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I. Synthesis and Applications in Catalysis

A New Versatile Synthesis of Functionalized Phosphine Oxides—Efficient Ligands for Rare-Earth Metals Extraction

, , , , , & show all
Pages 694-697 | Received 08 Jul 2010, Accepted 09 Aug 2010, Published online: 25 Apr 2011
 

Abstract

A new approach to the synthesis of 2-hydroxyaryl-alkenylphosphine oxides and dialkyl (diaryl)-(2-methyl-4-oxopent-2-yl)phosphine oxides was developed that involves an interaction of Grignard reagents with available benzo[e]-1,2-oxaphosphorinines and 1,2-oxaphospholene-2-oxide. This approach allows obtaining target compounds with a high yield. The synthesized phosphine oxides proved to be highly efficient extractants in the micellar extraction of some lanthanides from the nitric acid media.

Acknowledgments

The work was supported by the Russian Foundation for Basic Research and Tatarstan Academy of Sciences (grant No. 09-03-97007-r_a) and by a grant from the president of the Russian Federation (MK-1172.2010.3).

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