Description

(4R)-4-T-Butyl-1,2,3-Oxathiazolidine-2,2-Dioxide-3-Carboxylic Acid T-Butyl Ester, Min. 97% is a high-purity, chiral oxathiazolidine dioxide derivative, serving as a critical chiral auxiliary and building block in asymmetric synthesis. Its primary value lies in enabling the stereoselective construction of complex molecules, ensuring high enantiomeric purity in final products. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality intermediates for producing active pharmaceutical ingredients (APIs) and specialty chemicals.

Application

• As a chiral auxiliary in the asymmetric synthesis of pharmaceutical intermediates and active ingredients.
• Key building block for constructing stereodefined heterocycles and complex molecular architectures.
• Utilized in process chemistry for the scale-up production of enantiomerically pure compounds.
• Research reagent in methodology development for new catalytic and stoichiometric asymmetric reactions.
• Intermediate in the synthesis of agrochemicals requiring specific stereochemistry for biological activity.
• Precursor for ligand development in asymmetric catalysis.

Basic Information

Product Name	(4R)-4-T-Butyl-1,2,3-Oxathiazolidine-2,2-Dioxide-3-Carboxylic Acid T-Butyl Ester, Min. 97%
CAS No.	1313705-92-8
Molecular Formula	C₁₂H₂₁NO₅S
Molecular Weight	291.36 g/mol
Synonyms	(4R)-4-(tert-Butyl)-1,2,3-oxathiazolidine-2,2-dioxide-3-carboxylic acid tert-butyl ester; tert-Butyl (4R)-4-(tert-butyl)-2,2-dioxo-1,2,3-oxathiazolidine-3-carboxylate; (R)-4-tert-Butyl-1,2,3-oxathiazolidine-2,2-dioxide-3-carboxylic acid tert-butyl ester; (R)-tert-Butyl 4-(tert-butyl)-2,2-dioxo-2λ⁶-1,2,3-oxathiazolidine-3-carboxylate; Chiral Oxathiazolidine Dioxide Ester; (R)-Oxathiazolidine Dioxide Derivative; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our (4R)-4-T-Butyl-1,2,3-Oxathiazolidine-2,2-Dioxide-3-Carboxylic Acid T-Butyl Ester is manufactured under strict quality management protocols. Every batch undergoes rigorous analytical testing, including chiral HPLC and NMR, to ensure the specified minimum 97% purity and correct stereochemical integrity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive; prolonged exposure to light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 97.0%
Enantiomeric Excess (Chiral HPLC)	Min. 99.0%
Loss on Drying	Max. 0.5%
Residue on Ignition	Max. 0.1%

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