Precursors for the generation of neopentyl and 1-adamantyl metaphosphates were prepared by the insertion of oxygen into a ring carbon-phosphorus bond of some 7- phospbanorbornene derivatives. The stereochemistry of the resulting products, which possess the 2, 3-oxaphosphabicyclo [2.2. 2] octene ring system, was established by NMR spectroscopy, and by X-ray analysis in one case. The 0-insertion (by MCPBA) generally ...
