Paper on P-stereogenic phosphacrowns with various ring skeletons was published in Heterocycles.

“P-Stereogenic Diphosphacrowns: Facile Incorporation of Aromatic Rings”

Kato, R.; Watanabe, H.; Morisaki, Y.; Chujo Y. Heterocycles 2015, 91(12), 2295-2306.

10.3987/COM-15-13324