Spatial structure of phosphorus-containing heterocycles. 23. 2-Phenoxy-1,3,2-dioxaphosphorinanes with four-coordinate phosphorus

Abstract

1. The change in the valence state of the phosphorus atom influences the orientation with respect to the P-O(Ph) bond in 2-phenoxy-2-oxo(thiono)-1,3,2-dioxaphosphorinanes. 2. An orthogonal conformation is realized in the O-Ph fragment of the compounds investigated, regardless of the hybridization of the phosphorus.