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Updated: Jul 12, 2026

Synthesis of High Purity Nonsymmetric Dialkylphosphinic Acid Extractants
Published on: October 19, 2017
[Ionol phosphorus organic analogs and stabilization of levorin]
V V Belakhov1, Iu D Shenin, Nifant'ev 'EE
1Research Technological Institute of Antibiotics and Medical Enzymes, St. Petersburg.
Abstract:
Stability of levorin isolated and purified with the use of ionole phosphorus organic analogs having in their structure phosphate, phosphonate and phosphonite groups was studied. The compound having in its structure (in addition to tertiary butyl substitutes) the phosphonite group with the P-H bond increasing the compound antioxidant property was shown to have the highest stabilizing effect. The results of the study made it possible to recommend the use of the space complicated phenols with the structure fragments of the P-H bond type as antioxidants in production of levorin.
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