Phosphonates Containing Sulfur and Selenium: the First Synthesis of α-Phosphorylvinyl Selenides and Selenoxides and a New Synthetic Approach to Alkynylphosphonates

Article abstract of DOI:10.1016/0040-4039(95)00371-I

An efficient, two-step synthesis of α-phosphorylvinyl selenides 4 from α-phosphoryl sulfoxides 1 is described which involves selenenylation reaction and subsequent thermal sulfoxide elimination.Oxidation of 4 leads to α-phosphorylvinyl selenoxides 5 which upon thermolysis afford alkynylphosphonates 6.