1,3-Diphosphetane-2,4-diyles (A) possess a diradical molecular structure. Experimental studies reveal interconversions of different valence isomers of the diradicals. As a consequence of the facile thermal ring opening of 1,3-diphosphetane-2.4-diyles A, we obtained cryptophosphinocarbenes (B), confirmed by the results of intramolecular rearrangements as well as reactions with multiple bonded systems. A new range of five- and six-membered phosphorus heterocycles are isolated, including transition-metal complexes. The mechanism for the ring-expansion are predicted by quantum chemical calculations.
|Number of pages||4|
|Journal||Phosphorus, Sulfur and Silicon and Related Elements|
|Publication status||Published - Nov 14 2002|
ASJC Scopus subject areas
- Organic Chemistry
- Inorganic Chemistry