,6,6a-Tetrahydro-1H-cyclopenta[c]furan-2-one
Synonyms: (3aS,6aR)-3,3a,6,6a-Tetrahydro-1H-cyclopenta[c]furan-2-one

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(1R,5S)-3-Oxabicyclo[3.3.0]oct-6-en-2-one (C7H8O2) — chemical structure, CAS 128946-78-1; Chemistry, fine chemical supplied by Tech Serve Solutions

Asymmetric SynthesisChemical SynthesisChiral Building BlocksLactonesOrganic Building Blocks

01 /Applications

Asymmetric Synthesis

This chiral lactone is employed as a building block in asymmetric synthesis, enabling the stereoselective construction of complex organic molecules. Its defined stereochemistry allows for precise control over reaction outcomes.

Organic Synthesis Intermediate

The compound serves as a versatile intermediate in various organic synthesis pathways. Its bicyclic lactone structure offers unique reactivity for further functionalisation and elaboration.

Chiral Pool Synthesis

As a component of the chiral pool, (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one can be utilised in syntheses where maintaining or introducing specific chirality is essential.

02 /Properties

Molecular weight	124.14
Empirical formula	C7H8O2
Assay	≥95.0% (GC)
Optical activity	[α]20/D 53±2°, c = 0.5% in methanol
Storage temperature	2-8°C

03 /Safety & handling

Protective equipment	Eyeshields, Gloves
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

128946-78-1

MDL number

MFCD05664713

Beilstein registry

4661660

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one used for?

(1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one is primarily used as a chiral building block in asymmetric synthesis and as a versatile intermediate in organic synthesis.

What is the CAS number and molecular formula for this compound?

The CAS number is 128946-78-1 and the molecular formula is C7H8O2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one with an assay of ≥95.0% (GC). This is a research grade chemical and is not represented as USP, BP, EP or pharmaceutical grade.

How should (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one be handled and stored?

Based on typical laboratory chemical handling, personal protective equipment such as eyeshields and gloves should be used. The recommended storage temperature is 2-8°C. Refer to the Safety Data Sheet for comprehensive handling and hazard information. This compound has a WGK rating of 3 in Germany.

How is this chemical packed, shipped, and exported?

Tech Serve Solutions ensures appropriate packaging for safe transport, adhering to international shipping regulations for chemical exports.

How can I request a sample or quote for (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one?

Please contact our sales team or use the online enquiry form on our website to request a sample or a quotation for (1R,5S)-3-Oxabicyclo[3.3.1]oct-6-en-2-one.