Description

(2S,3S)-(+)-Diethyl 2,3-o-Benzylidenetartrate is a high-purity, chiral organic compound widely utilized as a key synthetic intermediate and chiral auxiliary in asymmetric synthesis. Its rigid, well-defined stereochemistry makes it invaluable for constructing complex molecules with precise three-dimensional control, directly impacting the efficiency and yield of advanced chemical processes. This product is essential for research and development laboratories, pilot plants, and production facilities in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop enantiomerically pure active ingredients.

Application

• Chiral Auxiliary in Asymmetric Synthesis: Used to induce stereoselectivity in the formation of new chiral centers during complex organic reactions.
• Pharmaceutical Intermediate: A critical building block for the synthesis of enantiomerically pure drugs, particularly in oncology, neurology, and antiviral therapeutic areas.
• Agrochemical Synthesis: Employed in the production of chiral pesticides and herbicides where specific stereoisomers exhibit superior biological activity.
• Fine Chemical and Specialty Chemical Manufacturing: Serves as a precursor for flavors, fragrances, and advanced materials requiring high stereochemical fidelity.
• Academic and Industrial R&D: A valuable reagent for methodological development in organic chemistry and catalysis research.
• Ligand and Catalyst Preparation: Used in the synthesis of chiral ligands for transition metal catalysts employed in asymmetric hydrogenation and cross-coupling reactions.

Basic Information

Product Name	(2S,3S)-(+)-Diethyl 2,3-o-Benzylidenetartrate
CAS No.	141042-56-0
Molecular Formula	C20H20O6
Molecular Weight	356.37 g/mol
Synonyms	(+)-Diethyl (2S,3S)-2,3-O-Benzylidenetartrate; Diethyl (2S,3S)-2,3-O-(Phenylmethylene)-L-tartrate; (2S,3S)-Diethyl 2,3-O-Benzylidene-L-threonate; L-(+)-Diethyl 2,3-O-Benzylidenetartrate; (2S,3S)-(+)-2,3-O-Benzylidene-diethyl tartrate; Benzylidene-protected Diethyl L-Tartrate; (2S,3S)-Benzylidene Diethyl Tartrate
EINECS	Contact for details

Quality Control

Our (2S,3S)-(+)-Diethyl 2,3-o-Benzylidenetartrate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for sensitive asymmetric synthesis. Certificates of Analysis (COA) with detailed specifications for identity, purity, and enantiomeric excess are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This compound is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive); therefore, containers should be kept tightly sealed under an inert atmosphere if specified.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Melting Point	Specification available upon request
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 10 ppm

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