The reaction of visnaginone, khillinone, and o-hydroxy-acetophenone with Lawesson's reagent†
Studies on Organophosphorus Compounds. Part XIV. For part xiii, see Tetrahedron, 49 (6), 1993, 1271.
Abstract
Lawesson's reagent reacts with visnaginone (2a), khillinone (2b), and o-hydroxyacetophenone (5) to give the 1,2-oxaphosphinane derivatives 4a, 4b, and 6, respectively.