2,3-Dihydroxybutanedioic Acid → HCID 102020809, compound

Participants

Reaction Steps

Diacetyl-L-tartaric anhydride is prepared from D-tartaric acid in the manner described in "DIACETYL-d-TARTARIC ANHYDRIDE (Tartaric anhydride, diacetate of d-)", Organic Synthesis, Collective Volume 4, 242-243 (1963). Briefly, a tartaric acid isomer or mixture of isomers is treated with acetic anhydride with a catalytic amount of sulfuric acid. The solution is heated gently for about 10 minutes and poured into an ice bath. The crystalline material formed is collected on a filter and is washed with toluene and ether and dried over phosphorus pentoxide and paraffin shavings. The crystalline bisacetyltartaric anhydride is used as is described in the following paragraph.

Provenance & Evidence