Diethyl tartrate

Diethyl tartrate
Names
	Preferred IUPAC name Diethyl 2,3-dihydroxybutanedioate
	Other names Diethyl 2,3-dihydroxysuccinate
Identifiers
CAS Number	408332-88-7 ; 87-91-2 (R,R)-(+)-L; 13811-71-7 (S,S)-(−)-D; 57968-71-5 (D/L); 21066-72-8 meso;
3D model (JSmol)	Interactive image;
ChemSpider	104927 ;
PubChem CID	62333;
	InChI InChI=1S/C8H14O6/c1-3-13-7(11)5(9)6(10)8(12)14-4-2/h5-6,9-10H,3-4H2,1-2H3/t5-,6-/m0/s1 Key: YSAVZVORKRDODB-WDSKDSINSA-N ; InChI=1/C8H14O6/c1-3-13-7(11)5(9)6(10)8(12)14-4-2/h5-6,9-10H,3-4H2,1-2H3/t5-,6-/m0/s1 Key: YSAVZVORKRDODB-WDSKDSINBN;
	SMILES O=C(OCC)[C@@H](O)[C@H](O)C(=O)OCC;
Properties
Chemical formula	C8H14O6
Molar mass	206.194 g·mol−1
Appearance	Colorless liquid
Density	1.204 g/mL
Boiling point	280 °C (536 °F; 553 K)
Solubility in water	low
Magnetic susceptibility (χ)	-113.4·10−6 cm3/mol
Hazards
Safety data sheet	Diethyl D-Tartrate MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Diethyl tartrate is an organic compound with the formula (HOCHCO₂Et)₂ (Et = ethyl). Three stereoisomers exist, R,R-, S,S-, and R,S (=S,R-). They are the ethyl esters of the respective R,R-, S,S-, and R,S-tartaric acids. The R,R- and S,S- isomers are enantiomeric, being mirror images. The meso stereoisomer is not chiral. The chiral isomer is far more common.

In the Sharpless epoxidation, diethyl tartrate and titanium isopropoxide form a chiral catalyst in situ.[1]

References

Hill, J. Gordon; Sharpless, K. Barry; Exon, Christopher M.; Regenye, Ronald (1985). "Enantioselective Epoxidation of Allylic Alcohols: (2S,3S)-3-Propyloxiranemethanol". Organic Syntheses. 63: 66. doi:10.15227/orgsyn.063.0066.

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[1] Hill, J. Gordon; Sharpless, K. Barry; Exon, Christopher M.; Regenye, Ronald (1985). "Enantioselective Epoxidation of Allylic Alcohols: (2S,3S)-3-Propyloxiranemethanol". Organic Syntheses. 63: 66. doi:10.15227/orgsyn.063.0066.