352229-79-9Relevant academic research and scientific papers
Synthesis of phosphorus- and selenium-containing macrocycles and their complexation with Pd(II)Cl2
Li,Meng,Wang,Wang,Matsuura
, p. 1140 - 1146 (2007/10/03)
A one-pot reaction was developed to synthesize phosphorus- and selenium-containing macrocycles starting from selenium via reduction with KBH4, treatment with bis[o-(bromomethyl)phenyl]phenylphosphine oxide 1 and reduction with KBH4 followed by the addition of an appropriate dibromide. Thus, ten-to seventeen-membered macrocycles 3 having one phosphorus and two selenium atoms were synthesized. In this synthesis an eight-membered heterocycle 4 was also obtained. In addition, the condensation of compound 1 with selenium-containing diols 7 and 8 in the presence of sodium tert-butoxide gave macrocyclic ligands 9 and 10, respectively. Reaction of these macrocycles with palladium(n) chloride gave 1: 1 complexes, except 9 which gave a 2: 1 complex. The molecular structures of the macrocycles 3c, 3f and 10 as well as the 2: 1 palladium(II) complex 21 of related 2-(p-methyl-phenoxy)-2-oxo-1,3,6,2-dioxaselenaphosphocane 20 have been established by X-ray diffraction.
