180006-74-0Relevant articles and documents
New examples of Arbuzov rearrangements of coordinated phosphites initiated by metal-centred radicals
Kuksis, Inga,Baird, Michael C.
, p. 253 - 255 (1996)
Reaction of the persistent, iron-centred radical {η5-C5Ph4(p-tolyl)}Fe(CO)2 · with tertiary phosphites P(OR)3 (R = Me, Et) results in the formation of the Arbuzov rearrangement products {η5-C5Ph4(p-tolyl)}Fe(CO)2R, {η5-C5Ph4(p-tolyl)}Fe(CO)2{PO(OR)2} and {η5-C5Ph4(p-tolyl)}Fe(CO){P(OR)3}{PO(OR)2}. For both phosphites, the metal-centred radicals {η5-C5Ph4(p-tolyl)}Fe(CO){P(OR)3} · appear to be intermediates in a process which involves initial, direct abstraction by {η5-C5Ph4(p-tolyl)}Fe(CO)2 · of an alkyl group R from the coordinated P(OR)3 of {η5-C5Ph4(p-tolyl)}Fe(CO){P(OR)3} ·, followed by interception of the 16-electron intermediate, {η5-C5Ph4(p-tolyl)}Fe(CO){PO(OR)2}, by CO and P(OR)3.