Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2120193Generated: October 31, 2026

2,3-Dihydroxybutanedioic Acid → HCID 131724338, compound

https://huagongshe.com/reaction/2120193

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-Dihydroxybutanedioic AcidHCID 875—
Reactant6-Amino-3-butyl-phthalideHCID 9877706—
SolventMethanolHCID 887—
ProductHCID 131724338HCID 131724338—

Reaction Steps

A hot solution of 10.26 g (0.05 mol) of compound obtained in Example 4 in 115 ml of anhydrous methanol is mixed with a warm solution of 7.51 g (0.05 mol) of (+)-tartaric acid in 60 ml of methanol. The mixture is put aside at room temperature overnight, and then at 0-5° C. for 2 hours. The separated crystals are collected and washed with a small amount of methanol to give white crystals. Recrystallisation from methanol (1:8) three times gives the title compound containing one molecule of methanol, as white needles.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06689808B2
Source datasetuspto-grants-2004_02
ORD IDord-c96033c29a1c4cd9b15cf07f3773080a
Source noteuspto-grants-2004_02