alpha- and beta-Diphenylphosphorylated Secondary Alkanols: I. General Method of Synthesis and Extraction Properties Towards f-Elements

摘要

A simple and effective general method of synthesis of alpha- and beta-diphenylphosphorylated secondary alkanols by the reduction of the corresponding phosphorylalkanones with NaBH4 was developed. The extraction properties of the resulting phosphorylalkanols Ph2P(O)(CR2)(n)CH2CH(OH)Me (n = 0, 1; R = H, Me) were studied in the recovery of f-elements (La-III, Nd-III, Ho-III, Yb-III, U-VI, Th-IV) from nitric acid solutions into chloroform and compared with those of both related phosphorylketones and known extractants (n-BuO)(3)PO, (n-C8H17)(3)PO, and Ph2P(O)CH2C(O)N(n-Bu)(2).