The 2-phosphaethynolate anion: convenient synthesis and the reactivity

Abstract

Since Becker and co-workers isolated the 2-phosphaethynolate anion (PC–O⁻) in 1992, the phosphorus-containing analogue of the cyanate ion (NC–O⁻), the 2-phosphaethynolate anion has gained much attention because this anion is isoelectronic to small molecules such as OCS and F–CP as well as the thiocyanate anion SCN⁻. This paper highlights the recently reported methods for the synthesis of 2-phosphaethynolate anions and its utilization in the synthesis of organophosphorus compounds, especially the interesting work reported by two independent groups of J. M. Goicoechea and H. Grützmacher.