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Lanthanoid-metal-mediated reaction of acylphosphonates: evidence for the formation of an acyllanthanoid complex

1995; Elsevier BV; Volume: 491; Issue: 1-2 Linguagem: Inglês

10.1016/0022-328x(94)05218-z

1872-8561

Yuki Taniguchi, Nobuto Fujii, Ken Takaki, Yuzo Fujiwara,

Synthesis and Reactivity of Sulfur-Containing Compounds

The reactions of diethyl acylphosphonates (1a-e) with Yb and Sm were examined. Reactivities of Yb to 1a-e are different from those of Li and Na. Typically, ethyl benzoylphosphonate (1a) reacts with Yb metal in tetrahydrofuran-hexamethylphosphoramide to afford diethyl 1,2-diphenyl-2-oxoethyl phosphate (2a) and diethyl 1-(diethyl-phosphoryloxy)-1-phenylmethylphosphonate (3a). The formations of 2a and 3a were explained best by the formation of acylytterbium complexes.