Organophosphorus compounds; 124. Phosphorus-phosphorus bond cleavage in phosphorus-carbon cage compounds containing a diphosphirane moiety

摘要

The reactions of diphosphatricyclooctenes 9 with bromine (10a) or iodine chloride (10b) proceed by selective cleavage of the phosphorus-phosphorus bond of the diphosphirane unit with formation of the diphosphabicyclooctenes 11. On reaction of 11a with one equivalent of nonacarbonyldiiron (12) metal complexation of one phosphorus center (--> 13a) is achieved. The constitution of the eta(1)-complex 13a was confirmed by X-ray crystallography. [References: 18]